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11925 Commits

Author SHA1 Message Date
Andrew Lenharth
f6947c1bb8 prevent cse of readcyclecounter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24303 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-11 19:02:54 +00:00
Andrew Lenharth
51b8d54922 continued readcyclecounter support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-11 16:47:30 +00:00
Chris Lattner
92c4bb904f Fix the optimized code handling of user asm strings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24296 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 23:24:26 +00:00
Chris Lattner
5684598f3f Make BB and CPI labels use the function number, not the function name as a 
uniquing id.  This makes things happy when the function name is quoted,
preventing labels like LBB"foo"_2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24295 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 21:59:25 +00:00
Chris Lattner
bc076665cb speedup the common case where nothing needs to be quoted 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24294 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 21:47:01 +00:00
Chris Lattner
91150e5d46 Allow per-character control over what target assemblers allow in symbol 
names.  This also changes the default to allow all of "$_." in addition
to letters and numbers as symbol names.  If you don't want this, use
markCharUnacceptable to remove one of these or markCharAcceptable to add
to the set.  This corresponds with what GAS accepts by default.

Also, this includes some minor speedups


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24293 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 21:40:01 +00:00
Chris Lattner
ba9c6434b9 do not allow '.' in symbol names 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24292 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 21:39:29 +00:00
Andrew Lenharth
fa25e48412 the pain isn't gone unless the phinodes are spilled too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24288 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 19:39:09 +00:00
Chris Lattner
85eac0d941 Darwin supports quoted labels. This implements: 
test/Regression/CodeGen/PowerPC/darwin-labels.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24287 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 19:33:43 +00:00
Chris Lattner
ac8c834288 Add a new option for targets that accept quoted labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24283 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 19:30:07 +00:00
Chris Lattner
2f9bc4f2d3 remove the M instance var 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24281 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 19:02:18 +00:00
Chris Lattner
36c975c023 Call this method with the object we have 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24279 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:53:25 +00:00
Chris Lattner
ed0c4ecf05 nuke blank line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24278 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:49:46 +00:00
Chris Lattner
9ddf21276e Make this more efficient of the common case where we are only mangling globals. 
Do not mangle internal global names that do not collide with anything.

This gives us strings that now look like this:

__2E_str_1:                             ; '.str_1'
        .asciz  "foo"

instead of this:

l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24277 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:48:58 +00:00
Chris Lattner
450de393ac Get rid of casts by #including the right header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24275 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:36:17 +00:00
Chris Lattner
3459bfbc39 Make the aix asm printer interface properly with the parent class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24274 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:20:29 +00:00
Chris Lattner
2a21c6e861 Compile C strings to: 
l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

not:

        .align  0
l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24273 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:09:27 +00:00
Chris Lattner
2980cefb80 add support for .asciz, and enable it by default. If your target assemblerdoesn't support .asciz, just set AscizDirective to null in your asmprinter. 
This compiles C strings to:

l1__2E_str_1:                           ; '.str_1'
        .asciz  "foo"

instead of:

l1__2E_str_1:                           ; '.str_1'
        .ascii  "foo\000"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24272 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 18:06:33 +00:00
Andrew Lenharth
99b8e26b84 this works with backedges to the existing entry block alot better 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24270 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 17:35:34 +00:00
Andrew Lenharth
7b441dc966 fix a bunch of regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24269 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 16:59:55 +00:00
Andrew Lenharth
183119cdf6 The pass everyone has been waiting for! 
Reg2Mem

for fun you can opt -reg2mem -mem2reg


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24267 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 01:58:38 +00:00
Chris Lattner
9547d7fe33 Force vectors to be a power of two in size 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24265 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 01:42:43 +00:00
Chris Lattner
d115ef8973 Force packed vectors to be a power of two in length. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24264 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-10 01:40:59 +00:00
Chris Lattner
de202b3cda Switch the allnodes list from a vector of pointers to an ilist of nodes.This eliminates the vector, allows constant time removal of a node froma graph, and makes iteration over the all nodes list stable when adding 
nodes to the graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24263 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 23:47:37 +00:00
Chris Lattner
c9ea6fde30 Refactor intrinsic lowering stuff out of visitCall 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24261 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 19:44:01 +00:00
Andrew Lenharth
5cefc5e64d whatever. Intermediate patch to see what breaks. Seems ok. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24260 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 19:17:08 +00:00
Chris Lattner
040c11c24e Handle the trivial (but common) two-op case more efficiently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24259 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 18:48:57 +00:00
Chris Lattner
e6a88ac1b9 Nuke noop copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24258 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 18:22:42 +00:00
Chris Lattner
6b2d69655a Fix CodeGen/X86/shift-folding.ll:test3 on X86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24256 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 16:50:40 +00:00
Chris Lattner
9a5ef20f5e Disable some overly-aggressive checking code. This speeds up the local 
allocator from 23s to 11s on kc++ in debug mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24255 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 05:28:45 +00:00
Chris Lattner
7436b57de3 Avoid creating a token factor node in trivially redundant cases. This 
eliminates almost one node per block in common cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24254 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 05:03:03 +00:00
Chris Lattner
7c0104b525 Handle GEP's a bit more intelligently. Fold constant indices early and 
turn power-of-two multiplies into shifts early to improve compile time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24253 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-09 04:45:33 +00:00
Chris Lattner
0d902a9c74 Allocate the right amount of memory for this vector up front. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24252 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 23:32:44 +00:00
Chris Lattner
a32551197a Change the ValueList array for each node to be shared instead of individuallyallocated. Further, in the common case where a node has a single value, justreference an element from a small array. This is a small compile-time win. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24251 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 23:30:28 +00:00
Chris Lattner
65113b2f86 Switch the operandlist/valuelist from being vectors to being just an array.This saves 12 bytes from SDNode, but doesn't speed things up substantially 
(our graphs apparently already fit within the cache on my g5).  In any case
this reduces memory usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 22:07:03 +00:00
Chris Lattner
4012eb2137 Explicitly initialize some instance vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 21:54:57 +00:00
Chris Lattner
f469cb6546 Clean up RemoveDeadNodes significantly, by eliminating the need for a temporary 
set and eliminating the need to iterate whenever something is removed (which
can be really slow in some cases).  Thx to Jim for pointing out something silly
I was getting stuck on. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24241 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 18:52:27 +00:00
Chris Lattner
df2e425f2a Add a new option to indicate we want the code generator to emit code quickly, 
not spending tons of time microoptimizing it.  This is useful for an -O0
style of build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24235 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 02:12:47 +00:00
Chris Lattner
ce8eb0c16b Add a new option to indicate we want the code generator to emit code quickly,not spending tons of time microoptimizing it. This is useful for an -O0style of build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24233 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-08 02:11:51 +00:00
Jim Laskey
26b91ebb63 Let's try ignoring resource utilization on the backward pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24231 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-07 19:08:53 +00:00
Duraid Madina
d525df3c27 add support for storing and returning bools 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24228 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-07 03:11:02 +00:00
Chris Lattner
cbef8ba5f9 Always compute max align. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24227 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 17:43:20 +00:00
Duraid Madina
00873ebc1f just some random hacking - calls (particularly indirect) need a lot of 
love (especially with -sched=simple)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24225 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 13:43:30 +00:00
Nate Begeman
ae232e7a10 Add the necessary support to the ISel to allow targets to codegen the new 
alignment information appropriately.  Includes code for PowerPC to support
fixed-size allocas with alignment larger than the stack.  Support for
arbitrarily aligned dynamic allocas coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 09:00:38 +00:00
Chris Lattner
ce5e04e710 minor clarity changes, no functionality difference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24223 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 08:23:17 +00:00
Chris Lattner
54b369e752 don't misencode CC#'s 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24219 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 07:46:13 +00:00
Chris Lattner
e73bd45c1d encode/decode function alignment in bc files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24218 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 07:43:39 +00:00
Chris Lattner
8eb52dd734 Read/write global variable alignments if present 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24216 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 07:11:04 +00:00
Chris Lattner
30caa2876c print alignment info for globals and functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24212 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 06:48:53 +00:00
Chris Lattner
0019bbe198 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24211 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 06:46:53 +00:00
Chris Lattner
87ac972709 Allow globals to have an alignment specified. Switch to using isPowerOf2_32 
at Jim's request for the checking code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24210 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 06:46:28 +00:00
Chris Lattner
7d09ab6b88 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24208 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 06:34:34 +00:00
Chris Lattner
66db8e4aab factor optional alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24207 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 06:34:12 +00:00
Duraid Madina
21687e8f63 ask for 16-byte aligned jmpbufs. This should unbreak C++ on IA64 (and 
a bunch of other things) but is currently ignored by the code
generator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24206 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 04:29:30 +00:00
Chris Lattner
42ba6b4b88 Write/read allocation instruction alignment info to .bc files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24203 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 22:08:14 +00:00
Chris Lattner
6033716140 verify that alignments are always a power of 2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24200 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 21:57:54 +00:00
Chris Lattner
d91c32110a regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24199 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 21:54:23 +00:00
Chris Lattner
ac6e5c10db Verify that alignment amounts are a power of 2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24198 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 21:54:03 +00:00
Chris Lattner
9fad0b9974 fix printing the alignment directive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24197 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 21:20:34 +00:00
Nate Begeman
14b0529532 Add support alignment of allocation instructions. 
Add support for specifying alignment and size of setjmp jmpbufs.

No targets currently do anything with this information, nor is it presrved
in the bytecode representation.  That's coming up next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24196 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 09:21:28 +00:00
Chris Lattner
ae4664a9f2 add a case Nate sent me 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24195 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 08:57:56 +00:00
Chris Lattner
3b5f45042b Implement Transforms/TailCallElim/return-undef.ll, a trivial case 
that has been sitting in my inbox since May 18. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24194 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 08:21:11 +00:00
Chris Lattner
c812e5d6b8 Turn sdiv into udiv if both operands have a clear sign bit. This occurs 
a few times in crafty:

OLD:    %tmp.36 = div int %tmp.35, 8            ; <int> [#uses=1]
NEW:    %tmp.36 = div uint %tmp.35, 8           ; <uint> [#uses=0]
OLD:    %tmp.19 = div int %tmp.18, 8            ; <int> [#uses=1]
NEW:    %tmp.19 = div uint %tmp.18, 8           ; <uint> [#uses=0]
OLD:    %tmp.117 = div int %tmp.116, 8          ; <int> [#uses=1]
NEW:    %tmp.117 = div uint %tmp.116, 8         ; <uint> [#uses=0]
OLD:    %tmp.92 = div int %tmp.91, 8            ; <int> [#uses=1]
NEW:    %tmp.92 = div uint %tmp.91, 8           ; <uint> [#uses=0]

Which all turn into shrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24190 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 07:40:31 +00:00
Chris Lattner
11a49f2c0d Turn srem -> urem when neither input has their sign bit set. This triggers 
8 times in vortex, allowing the srems to be turned into shrs:

OLD:    %tmp.104 = rem int %tmp.5.i37, 16               ; <int> [#uses=1]
NEW:    %tmp.104 = rem uint %tmp.5.i37, 16              ; <uint> [#uses=0]
OLD:    %tmp.98 = rem int %tmp.5.i24, 16                ; <int> [#uses=1]
NEW:    %tmp.98 = rem uint %tmp.5.i24, 16               ; <uint> [#uses=0]
OLD:    %tmp.91 = rem int %tmp.5.i19, 8         ; <int> [#uses=1]
NEW:    %tmp.91 = rem uint %tmp.5.i19, 8                ; <uint> [#uses=0]
OLD:    %tmp.88 = rem int %tmp.5.i14, 8         ; <int> [#uses=1]
NEW:    %tmp.88 = rem uint %tmp.5.i14, 8                ; <uint> [#uses=0]
OLD:    %tmp.85 = rem int %tmp.5.i9, 1024               ; <int> [#uses=2]
NEW:    %tmp.85 = rem uint %tmp.5.i9, 1024              ; <uint> [#uses=0]
OLD:    %tmp.82 = rem int %tmp.5.i, 512         ; <int> [#uses=2]
NEW:    %tmp.82 = rem uint %tmp.5.i1, 512               ; <uint> [#uses=0]
OLD:    %tmp.48.i = rem int %tmp.5.i.i161, 4            ; <int> [#uses=1]
NEW:    %tmp.48.i = rem uint %tmp.5.i.i161, 4           ; <uint> [#uses=0]
OLD:    %tmp.20.i2 = rem int %tmp.5.i.i, 4              ; <int> [#uses=1]
NEW:    %tmp.20.i2 = rem uint %tmp.5.i.i, 4             ; <uint> [#uses=0]

it also occurs 9 times in gcc, but with odd constant divisors (1009 and 61)
so the payoff isn't as great.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24189 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 07:28:37 +00:00
Jim Laskey
a5e5bff8b8 Fix logic bug in finding retry slot in tally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24188 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-05 00:01:25 +00:00
Jim Laskey
54f997d23f Fix a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24187 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 18:26:02 +00:00
Duraid Madina
764fe71e12 oops, forgot to load GP for indirect calls, though the old code now commented 
out failed (e.g. methcall) - now the code compiles, though it's not quite
right just yet (tm) ;)

would fix this but it's 3am! :O


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24186 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 17:55:53 +00:00
Duraid Madina
b97cc99058 kill redundant SP/GP/RP save/restores across calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24183 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 10:01:10 +00:00
Duraid Madina
9f7290633a add support for loading bools 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24182 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 09:59:06 +00:00
Jim Laskey
7d090f3485 Scheduling now uses itinerary data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24180 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 04:05:35 +00:00
Duraid Madina
49fcc4006c fun with predicates! (add TRUNC i64->i1, AND i1 i1, fix XOR i1 i1) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24175 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-04 00:57:56 +00:00
Duraid Madina
0e5e0d14a8 add pattern to load constant 0 into a predicate reg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24164 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-03 10:09:32 +00:00
Chris Lattner
61bc60fc4f Fix a bug that prevented this pattern from matching 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24161 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-03 05:45:34 +00:00
Nate Begeman
5dc7e861f8 Fix a crash that Andrew noticed, and add a pair of braces to unfconfuse 
XCode's indenting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24159 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 18:42:59 +00:00
Andrew Lenharth
7bbff04f7f make this 64 bit clean, fixed test30 of /Regression/Transforms/InstCombine/add.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24158 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 18:35:40 +00:00
Chris Lattner
bad13eb189 Fix a QOI issue noticed by Markus F.X.J. Oberhumer. 
This fixes PR641


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24154 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 17:42:58 +00:00
Duraid Madina
056728f192 "fix" support for FP constants (this code asserts in the scheduler, 
though)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24152 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 07:32:59 +00:00
Duraid Madina
a2df2aee81 add F0 and F1 to the FP register class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24151 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 07:30:39 +00:00
Chris Lattner
cb2583e17d This works now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24150 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 06:49:37 +00:00
Duraid Madina
5966955445 add support for SELECT to TargetSelectionDAG.td, add support for 
selecting ints to IA64, and a few other ia64 bits and pieces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24147 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 02:37:18 +00:00
Duraid Madina
93856802ae add support for loading FP constants +0.0 and +1.0 to the dag isel, 
stop pretending -0.0 and -1.0 are machine constants


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24146 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 02:35:04 +00:00
Chris Lattner
7c22575e32 Fix a source of undefined behavior when dealing with 64-bit types. This 
may fix PR652.  Thanks to Andrew for tracking down the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24145 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-02 01:47:04 +00:00
Jim Laskey
6cee630070 Allow itineraries to be passed through the Target Machine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24139 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 20:06:59 +00:00
Duraid Madina
7a8ef3a0d4 heh, scheduling was easy? 
need to send chris, jim and sampo a box of fish each


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24135 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 05:49:08 +00:00
Duraid Madina
dc9549b52c FORTRAN!!! :( and other similarly unfortunate things mean that on ia64 
one sometimes needs to pass FP args in both FP *and* integer registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24134 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 05:46:16 +00:00
Duraid Madina
aba8457125 so tablegen was thinking I might want to convert FPs to predicates. 
clever little tablegen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24133 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 03:32:15 +00:00
Duraid Madina
e2fd9e2d9d add support for int->FP and FP->int ops, and add ia64 patterns for these 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24132 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 03:07:25 +00:00
Duraid Madina
d1eda6d155 add zeroextend predicate->integer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24131 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 01:29:55 +00:00
Chris Lattner
5b0ac99c96 Add a flag to enable a darwin linker optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24130 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 00:12:36 +00:00
Chris Lattner
bb69e39b5b Make constant pool entries use private labels. This is important when you're 
not compiling a whole program at a time :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24129 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 22:12:06 +00:00
Chris Lattner
306f6fefc9 Fix an iterator invalidation problem in code used by the -strip pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24124 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 18:42:37 +00:00
Chris Lattner
76ff2c7504 Limit the search depth of MaskedValueIsZero to 6 instructions, to avoid 
bad cases.  This fixes Markus's second testcase in PR639, and should
seal it for good.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24123 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 18:35:52 +00:00
Jim Laskey
5a608ddada 1. Embed and not inherit vector for NodeGroup. 
2. Iterate operands and not uses (performance.)

3. Some long pending comment changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24119 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 12:49:09 +00:00
Duraid Madina
363aff2f3c add FP compares and implicit register defs to the dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24118 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-31 01:42:11 +00:00
Chris Lattner
bf209489ad Significantly simplify this code and make it more aggressive. Instead of having 
a special case hack for X86, make the hack more general: if an incoming argument
register is not used in any block other than the entry block, don't copy it to
a vreg.  This helps us compile code like this:

%struct.foo = type { int, int, [0 x ubyte] }
int %test(%struct.foo* %X) {
        %tmp1 = getelementptr %struct.foo* %X, int 0, uint 2, int 100
        %tmp = load ubyte* %tmp1                ; <ubyte> [#uses=1]
        %tmp2 = cast ubyte %tmp to int          ; <int> [#uses=1]
        ret int %tmp2
}

to:

_test:
        lbz r3, 108(r3)
        blr

instead of:

_test:
        lbz r2, 108(r3)
        or r3, r2, r2
        blr

The (dead) copy emitted to copy r3 into a vreg for extra-block uses was
increasing the live range of r3 past the load, preventing the coallescing.

This implements CodeGen/PowerPC/reg-coallesce-simple.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24115 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 19:42:35 +00:00
Chris Lattner
a4176525cc Reduce the number of copies emitted as machine instructions by 
generating results in vregs that will need them.  In the case of something
like this:  CopyToReg((add X, Y), reg1024), we no longer emit code like
this:

   reg1025 = add X, Y
   reg1024 = reg 1025

Instead, we emit:

   reg1024 = add X, Y

Whoa! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24111 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 18:54:27 +00:00
Chris Lattner
c1d6f67e8e If the module has no t-t and the host is an alpha, default to using the Alpha BE 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24110 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 16:44:01 +00:00
Duraid Madina
5c2c64e567 fix some broken comparisons, this affected the Pattern isel too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24109 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 10:14:19 +00:00
Chris Lattner
b685af3e60 This is implemented 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24107 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 06:42:12 +00:00
Chris Lattner
3e6099b05f Codegen mul by negative power of two with a shift and negate. 
This implements test/Regression/CodeGen/PowerPC/mul-neg-power-2.ll,
producing:

_foo:
        slwi r2, r3, 1
        subfic r3, r2, 63
        blr

instead of:

_foo:
        mulli r2, r3, -2
        addi r3, r2, 63
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24106 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 06:41:49 +00:00
Chris Lattner
df14a04b5c Fix a problem that Nate noticed with LSR: 
When inserting code for an addrec expression with a non-unit stride, be
more careful where we insert the multiply.  In particular, insert the multiply
in the outermost loop we can, instead of the requested insertion point.

This allows LSR to notice the mul in the right loop, reducing it when it gets
to it.  This allows it to reduce the multiply, where before it missed it.

This happens quite a bit in the test suite, for example, eliminating 2
multiplies in art, 3 in ammp, 4 in apsi, reducing from 1050 multiplies to
910 muls in galgel (!), from 877 to 859 in applu, and 36 to 30 in bzip2.

This speeds up galgel from 16.45s to 16.01s, applu from 14.21 to 13.94s and
fourinarow from 66.67s to 63.48s.

This implements Transforms/LoopStrengthReduce/nested-reduce.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24102 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-30 06:24:33 +00:00
Chris Lattner
f519fe07e0 Make -time-passes output prettier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24096 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 16:45:02 +00:00
Duraid Madina
25d0a88eb8 add some FP stuff, some mix.* stuff, and constant pool support to the 
DAG instruction selector, which should be destroyed one day (in the pattern
isel also) since ia64 can pack any constant in the instruction stream


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24094 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 16:08:30 +00:00
Chris Lattner
9fefdb5d66 This pass is now obsolete since all targets have moved to the SelectionDAG 
infrastructure and the simple isels have been removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24090 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 05:33:46 +00:00
Chris Lattner
72fe0af68f remove reference to this pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24088 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 05:28:34 +00:00
Chris Lattner
eb99bd30e9 remove a dead file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24085 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 04:43:38 +00:00
Chris Lattner
5af401d5f1 Remove dead #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24083 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 04:41:30 +00:00
Chris Lattner
1462aa78c7 Now that instcombine does this xform, remove it from the -raise pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24082 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 04:40:23 +00:00
Chris Lattner
cfd65100c4 Pull some code out into a function, give it the ability to see through +. 
This allows us to turn code like malloc(4*x+4) -> malloc int, (x+1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24081 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 04:36:15 +00:00
Duraid Madina
274ecfb782 add shladd 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24080 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 04:13:40 +00:00
Chris Lattner
455fcc8d35 Remove a special case, allowing the general case to handle it. No functionality 
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24076 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-29 03:19:53 +00:00
Nate Begeman
167f1e2651 New case to handle someday 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24075 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 23:26:57 +00:00
Chris Lattner
7d7b96746c Don't emit "32" for unordered comparison 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24073 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 22:58:07 +00:00
Chris Lattner
ed048c067d add a hack to get code with ordered comparisons working. This hack is 
tracked as PR642


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24068 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 20:49:47 +00:00
Chris Lattner
6df2507121 add support for branch on ordered/unordered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24067 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 20:32:44 +00:00
Chris Lattner
f02a916d82 Do not globalize internal symbols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 18:44:07 +00:00
Chris Lattner
aee436bcc0 These are autogenerated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24063 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 18:26:52 +00:00
Duraid Madina
f2db9b88da DAG->DAG instruction selection for ia64! "hello world" works, not much else. 
use -enable-ia64-dag-isel to turn this on

TODO: delete lowering stuff from the pattern isel
    : get operations on predicate bits working
    : get other bits of pseudocode going
    : use sampo's mulh/mull-using divide-by-constant magic
    : *so* many patterns ("extr", "tbit" and "dep" will be fun :)
    : add FP
    : add a JIT!
    : get it working 100%

in short: this'll be happier in a couple of weeks, but it's here now so
the tester can make me feel guilty sooner.

OTHER: there are a couple of fixes to the pattern isel, in particular
making the linker happy with big blobs of fun like pypy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24058 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 17:46:35 +00:00
Chris Lattner
325231c925 Fix a bit of backwards logic that broke exptree and smg2000 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24056 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 16:27:35 +00:00
Chris Lattner
4bd4a54d57 remove dead stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24054 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 04:58:24 +00:00
Chris Lattner
a411bef105 Eliminate getClass, it is not needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24053 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 04:57:11 +00:00
Chris Lattner
0195910558 a bad case for bitfield insert 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24051 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-28 00:20:45 +00:00
Chris Lattner
108e902aeb Do not sink any instruction with side effects, including vaarg. This fixes 
PR640


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 17:13:11 +00:00
Chris Lattner
cbbc6b74e3 Fix #include order 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24044 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 16:34:00 +00:00
John Criswell
bd9d37026a Move some constant folding functions into LLVMAnalysis since they are used 
by Analysis and Transformation passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24038 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 16:00:10 +00:00
John Criswell
a115643357 Move some constant folding code shared by Analysis and Transform passes 
into the LLVMAnalysis library.
This allows LLVMTranform and LLVMTransformUtils to be archives and linked
with LLVMAnalysis.a, which provides any missing definitions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24036 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 15:54:34 +00:00
Chris Lattner
fe7f046de8 Fix DSE to not nuke dead stores unless they redundant store is the same 
VT as the killing one.  Fix fixes PR491


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24034 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 07:10:34 +00:00
Chris Lattner
0e026de6ac Fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24033 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 06:26:26 +00:00
Chris Lattner
e679288a30 Teach instcombine to promote stuff like (cast (malloc sbyte, 8*X) to int*) 
into: malloc int, (2*X)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24032 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 06:24:46 +00:00
Chris Lattner
8142b0a54b Promote cases like cast (malloc sbyte, 100) to int* into 
(malloc [25 x int]) directly without having to convert to
(malloc [100 x sbyte]) first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24031 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 06:12:00 +00:00
Chris Lattner
0ddac2a1c3 Minor change to this file to support obscure cases with constant array amounts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24030 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 05:53:56 +00:00
Chris Lattner
731d348166 Add a simple xform that is useful for bitfield operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24029 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-27 05:06:38 +00:00
John Criswell
e96a1a576b 1. Remove libraries no longer created from the list of libraries linked into the 
SparcV9 JIT.
2. Make LLVMTransformUtils a relinked object file and always link it before
   LLVMAnalysis.a.  These two libraries have circular dependencies on each
   other which creates problem when building the SparcV9 JIT.  This change
   fixes the dependency on all platforms problems with a minimum of fuss.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24023 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 20:35:13 +00:00
Andrew Lenharth
2012cc013c int comparison patterns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24020 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 18:44:45 +00:00
Chris Lattner
c60e6020c0 Fix some spello's pointed out by Gabor Greif 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24019 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 18:41:41 +00:00
Jim Laskey
2cbc207c76 Typo made worse x 2 - take 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24018 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 18:07:50 +00:00
Chris Lattner
85fd97dc88 Fix an assert compiling MallocBench/gs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24017 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 18:01:11 +00:00
Jim Laskey
ff2fcee846 Typo x 2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24016 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 17:50:22 +00:00
Andrew Lenharth
641b64aa4b Simplify instinfo, set random bits on more fp insts, and fix 1 opcode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24014 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 17:41:46 +00:00
Jim Laskey
581a8f79bc Give full control of subtarget features over to table generated code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24013 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 17:30:34 +00:00
Jim Laskey
f0c2be4d2b Add attribute name and type to SubtargetFeatures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24012 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 17:28:23 +00:00
Chris Lattner
e9f15e538a fold nested and's early to avoid inefficiencies in MaskedValueIsZero. This 
fixes a very slow compile in PR639.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24011 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 17:18:16 +00:00
Chris Lattner
1f426deade Add nodes for CondCodeSDNode and setcc, and add a bunch of pattern fragments 
to make it easy to use them.  This lets you write patterns like:

(set PRRC:$rd, (setne GPRC:$rS, imm:$SH))

and stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24009 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 17:00:25 +00:00
Nate Begeman
5cd61ce1be Add a note about some bitfield stuff we could be doing better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23994 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 23:50:02 +00:00
Nate Begeman
ae749a9bb5 Correctly Expand or Promote FP_TO_UINT based on the capabilities of the 
machine.  This allows us to generate great code for i32 FP_TO_UINT now on
targets with 64 bit extensions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23993 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 23:48:36 +00:00
Nate Begeman
b7f6ef12f6 Allow custom lowered FP_TO_SINT ops in the check for whether a larger 
FP_TO_SINT is preferred to a larger FP_TO_UINT.  This seems to be begging
for a TLI.isOperationCustom() helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23992 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 23:47:25 +00:00
Chris Lattner
6e61ca6fa7 autogen undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23991 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 21:03:41 +00:00
Chris Lattner
978982628a Add undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23990 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 21:03:14 +00:00
Chris Lattner
3075a4e94d Allow pseudos to have patterns, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23988 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 20:58:43 +00:00
Chris Lattner
9c73f095bb Autogen fsel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23987 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 20:55:47 +00:00
Chris Lattner
eb255f2b83 Expose the fextend on the DAG instead of doing it in the matcher 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23986 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 20:54:57 +00:00
Chris Lattner
e6115b370a Autogen a few new ppc-specific nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23985 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 20:41:46 +00:00
Chris Lattner
8ecedbe2c3 The dag isel generator generates this now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23984 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 20:36:10 +00:00
Chris Lattner
99ea9da872 Be a bit more paranoid about calling SelectNodeTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23982 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 20:26:41 +00:00
Chris Lattner
3393e80a06 Fix a couple of minor bugs. The first fixes povray, the second fixes things 
if the dag combiner isn't run


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23981 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 19:32:37 +00:00
Chris Lattner
a158eee313 Clear a bit in this file that was causing a miscompilation of 178.galgel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23980 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 18:57:30 +00:00
Jim Laskey
34bd5d5d87 Preparation of supporting scheduling info. Need to find info based on selected 
CPU.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23974 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 15:15:28 +00:00
Alkis Evlogimenos
e9c6d36377 Stop using deprecated types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23973 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-25 11:18:06 +00:00
Chris Lattner
08a6b3cf7e do not wrap this whole file in namespace llvm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23962 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 06:38:35 +00:00
Chris Lattner
39387a5c93 Handle allocations that, even after removing dead uses, still have more than 
one use (but one is a cast).  This handles the very common case of:

 X = alloc [n x byte]
 Y = cast X to somethingbetter
 seteq X, null

In order to avoid infinite looping when there are multiple casts, we only
allow this if the xform is strictly increasing the alignment of the
allocation.


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 2005-10-24 06:35:18 +00:00
Chris Lattner
18e78bb09e Fix a bug where we would 'promote' an allocation from one type to another 
where the second has less alignment required.  If we had explicit alignment
support in the IR, we could handle this case, but we can't until we do.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23960 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 06:26:18 +00:00
Chris Lattner
b53c2382a9 Before promoting a malloc type, remove dead uses. This makes instcombine 
more effective at promoting these allocations, catching them earlier in the
compile process.


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 2005-10-24 06:22:12 +00:00
Chris Lattner
b3f8397a3d Pull some code out into a function, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23958 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 06:03:58 +00:00
Chris Lattner
02d608bd5f Make this build with GCC 4.1, patch contributed by Vladimir A. Merzliakov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23956 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 04:51:35 +00:00
Chris Lattner
8a6cd98e96 Alkis agrees that that iterative scan allocator isn't going to be worked on 
in the future, remove it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23952 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 04:14:30 +00:00
Chris Lattner
f941a0fe6c Remove this pass, it is not useful 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23949 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:35:43 +00:00
Chris Lattner
d00a3cee80 Remove some beta code that no longer has an owner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23944 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:32:41 +00:00
Chris Lattner
a66459095c Do not build the ProfilePaths directory anymore 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23943 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:31:49 +00:00
Chris Lattner
f36aeedaa3 DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23940 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:26:13 +00:00
Chris Lattner
aa9b596c5d only build .a version of this library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23938 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:14:49 +00:00
Chris Lattner
e3242e2392 Only build .a file versions of these libraries, instead of .a and .o versions. 
This should speed up build times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23937 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:11:51 +00:00
Chris Lattner
635df00b02 There is no need to build an archive version of this library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23936 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:09:03 +00:00
Chris Lattner
11686f1c07 This file is hopelessly out of date 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23935 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:07:08 +00:00
Chris Lattner
b72bfd71aa Only build .a file versions of these libraries, instead of .a and .o versions. 
This should speed up build times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23934 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 02:05:35 +00:00
Chris Lattner
ab0ed3592b Only build .a file versions of these libraries, instead of .a and .o versions. 
This should speed up build times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23933 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 01:59:48 +00:00
Chris Lattner
492d4a9d84 Make sure that anything using the ADCE pass pulls in the UnifyFunctionExitNodes 
code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23931 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 01:40:23 +00:00
Chris Lattner
83753937a6 don't bother building the archive version of this library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23927 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 01:08:20 +00:00
Chris Lattner
4fb1b21b31 expose a ctor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23924 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 01:00:45 +00:00
Chris Lattner
6d796238b2 implement some prototypes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23920 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 00:38:38 +00:00
Chris Lattner
25d196880b move this to the analyze tool 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23918 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-24 00:27:36 +00:00
Chris Lattner
3db4b62c2f Fix a nasty bug that was causing miscompilation of global variables 
on big endian 32-bit targets in some cases (e.g. PPC).  This fixes several
PPC JIT failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23914 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 23:54:56 +00:00
Chris Lattner
667eeca19d Shrinkify to match llc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23912 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:39:01 +00:00
Chris Lattner
2224dcc88c Simplify this, matching changes in the tblgen emitter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23909 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:34:25 +00:00
Chris Lattner
8ec9f331d2 Simplify this due to changes in the tblgen side 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23908 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:33:22 +00:00
Chris Lattner
aa38be17c8 mark this as beta 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23906 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:23:45 +00:00
Chris Lattner
3e808a45b3 If a user requests help, give them help on both features and processors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23905 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:23:13 +00:00
Chris Lattner
ed465f5407 Autogen subtarget information from .td files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23904 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:15:34 +00:00
Chris Lattner
5882e40ded Add subtarget feature/processor defns to the .td file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23903 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:08:45 +00:00
Chris Lattner
c8d28890f6 rearrange things a bit so that instructions can use subtarget features in the 
future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23902 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:08:13 +00:00
Chris Lattner
f690e6f3f6 add a marker 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23901 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 22:07:20 +00:00
Chris Lattner
ffff6175ef add a note that Nate mentioned last week 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23898 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 21:44:59 +00:00
Chris Lattner
1171ff4fd7 Put some of my random notes somewhere public 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23897 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 19:52:42 +00:00
Chris Lattner
ba76c21858 Improve help output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23893 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 05:33:39 +00:00
Chris Lattner
2e1f823aed improve -help output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23892 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 05:28:51 +00:00
Chris Lattner
54195c1a9d Move static functions from .h file, reduce #includes, pass strings by const&, 
use LowercaseString from StringExtras.h, remove extraneous space from help
output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23891 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 05:26:26 +00:00
Jeff Cohen
66c5fd6c53 When a function takes a variable number of pointer arguments, with a zero 
pointer marking the end of the list, the zero *must* be cast to the pointer
type.  An un-cast zero is a 32-bit int, and at least on x86_64, gcc will
not extend the zero to 64 bits, thus allowing the upper 32 bits to be
random junk.

The new END_WITH_NULL macro may be used to annotate a such a function
so that GCC (version 4 or newer) will detect the use of un-casted zero
at compile time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23888 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 04:37:20 +00:00
Andrew Lenharth
8b7f14e970 Add several things. 
loads
branches
setcc
working calls
Global address
External addresses

now I can manage malloc calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23887 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 03:43:48 +00:00
Andrew Lenharth
2a2de66db2 add TargetExternalSymbol 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23886 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-23 03:40:17 +00:00
Andrew Lenharth
756fbeb905 Well, the Constant matching pattern works. Can't say much about calls or globals yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-22 22:06:58 +00:00
Chris Lattner
5ef4d8dd6d This file is entirely ifdef'd out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23882 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-22 19:37:08 +00:00
Chris Lattner
e9936d14b8 BuildSDIV and BuildUDIV only work for i32/i64, but they don't check that 
the input is that type, this caused a failure on gs on X86 last night.
Move the hard checks into Build[US]Div since that is where decisions like
this should be made.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23881 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-22 18:50:15 +00:00
Jim Laskey
5476b9bfce Add g3 back to the mix and reorder to irritate them anal folk. Actually, it's 
to group appropriately and provide cues to maintainers that the lists don't
need to be ordered.


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 2005-10-22 08:04:24 +00:00
Chris Lattner
4245f1d790 64-bit reg support should not be enabled by default, as support isn't complete. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23878 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 22:15:43 +00:00
Chris Lattner
c8597ca698 add a case missing from the dag combiner that exposed the failure on 
2005-10-21-longlonggtu.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23875 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 21:23:25 +00:00
Chris Lattner
dabb8291e8 Instead of aborting if not a case we can handle specially, break out and 
let the generic code handle it.  This fixes CodeGen/Generic/2005-10-21-longlonggtu.ll on ppc.

also, reindent this code


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 2005-10-21 21:17:10 +00:00
Jim Laskey
f5fc2cbd6b Plugin new subtarget backend into the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23870 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 19:05:19 +00:00
Chris Lattner
d2fc54edc4 silence a release mode warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23868 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 16:01:26 +00:00
Chris Lattner
aa51a484e1 Make the coallescer a bit smarter, allowing it to join more live ranges. 
For example, we can now join things like [0-30:0)[31-40:1)[52-59:2)
with [40:60:0) if the 52-59 range is defined by a copy from the 40-60 range.
The resultant range ends up being [0-30:0)[31-60:1).

This fires a lot through-out the test suite (e.g. shrinking bc from
19492 -> 18509 machineinstrs) though most gains are smaller (e.g. about
50 copies eliminated from crafty).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23866 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 06:49:50 +00:00
Chris Lattner
9e20d352c2 Fix LiveInterval::getOverlapingRanges to take things in the right order 
(an unused method).

Fix the merger so that it can merge ranges like this  [10:12)[16:40) with
[12:38) into [10:40) instead of bogus ranges.  This sort of input will be
possible for the merger coming shortly


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23865 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 06:41:30 +00:00
Nate Begeman
ae1641c39f Match rotate. This does actually match the rotates in an rc5 cipher, but I 
haven't seen it fire on our testsuite.


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 2005-10-21 06:36:18 +00:00
Chris Lattner
63ad7963e4 My previous patch was too conservative. Reject FP and void types, but do 
allow pointer types.


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 2005-10-21 05:45:41 +00:00
Nate Begeman
d5ce204c5f Don't generate operations that aren't yet supported 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23858 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 01:52:45 +00:00
Nate Begeman
0b2973aef2 Kill some now-dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23857 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 01:52:20 +00:00
Nate Begeman
4d38567689 Fix a typo in the dag combiner, so that this can work on i64 targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23856 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 01:51:45 +00:00
Andrew Lenharth
fe9234db9b byte zap not immediate goodness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23855 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 01:24:05 +00:00
Nate Begeman
405e3ecb56 Invert the TargetLowering flag that controls divide by consant expansion. 
Add a new flag to TargetLowering indicating if the target has really cheap
  signed division by powers of two, make ppc use it.  This will probably go
  away in the future.
Implement some more ISD::SDIV folds in the dag combiner
Remove now dead code in the x86 backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23853 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-21 00:02:42 +00:00
Andrew Lenharth
1f347a318c Inst cleanup. As a bonus, operands are in the correct order for cmovs. Expect new stuff to pass in the JIT tonight 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23852 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 23:58:36 +00:00
Chris Lattner
eae6d648da Use a literal to define ineg instead of immzero 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23851 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 23:30:37 +00:00
Chris Lattner
cef6010c64 Fix a conditional so we don't access past the end of the range. Thanks to 
Andrew for bringing this to my attn.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23850 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 22:50:10 +00:00
Andrew Lenharth
964b6aacb4 added a few 1 operand form stuff. Seems to break regalloc on alpha. sigh 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23849 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 19:39:24 +00:00
Andrew Lenharth
d684e1a64d add cttz and ctpop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23848 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 19:38:11 +00:00
Nate Begeman
c6a454e8d5 Fix a couple bugs in the const div stuff where we'd generate MULHS/MULHU 
for types that aren't legal, and fail a divisor is less than zero
comparison, which would cause us to drop a subtract.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23846 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 17:45:03 +00:00
Chris Lattner
f75f2a0a02 don't use llabs with apparently VC++ doesn't have 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23845 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 17:01:00 +00:00
Chris Lattner
8317e12cef Fix order of eval problem from when I refactored this into a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23844 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 16:56:40 +00:00
Andrew Lenharth
892ade722a Sounds good, finish the intop conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23843 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 14:42:48 +00:00
Nate Begeman
12a923408c Add some more patterns for i64 on ppc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23842 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 07:51:08 +00:00
Chris Lattner
b0fa11ca41 add a new method, play around with some code. 
Fix a *bug* in the extendIntervalEndTo method.  In particular, if adding
[2:10) to an interval containing [0:2),[10:30), we produced [0:10),[10,30).
Which is not the most smart thing to do.  Now produce [0:30).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23841 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 07:39:25 +00:00
Chris Lattner
f5ce2678f6 Refactor some code, pulling it out into a function. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23839 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 06:06:30 +00:00
Chris Lattner
1e9f3af561 Do NOT touch FP ops with LSR. This fixes a testcase Nate sent me from an 
inner loop like this:

LBB_RateConvertMono8AltiVec_2:  ; no_exit
        lis r2, ha16(.CPI_RateConvertMono8AltiVec_0)
        lfs f3, lo16(.CPI_RateConvertMono8AltiVec_0)(r2)
        fmr f3, f3
        fadd f0, f2, f0
        fadd f3, f0, f3
        fcmpu cr0, f3, f1
        bge cr0, LBB_RateConvertMono8AltiVec_2  ; no_exit

to an inner loop like this:

LBB_RateConvertMono8AltiVec_1:  ; no_exit
        fsub f2, f2, f1
        fcmpu cr0, f2, f1
        fmr f0, f2
        bge cr0, LBB_RateConvertMono8AltiVec_1  ; no_exit

Doh! good catch!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23838 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 04:47:10 +00:00
Chris Lattner
ae4be981b1 Add some pattern fragments to simplify the repetitive parts of the patterns 
for some common ops and use them for a few examples.  Andrew, if you like
this, feel free to convert the rest over, if you hate it, feel free to
revert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23837 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 04:21:06 +00:00
Chris Lattner
d7cc4c407d simplify this a bit by using immediates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23836 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 03:57:03 +00:00
Nate Begeman
6957523b9d Move the target constant divide optimization up into the dag combiner, so 
that the nodes can be folded with other nodes, and we can not duplicate
code in every backend.  Alpha will probably want this too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23835 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 02:15:44 +00:00
Andrew Lenharth
d97591a961 forgot this one 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23833 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 00:29:02 +00:00
Andrew Lenharth
4907d22a90 ret 0; works, not much else 
still lots of uglyness.
Maybe calls will come soon.
Fixing the return value of things will be necessary to make alpha work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23832 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-20 00:28:31 +00:00
John Criswell
9811ea4567 This fixes PR638: 
Regression/CodeGen/Generic/2004-02-08-UnwindSupport.llx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23831 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 20:07:15 +00:00
Jim Laskey
538421411a Added InstrSchedClass to each of the PowerPC Instructions. 
Note that when adding new instructions that you should refer to the table at the
bottom of PPCSchedule.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23830 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 19:51:16 +00:00
Nate Begeman
2d5aff761d Write patterns for the various shl and srl patterns that don't involve 
doing something clever.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23824 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 18:42:01 +00:00
Jim Laskey
0de8796e68 Push processor descriptions to the top of target and add command line info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23820 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 13:34:52 +00:00
Chris Lattner
f6cd147471 now that tblgen is smarter, use integers directly. This should help Andrew too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23818 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 04:32:04 +00:00
Chris Lattner
14c09b81ea teach ppc backend these are copies 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23813 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 01:50:36 +00:00
Chris Lattner
8be1fa5dc5 Convert these cases to patterns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23811 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 01:38:02 +00:00
Nate Begeman
8d94832394 Woo, it kinda works. We now generate this atrociously bad, but correct, 
code for long long foo(long long a, long long b) { return a + b; }

_foo:
        or r2, r3, r3
        or r3, r4, r4
        or r4, r5, r5
        or r5, r6, r6
        rldicr r2, r2, 32, 31
        rldicl r3, r3, 0, 32
        rldicr r4, r4, 32, 31
        rldicl r5, r5, 0, 32
        or r2, r3, r2
        or r3, r5, r4
        add r4, r3, r2
        rldicl r2, r4, 32, 32
        or r4, r4, r4
        or r3, r2, r2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23809 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 01:12:32 +00:00
Chris Lattner
e5468305a0 apply some tblgen majik to simplify the X register definitions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23805 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 00:17:55 +00:00
Nate Begeman
5dc897b0e4 Teach Legalize how to do something with EXTRACT_ELEMENT when the type of 
the pair of elements is a legal type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23804 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 00:06:56 +00:00
Nate Begeman
da32c9eed6 Make a new reg class for 64 bit regs that aliases the 32 bit regs. This 
will have to tide us over until we get real subreg support, but it prevents
the PrologEpilogInserter from spilling 8 byte GPRs on a G4 processor.

Add some initial support for TRUNCATE and ANY_EXTEND, but they don't
currently work due to issues with ScheduleDAG.  Something wll have to be
figured out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23803 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-19 00:05:37 +00:00
Nate Begeman
4a95945fa5 Add the ability to lower return instructions to TargetLowering. This 
allows us to lower legal return types to something else, to meet ABI
requirements (such as that i64 be returned in two i32 regs on Darwin/ppc).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23802 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 23:23:37 +00:00
Chris Lattner
d222f6ab67 Fix Generic/2005-10-18-ZeroSizeStackObject.ll by not requesting a zero 
sized stack object if either the array size or the type size is zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23801 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 22:14:06 +00:00
Chris Lattner
2dfa8192ab remove hack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23797 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 22:11:42 +00:00
Jim Laskey
21f587ca24 Simple edits; remove unimplimented cases and clarify long haul SLU cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23788 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 16:59:23 +00:00
Chris Lattner
841d12d9ac Fix the JIT encoding of LWA, LD, STD, and STDU. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23787 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 16:51:22 +00:00
Jim Laskey
076866c50f Checking in first round of scheduling tablegen files. Not tied in as yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23786 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 16:23:40 +00:00
Chris Lattner
3d8df55fed add a case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23785 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 06:30:51 +00:00
Chris Lattner
a27ea769eb Add an option to this pass. If it is set, we are allowed to internalize 
all but main.  If it's not set, we can still internalize, but only if an
explicit symbol list is provided.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23783 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 06:29:22 +00:00
Chris Lattner
40c62d5069 Fold (select C, load A, load B) -> load (select C, A, B). This happens quite 
a lot throughout many programs.  In particular, specfp triggers it a bunch for
constant FP nodes when you have code like  cond ? 1.0 : -1.0.

If the PPC ISel exposed the loads implicit in pic references to external globals,
we would be able to eliminate a load in cases like this as well:

%X = external global int
%Y = external global int
int* %test4(bool %C) {
        %G = select bool %C, int* %X, int* %Y
        ret int* %G
}

Note that this breaks things that use SrcValue's (see the fixme), but since nothing
uses them yet, this is ok.

Also, simplify some code to use hasOneUse() on an SDOperand instead of hasNUsesOfValue directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23781 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 06:04:22 +00:00
Nate Begeman
9d2b817fcb Do the right thing and enable 64 bit regs under the control of a subtarget 
option.  Currently the only way to enable this is to specify the
64bitregs mattr flag.  It is never enabled by default on any config yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23779 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 00:56:42 +00:00
Nate Begeman
1d9d7427c4 First bits of 64 bit PowerPC stuff, currently disabled. A lot of this is 
purely mechanical.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23778 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 00:28:58 +00:00
Nate Begeman
a0e221dc75 Implement some feedback from Chris re: constant canonicalization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23777 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 00:28:13 +00:00
Nate Begeman
419f8b62f7 Legalize BUILD_PAIR appropriately for upcoming 64 bit PowerPC work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23776 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 00:27:41 +00:00
Nate Begeman
11af4eaa6d fold fmul X, +2.0 -> fadd X, X; 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23774 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-17 20:40:11 +00:00
Chris Lattner
8532cf6258 Make this work for FP constantexprs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23773 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-17 20:18:38 +00:00
Chris Lattner
5e678e03b7 Oops, X+0.0 isn't foldable, but X+-0.0 is. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23772 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-17 17:56:38 +00:00
Chris Lattner
560a17d3bc relax this a bit, as we only support the default rounding mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23771 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-17 17:49:32 +00:00
Chris Lattner
854077d3a5 add a trivial fold 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23764 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-17 01:07:11 +00:00
Nate Begeman
21e463b2bf More PPC32 -> PPC changes, as well as merging some classes that were 
redundant after the change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23759 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-16 05:39:50 +00:00
Chris Lattner
750dbd5950 Fix this logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23756 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 22:35:40 +00:00
Chris Lattner
85d63bbff7 Add a case we were missing that was causing us to fail CodeGen/PowerPC/rlwinm.ll:test3 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23755 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 22:18:08 +00:00
Nate Begeman
34f342e36f Remove some dead code now that the dag combiner exists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 22:08:02 +00:00
Chris Lattner
4cb5a1b896 Remove some dead code: the ORI/ORIS cases are autogen'd. This makes 
SelectIntImmediateExpr dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23753 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 22:06:18 +00:00
Chris Lattner
de123822e5 prune #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23752 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 21:58:54 +00:00
Chris Lattner
75c9f67370 These instructions are now autogenerated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23751 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 21:44:56 +00:00
Chris Lattner
e0b2e6372f Add a pattern for FSQRTS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23750 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 21:44:15 +00:00
Chris Lattner
651dea74f6 remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23749 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 21:40:12 +00:00
Chris Lattner
8136cdae60 Use getExtLoad here instead of getNode, as extloads produce two values. This 
fixes a legalize failure on SPASS for itanium.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23747 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 20:24:07 +00:00
Chris Lattner
d242419e17 remove broken SRA/rlwimi case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23746 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-15 19:04:48 +00:00
Chris Lattner
16e71f2f70 Rename PPC32*.h to PPC*.h 
This completes the grand PPC file renaming


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23745 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:59:06 +00:00
Chris Lattner
b9459b731a Merge PPCJITInfo.h and PPC32JITInfo.h. Note that the PowerPCJITInfo 
and PPC32JITInfo classes should be merged.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23744 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:53:41 +00:00
Chris Lattner
2668959b88 Rename PowerPC*.h to PPC*.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23743 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:51:18 +00:00
Chris Lattner
26bd0d48a1 Rename PowerPCInstrBuilder.h -> PPC* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23742 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:45:43 +00:00
Chris Lattner
ec4b73cb09 Nuke the PowerPCTargetMachine.h header. Note that the PowerPCTargetMachine 
still should be merged into the PPC32TargetMachine class


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23741 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:44:05 +00:00
Chris Lattner
f379997adc Rename PowerPC*.td -> PPC*.td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23740 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:40:39 +00:00
Chris Lattner
f1ed100bc4 These are dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23739 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:38:51 +00:00
Chris Lattner
4c7b43b43f Eliminate PowerPC.td and PPC32.td, consolidating them into PPC.td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23738 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:37:35 +00:00
Chris Lattner
e87bc1f3a8 Like the comment says... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23737 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 22:48:24 +00:00
Chris Lattner
617742b1b8 Nuke PowerPCInstrFormats.h, its contents are dead. Remove the definitions 
from the .td file that correspond to it


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23736 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 22:44:13 +00:00
Nate Begeman
14e2cf62f4 Properly split f32 and f64 into separate register classes for scalar sse fp 
fixing a bunch of nasty hackery


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23735 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 22:06:00 +00:00
Nate Begeman
e0de44adba Remove an unnecsesary file. PPC32 and PPC64 share architected registers. 
We will decide with subtarget support whether we ever use an i64 register
class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23734 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 18:58:46 +00:00
Chris Lattner
444215dddc add the integer truncate/extension operations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23733 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 06:40:20 +00:00
Chris Lattner
3f31d4304c These are now autogenerated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23731 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 06:26:29 +00:00
Chris Lattner
7cb6491a0d Add patterns for FP round/extend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23727 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 04:55:50 +00:00
Chris Lattner
13664a6194 add a new SDTCisOpSmallerThanOp type constraint, and implement fround/fextend in terms of it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23726 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 04:55:10 +00:00
Nate Begeman
216def8ecf fold sext_in_reg, sext_in_reg where both have the same VT. This was 
popping up in Fourinarow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23722 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 01:29:07 +00:00
Chris Lattner
b4871ad694 Allow $ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23721 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 01:28:34 +00:00
Nate Begeman
5054f16212 Relax the checking on zextload generation a bit, since as sabre pointed out 
you could be AND'ing with the result of a shift that shifts out all the
bits you care about, in addition to a constant.

Also, move over an add/sub_parts fold from legalize to the dag combiner,
where it works for things other than constants.  Woot!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23720 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 01:12:21 +00:00
Chris Lattner
24edbb7a6c Fix the trunc(load) case, finally allowing crafty and povray to pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23718 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 22:10:05 +00:00
Chris Lattner
f98840531a Fix some bugs in (sext (load x)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23717 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 21:52:31 +00:00
Chris Lattner
9ad8481cfb When ExpandOp'ing a [SZ]EXTLOAD, make sure to remember that the chain 
is also legal.  Add support for ExpandOp'ing raw EXTLOADs too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23716 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 21:44:47 +00:00
Chris Lattner
4c8f8f0481 Implement PromoteOp for *EXTLOAD, allowing MallocBench/gs to Legalize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23715 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 20:07:41 +00:00
Nate Begeman
bfd65a05c9 Fix the remaining DAGCombiner issues pointed out by sabre. This should fix 
the remainder of the failures introduced by my patch last night.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23714 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 18:34:58 +00:00
Chris Lattner
67a44cd3aa Fix a minor bug in the dag combiner that broke pcompress2 and some other 
tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23713 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 18:16:34 +00:00
Nate Begeman
144ff660e6 Add support to Legalize for expanding i64 sextload/zextload into hi and lo 
parts. This should fix the crafty and signed long long unit test failure
on x86 last night.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23711 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 17:15:37 +00:00
Jim Laskey
53c523c00e Inhibit instructions from being pushed before function calls. This will 
minimize unnecessary spilling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23710 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 16:44:00 +00:00
Nate Begeman
ded4963ab9 Move some Legalize functionality over to the DAGCombiner where it belongs. 
Kill some dead code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23706 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-13 03:11:28 +00:00
Nate Begeman
765784ad76 Fix a potential bug with two combine-to's back to back that chris pointed 
out, where after the first CombineTo() call, the node the second CombineTo
wishes to replace may no longer exist.

Fix a very real bug with the truncated load optimization on little endian
targets, which do not need a byte offset added to the load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23704 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-12 23:18:53 +00:00
Nate Begeman
3df4d525c5 More cool stuff for the dag combiner. We can now finally handle things 
like turning:

_foo:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        rlwinm r3, r2, 0, 16, 31
        blr

into
_foo:
        fctiwz f0,f1
        stfd f0,-8(r1)
        lhz r3,-2(r1)
        blr

Also removed an unncessary constraint from sra -> srl conversion, which
should take care of hte only reason we would ever need to handle sra in
MaskedValueIsZero, AFAIK.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23703 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-12 20:40:40 +00:00
Jim Laskey
fab66f6900 Finally committing to the new scheduler. Still -sched=none by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23702 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-12 18:29:35 +00:00
Jim Laskey
851a22db2b Added graphviz/gv support for MF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23700 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-12 12:09:05 +00:00
Chris Lattner
d6155e96f7 Fix (hopefully the last) issue where LSR is nondeterminstic. When pulling 
out CSE's of base expressions it could build a result whose order was
nondet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23698 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-11 18:41:04 +00:00
Chris Lattner
7b445c521b Fix another problem where LSR was being nondeterminstic. Also remove elements 
from the end of a vector instead of the beginning


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23697 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-11 18:30:57 +00:00
Chris Lattner
b4dd1b86fa Fix another lsr-is-nondeterministic case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23695 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-11 18:17:57 +00:00
Chris Lattner
a179ab3016 Fix a powerpc crash on CodeGen/Generic/llvm-ct-intrinsics.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23694 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-11 17:56:34 +00:00
Chris Lattner
05b57433e6 Add a canonicalization that got lost, fixing PowerPC/fold-li.ll:SUB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23693 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-11 06:07:15 +00:00
Chris Lattner
04ecf6d65f clean up some corner cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23692 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 23:00:08 +00:00
Chris Lattner
87514ca04c Implement trivial DSE. If two stores are neighbors and store to the same 
location, replace them with a new store of the last value.  This occurs
in the same neighborhood in 197.parser, speeding it up about 1.5%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23691 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 22:31:19 +00:00
Chris Lattner
01a2202138 Add support for CombineTo, allowing the dag combiner to replace nodes with 
multiple results.

Use this support to implement trivial store->load forwarding, implementing
CodeGen/PowerPC/store-load-fwd.ll.  Though this is the most simple case and
can be extended in the future, it is still useful.  For example, it speeds
up 197.parser by 6.2% by avoiding an LSU reject in xalloc:

        stw r6, lo16(l5_end_of_array)(r2)
        addi r2, r5, -4
        stwx r5, r4, r2
-       lwzx r5, r4, r2
-       rlwinm r5, r5, 0, 0, 30
        stwx r5, r4, r2
        lwz r2, -4(r4)
        ori r2, r2, 1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23690 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 22:04:48 +00:00
Nate Begeman
07ed417df2 Teach the DAGCombiner several new tricks, teaching it how to turn 
sext_inreg into zext_inreg based on the signbit (fires a lot), srem into
urem, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23688 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 21:26:48 +00:00
Chris Lattner
d739075cbb Fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23686 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 16:52:03 +00:00
Chris Lattner
bba9aa3475 Add ISD::ADD to MaskedValueIsZero 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23685 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 16:51:40 +00:00
Chris Lattner
3892560680 This function is now dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23684 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 16:49:22 +00:00
Chris Lattner
af21d55aee Enable Nate's excellent DAG combiner work by default. This allows the 
removal of a bunch of ad-hoc and crufty code from SelectionDAG.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23682 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 16:47:10 +00:00
Chris Lattner
7b1fe15de0 These definitions have been moved to common code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23681 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 06:01:00 +00:00
Chris Lattner
17f2cf05b3 Pull DAG ISel generation nodes out of the PowerPC backend to where they 
can be used by other targets.  For those targets that want to use it,
have at.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23680 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-10 06:00:30 +00:00
Chris Lattner
a19cea061e add a todo for something I noticed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23679 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 22:59:08 +00:00
Chris Lattner
ee899e6bfc (X & Y) & C == 0 if either X&C or Y&C are zero 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23678 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 22:12:36 +00:00
Chris Lattner
5fb0deb43a Make MaskedValueIsZero a bit more aggressive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23677 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 22:08:50 +00:00
Andrew Lenharth
fa08fb2c78 This seems useful from the original patch that added the function. If there is a reason it is not useful on a RISC type target, let me know and I will pull it out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23676 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 20:11:35 +00:00
Chris Lattner
60de63d0b6 Fix funky xcode indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23674 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 06:36:35 +00:00
Chris Lattner
a18af06360 Hrm, you didn't see this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23673 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 06:24:02 +00:00
Chris Lattner
7305ae28df Fix a source of non-determinism in the backend: the order of processing 
IV strides dependend on the pointer order of the strides in memory.
Non-determinism is bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23672 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 06:20:55 +00:00
Chris Lattner
089c25ccb3 When emiting a CopyFromReg and the source is already a vreg, do not bother 
creating a new vreg and inserting a copy: just use the input vreg directly.

This speeds up the compile (e.g. about 5% on mesa with a debug build of llc)
by not adding a bunch of copies and vregs to be coallesced away.  On mesa,
for example, this reduces the number of intervals from 168601 to 129040
going into the coallescer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23671 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 05:58:56 +00:00
Chris Lattner
65a419a104 Disable formation of rlwinm instructions from SRA bases. This fixes 
the 177.mesa failure from last night, and fixes the
CodeGen/PowerPC/2005-10-08-ArithmeticRotate.ll regression test I added.
If this code cannot be fixed, it should be removed for good, but I'll leave
it to Nate to decide its fate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23670 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-09 05:36:17 +00:00
Nate Begeman
7d47a61496 Remove another unused file. Preparing for the great "enable i64 on ppc32" 
merge, and using subtarget info for ptr size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23668 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-08 01:32:34 +00:00
Nate Begeman
02f77d1e83 Remove a file that is no longer used 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23666 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-08 01:21:27 +00:00
Nate Begeman
f845b4563a Lo and behold, the last bits of SelectionDAG.cpp have been moved over. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23665 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-08 00:29:44 +00:00
Chris Lattner
cf01a70550 When preselecting, favor things that have low depth to select first. This 
is faster and uses less stack space.  This reduces our stack requirement
enough to compile sixtrack, and though it's a hack, should be enough until
we switch to iterative isel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23664 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 22:10:27 +00:00
Chris Lattner
9a9719eea1 remove debugging code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23663 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 15:31:26 +00:00
Chris Lattner
c4ced268d8 implement CodeGen/PowerPC/div-2.ll:test2-4 by propagating zero bits through 
C-X's


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23662 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 15:30:32 +00:00
Chris Lattner
6c4dad0b8b fix indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23660 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 06:37:02 +00:00
Chris Lattner
094c8fcd14 Turn sdivs into udivs when we can prove the sign bits are clear. This 
implements CodeGen/PowerPC/div-2.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23659 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 06:10:46 +00:00
Jeff Cohen
68d98e0bdc Remove useless variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23656 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 05:28:29 +00:00
Chris Lattner
71abaab1d2 add a hack to work around broken VC++ scoping rules. Thx to JeffC for pointing 
this out to me


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23655 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 05:23:36 +00:00
Chris Lattner
eb5d47d99d Fix a CQ regression from my patch to split F32/F64 into seperate register 
classes on PPC.  We were emitting fmr instructions to do fp extensions, which
weren't getting coallesced.  This fixes Regression/CodeGen/PowerPC/fpcopy.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23654 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 05:00:52 +00:00
Chris Lattner
7a7c979ddd Fix CodeGen/Generic/bool-to-double.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23652 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-07 04:50:48 +00:00
Chris Lattner
6a16f6a14f Pull out Call, reducing stack frame size from 6032 bytes to 5184 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23650 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 19:07:45 +00:00
Chris Lattner
222adac30a Pull out setcc, this reduces stack frame size from 7520 to 6032 bytes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23649 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 19:03:35 +00:00
Chris Lattner
2b63e4c5e2 Pull two more methods out, reducing stack frame size from 8224 -> 7520 bytes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23648 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 18:56:10 +00:00
Chris Lattner
bd937b98f4 Add a recursive-iterative hybrid stage to attempt to reduce stack space, this 
helps but not enough.

Start pulling cases out of PPC32DAGToDAGISel::Select.  With GCC 4, this function
required 8512 bytes of stack space for each invocation (GCC 3 required less
than 700 bytes).  Pulling this first function out gets us down to 8224.  More
to come :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23647 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 18:45:51 +00:00
Chris Lattner
cf5c79b34f silence a bogus GCC warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23646 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 17:39:10 +00:00
Chris Lattner
8a61a7524a Fix the LLC regressions on X86 last night. In particular, when undoing 
previous copy elisions and we discover we need to reload a register, make
sure to use the regclass of the original register for the reload, not the
class of the current register.  This avoid using 16-bit loads to reload 32-bit
values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23645 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 17:19:06 +00:00
Andrew Lenharth
f3fb71bfd7 This is suppose to work now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23644 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 16:54:29 +00:00
Andrew Lenharth
d5613debf9 remove VAX compatibility instruction, we will never use this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23643 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 16:53:32 +00:00
Chris Lattner
32fca00a23 Make the legalizer completely non-recursive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23642 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-06 01:20:27 +00:00
Nate Begeman
0558f61b0c Let the combiner handle more cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23641 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 21:44:43 +00:00
Nate Begeman
829cb81806 Remove some bad code from Legalize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23640 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 21:44:10 +00:00
Nate Begeman
e17daebb30 Check in some more DAGCombiner pieces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23639 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 21:43:42 +00:00
Chris Lattner
22480c4350 Fix a bug in the local spiller, where we could take code like this: 
store r12 -> [ss#2]
  R3 = load [ss#1]
  use R3
  R3 = load [ss#2]
  R4 = load [ss#1]

and turn it into this code:

  store R12 -> [ss#2]
  R3 = load [ss#1]
  use R3
  R3 = R12
  R4 = R3    <- oops!

The problem was that promoting R3 = load[ss#2] to a copy missed the fact that
the instruction invalidated R3 at that point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23638 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 18:30:19 +00:00
Chris Lattner
f5c6e6b745 silence some warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23637 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 17:15:09 +00:00
Chris Lattner
3ea0b47f81 implement visitBR_CC so that PowerPC/inverted-bool-compares.ll passes 
with the dag combiner.  This speeds up espresso by 8%, reaching performance
parity with the dag-combiner-disabled llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23636 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 06:47:48 +00:00
Chris Lattner
ad13715ed4 fix some pastos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23635 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 06:37:22 +00:00
Chris Lattner
9503859c54 Add a new HandleNode class, which is used to handle (haha) cases in the 
dead node elim and dag combiner passes where the root is potentially updated.
This fixes a fixme in the dag combiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23634 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 06:35:28 +00:00
Chris Lattner
5c46f74ec7 Implement the code for PowerPC/inverted-bool-compares.ll, even though it 
that testcase still does not pass with the dag combiner.  This is because
not all forms of br* are folded yet.

Also, when we combine a node into another one, delete the node immediately
instead of waiting for the node to potentially come up in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23632 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 06:11:08 +00:00
Chris Lattner
d48050aa15 make sure that -view-isel-dags is the input to the isel, not the input to 
the second phase of dag combining


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23631 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 06:09:10 +00:00
Chris Lattner
91559026d3 Fix a crash compiling Olden/tsp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23630 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-05 04:45:43 +00:00
Chris Lattner
a1e3f54396 refactor a bit of code. 
When moving constant entries in 'Map' if the entry is the representative
constant for the abstractypemap, make sure to update it as well.  This
fixes the bcreader failures from last night on several C++ apps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23628 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 21:35:50 +00:00
Chris Lattner
23ec01fcc3 Minor speedup to avoid array searches given a Use*. This speeds up bc reading 
of the python test from 1:00 to 54s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23627 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 18:47:09 +00:00
Chris Lattner
d0ff1adbdb Change the signature of replaceUsesOfWithOnConstant. The bool was always 
true dynamically.  Finally, pass the Use* that replaceAllUsesWith has into
the method for future use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23626 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 18:13:04 +00:00
Chris Lattner
a55b30a225 For large constants (e.g. arrays and structs with many elements) just 
creating the keys and doing comparisons to index into 'Map' takes a lot
of time.  For these large constants, keep an inverse map so that 'remove'
and move operations are much faster.

This speeds up a release build of the bc reader on Eric's nasty python
bytecode file from 1:39 to 1:00s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23624 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 17:48:46 +00:00
Chris Lattner
d7a3fc6819 minor cleanup/fastpath for the bcreader. This speeds up the bcreader 
from 1:41 -> 1:39 on the large python .bc file in a release build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23623 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 16:52:46 +00:00
Jim Laskey
9d528dc2b4 Reverting to version - until problem isolated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23622 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 16:41:51 +00:00
Chris Lattner
ccc8ed7bb5 Add a forward def 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23621 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 05:09:20 +00:00
Nate Begeman
1aa1972c63 Fix some faulty logic in the libcall inserter. 
Since calls return more than one value, don't bail if one of their uses
happens to be a node that's not an MVT::Other when following the chain
from CALLSEQ_START to CALLSEQ_END.

Once we've found a CALLSEQ_START, we can just return; there's no need to
tail-recurse further up the graph.

Most importantly, just because something only has one use doesn't mean we
should use it's one use to follow from start to end.  This faulty logic
caused us to follow a chain of one-use FP operations back to a much earlier
call, putting a cycle in the graph from a later start to an earlier end.

This is a better fix that reverting to the workaround committed earlier
today.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23620 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 02:10:55 +00:00
Chris Lattner
c182a88aec implement the struct version of the array speedup, speeding up the 
testcase a bit more from 1:48 -> 1.40.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23619 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 01:17:50 +00:00
Chris Lattner
ab55698349 Fix DemoteRegToStack on an invoke. This fixes PR634. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23618 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 00:44:01 +00:00
Nate Begeman
27d404ccd1 Add back a workaround that fixes some breakages from chris's last change. 
Neither of us have yet figured out why this code is necessary, but stuff
breaks if its not there.  Still tracking this down...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23617 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-04 00:37:37 +00:00
Chris Lattner
7a66e686fe Clean up the code a bit. Use isInstructionTriviallyDead to be more aggressive 
and more correct than use_empty().  This fixes PR635 and
SimplifyCFG/2005-10-02-InvokeSimplify.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23616 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 23:43:43 +00:00
Chris Lattner
cea141f1d1 Change ConstantArray::replaceUsesOfWithOnConstant to attempt to update 
constant arrays in place instead of reallocating them and replaceAllUsesOf'ing
the result.  This speeds up a release build of the bcreader from:

136.987u 120.866s 4:24.38
to
49.790u 49.890s 1:40.14

... a 2.6x speedup parsing a large python bc file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23614 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 22:51:37 +00:00
Chris Lattner
5cbade9f83 move some methods, no other changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23613 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 21:58:36 +00:00
Chris Lattner
dfdd6c5d7a minor microoptimizations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23612 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 21:56:24 +00:00
Chris Lattner
eebac5fee6 Use a map to cache the ModuleType information, so we can do logarithmic 
lookups instead of linear time lookups.  This speeds up bc parsing of a
large file from

137.834u 118.256s 4:27.96
to
132.611u 114.436s 4:08.53

with a release build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23611 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 21:26:53 +00:00
Jim Laskey
8ba732bb1c Refactor gathering node info and emission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23610 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 12:30:32 +00:00
Chris Lattner
6db0756f02 clean up this code a bit, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23609 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 07:22:07 +00:00
Chris Lattner
8ca02914e5 Speed up the asm printer a lot by not printing formatted LLVM asm output 
for globals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23608 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 07:08:36 +00:00
Chris Lattner
53a79aaae9 Break the body of the loop out into a new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23606 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 04:47:08 +00:00
Chris Lattner
5e8ca66914 Make IVUseShouldUsePostIncValue more aggressive when the use is a PHI. In 
particular, it should realize that phi's use their values in the pred block
not the phi block itself.  This change turns our em3d loop from this:

_test:
        cmpwi cr0, r4, 0
        bgt cr0, LBB_test_2     ; entry.no_exit_crit_edge
LBB_test_1:     ; entry.loopexit_crit_edge
        li r2, 0
        b LBB_test_6    ; loopexit
LBB_test_2:     ; entry.no_exit_crit_edge
        li r6, 0
LBB_test_3:     ; no_exit
        or r2, r6, r6
        lwz r6, 0(r3)
        cmpw cr0, r6, r5
        beq cr0, LBB_test_6     ; loopexit
LBB_test_4:     ; endif
        addi r3, r3, 4
        addi r6, r2, 1
        cmpw cr0, r6, r4
        blt cr0, LBB_test_3     ; no_exit
LBB_test_5:     ; endif.loopexit.loopexit_crit_edge
        addi r3, r2, 1
        blr
LBB_test_6:     ; loopexit
        or r3, r2, r2
        blr

into:

_test:
        cmpwi cr0, r4, 0
        bgt cr0, LBB_test_2     ; entry.no_exit_crit_edge
LBB_test_1:     ; entry.loopexit_crit_edge
        li r2, 0
        b LBB_test_5    ; loopexit
LBB_test_2:     ; entry.no_exit_crit_edge
        li r6, 0
LBB_test_3:     ; no_exit
        lwz r2, 0(r3)
        cmpw cr0, r2, r5
        or r2, r6, r6
        beq cr0, LBB_test_5     ; loopexit
LBB_test_4:     ; endif
        addi r3, r3, 4
        addi r6, r6, 1
        cmpw cr0, r6, r4
        or r2, r6, r6
        blt cr0, LBB_test_3     ; no_exit
LBB_test_5:     ; loopexit
        or r3, r2, r2
        blr


Unfortunately, this is actually worse code, because the register coallescer
is getting confused somehow.  If it were doing its job right, it could turn the
code into this:

_test:
        cmpwi cr0, r4, 0
        bgt cr0, LBB_test_2     ; entry.no_exit_crit_edge
LBB_test_1:     ; entry.loopexit_crit_edge
        li r6, 0
        b LBB_test_5    ; loopexit
LBB_test_2:     ; entry.no_exit_crit_edge
        li r6, 0
LBB_test_3:     ; no_exit
        lwz r2, 0(r3)
        cmpw cr0, r2, r5
        beq cr0, LBB_test_5     ; loopexit
LBB_test_4:     ; endif
        addi r3, r3, 4
        addi r6, r6, 1
        cmpw cr0, r6, r4
        blt cr0, LBB_test_3     ; no_exit
LBB_test_5:     ; loopexit
        or r3, r6, r6
        blr

... which I'll work on next. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23604 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 02:50:05 +00:00
Chris Lattner
0ae33eb243 Refactor some code into a function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23603 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 01:04:44 +00:00
Chris Lattner
1902ff4d82 This break is bogus and I have no idea why it was there. Basically it prevents 
memoizing code when IV's are used by phinodes outside of loops.  In a simple
example, we were getting this code before (note that r6 and r7 are isomorphic
IV's):

        li r6, 0
        or r7, r6, r6
LBB_test_3:     ; no_exit
        lwz r2, 0(r3)
        cmpw cr0, r2, r5
        or r2, r7, r7
        beq cr0, LBB_test_5     ; loopexit
LBB_test_4:     ; endif
        addi r2, r7, 1
        addi r7, r7, 1
        addi r3, r3, 4
        addi r6, r6, 1
        cmpw cr0, r6, r4
        blt cr0, LBB_test_3     ; no_exit

Now we get:

        li r6, 0
LBB_test_3:     ; no_exit
        or r2, r6, r6
        lwz r6, 0(r3)
        cmpw cr0, r6, r5
        beq cr0, LBB_test_6     ; loopexit
LBB_test_4:     ; endif
        addi r3, r3, 4
        addi r6, r2, 1
        cmpw cr0, r6, r4
        blt cr0, LBB_test_3     ; no_exit

this was noticed in em3d.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23602 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 00:37:33 +00:00
Chris Lattner
37edbf0b21 when checking if we should move a split edge block outside of a loop, 
check the presplit pred, not the post-split pred.  This was causing us
to make the wrong decision in some cases, leaving the critical edge block
in the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23601 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-03 00:31:52 +00:00
Chris Lattner
ab510a76d6 Fix a problem where the legalizer would run out of stack space on extremely 
large basic blocks because it was purely recursive.  This switches it to an
iterative/recursive hybrid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23596 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 17:49:46 +00:00
Chris Lattner
dcd5abc70c silence a bogus warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23595 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 16:30:51 +00:00
Chris Lattner
3cf8760dc5 silence some warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23594 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 16:29:36 +00:00
Chris Lattner
123557fcf0 silence a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23593 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 16:27:59 +00:00
Chris Lattner
dff06f4348 add patterns for float binops and fma ops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23592 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 07:46:28 +00:00
Chris Lattner
080a4b1637 Sort the cpu and features table, so that the alpha backend doesn't fail EVERY 
compile with an assertion that the tables are not sorted!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23591 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 07:13:52 +00:00
Chris Lattner
a3638c0f1f Add assertions to the trivial scheduler to check that the value types match 
up between defs and uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23590 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 07:10:55 +00:00
Chris Lattner
43f07a4bbc another solution to the fsel issue. Instead of having 4 variants, just force 
the comparison to be 64-bits.  This is fine because extensions from float
to double are free.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23589 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 07:07:49 +00:00
Chris Lattner
867940d1b7 fsel can take a different FP type for the comparison and for the result. As such 
split the FSEL family into 4 things instead of just two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23588 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 06:58:23 +00:00
Chris Lattner
7c0d664c21 fix an f32/f64 type mismatch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23587 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 06:37:13 +00:00
Chris Lattner
14765be0bc Codegen CopyFromReg using the regclass that matches the valuetype of the 
destination vreg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23586 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 06:34:16 +00:00
Chris Lattner
a916dd8888 Adjust to change in ctor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23585 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-02 06:23:51 +00:00
Chris Lattner
ca0a4778a8 Minor tweak to the branch selector. When emitting a two-way branch, and if 
we're in a single-mbb loop, make sure to emit the backwards branch as the
conditional branch instead of the uncond branch.  For example, emit this:

LBBl29_z__44:
        stw r9, 0(r15)
        stw r9, 4(r15)
        stw r9, 8(r15)
        stw r9, 12(r15)
        addi r15, r15, 16
        addi r8, r8, 1
        cmpw cr0, r8, r28
        ble cr0, LBBl29_z__44
        b LBBl29_z__48                   *** NOT PART OF LOOP

Instead of:

LBBl29_z__44:
        stw r9, 0(r15)
        stw r9, 4(r15)
        stw r9, 8(r15)
        stw r9, 12(r15)
        addi r15, r15, 16
        addi r8, r8, 1
        cmpw cr0, r8, r28
        bgt cr0, LBBl29_z__48            *** PART OF LOOP!
        b LBBl29_z__44

The former sequence has one fewer dispatch group for the loop body.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23582 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-01 23:06:26 +00:00
Chris Lattner
b91956e7f8 like the comment says, enable this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23581 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-01 23:02:40 +00:00