Chris Lattner
7a49fdcd11
Fix 'ret long' to return the high and lo parts in the right registers. This
...
fixes crafty and probably others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23167 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-31 01:34:29 +00:00
Nate Begeman
fe75a2836a
Sigh, not my day. Fix typo.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23166 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-31 00:43:49 +00:00
Nate Begeman
9f52f2838d
Fix a mistake in my previous patch pointed out by sabre; the AssertZext
...
case in MaskedValueIsZero was wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23165 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-31 00:43:08 +00:00
Nate Begeman
b85dfab889
Remove some unnecessary casts, and add the AssertZext case to
...
MaskedValueIsZero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23164 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-31 00:27:53 +00:00
Chris Lattner
eb80fe8ff6
now that physregs can exist in the same dag with multiple types, remove some
...
ugly hacks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23162 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 22:59:48 +00:00
Chris Lattner
0fdd768094
Allow physregs to occur in the dag with multiple types. Though I don't likethis, it is a requirement on PPC, which can have an f32 value in r3 at onepoint in a function and a f64 value in r3 at another point. :(
...
This fixes compilation of mesa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23161 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 22:38:38 +00:00
Chris Lattner
2ea0c66ae5
Fix type mismatches when passing f32 values to calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23159 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 21:28:19 +00:00
Chris Lattner
e836ad6736
When checking the fixed intervals, don't forget to check for register aliases.
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This fixes PR621 and Regression/CodeGen/X86/2005-08-30-RegAllocAliasProblem.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23158 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 21:03:36 +00:00
Chris Lattner
1368721d53
Fix some indentation (first hunks).
...
Remove code (last hunk) that miscompiled immediate and's, such as
and uint %tmp.30, 4294958079
into
andi. r8, r8, 56319
andis. r8, r8, 65535
instead of:
li r9, -9217
and r8, r8, r9
The first always generates zero.
This fixes espresso.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23155 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 18:37:48 +00:00
Chris Lattner
b551ba7661
Fix a problem Nate found where we swapped the operands of SHL/SHR_PARTS. This
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fixes fourinarow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23153 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 17:42:59 +00:00
Chris Lattner
14b86c72a2
codegen ADD_PARTS correctly: put the results in the right registers! This
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fixes fhourstones
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23152 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 17:40:13 +00:00
Chris Lattner
cc0675a4be
Fix FreeBench/fourinarow with the dag isel, by not adding a bogus result
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to SHIFT_PARTS nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23151 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 17:21:17 +00:00
Chris Lattner
2501d5e29c
add operands in the right order, fixing McCat/18-imp with the dag isel
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23150 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 17:13:58 +00:00
Chris Lattner
ec176e30d6
Fix a miscompile of PtrDist/bc. Sign extending bools is not the right thing,
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at least tends to expose problems elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23149 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 16:56:19 +00:00
Nate Begeman
5ffcd9b56c
Remove a bogus piece of my AssertSext/AssertZext patch. oops.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23148 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 02:54:28 +00:00
Nate Begeman
56eb86806d
Add support for AssertSext and AssertZext, folding other extensions with
...
them. This allows for elminination of redundant extends in the entry
blocks of functions on PowerPC.
Add support for i32 x i32 -> i64 multiplies, by recognizing when the inputs
to ISD::MUL in ExpandOp are actually just extended i32 values and not real
i64 values. this allows us to codegen
int mulhs(int a, int b) { return ((long long)a * b) >> 32; }
as:
_mulhs:
mulhw r3, r4, r3
blr
instead of:
_mulhs:
mulhwu r2, r4, r3
srawi r5, r3, 31
mullw r5, r4, r5
add r2, r2, r5
srawi r4, r4, 31
mullw r3, r4, r3
add r3, r2, r3
blr
with a similar improvement on x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23147 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 02:44:00 +00:00
Chris Lattner
f155635b53
Name this variable to be what it really is!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23145 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 01:58:51 +00:00
Chris Lattner
55334fc45c
Handle CopyToReg nodes with flag operands correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23144 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 01:57:23 +00:00
Chris Lattner
31ce12f4f5
Make sure the selector emits register register copies with flag operands
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linking them to calls when appropriate, this prevents the scheduler from
pulling these copies away from the call.
This fixes Ptrdist/yacr2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23143 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 01:57:02 +00:00
Chris Lattner
15055733f8
The first operand to AND does not always have more than two operands. This
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fixes MediaBench/toast with the dag selector
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23141 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 00:59:16 +00:00
Chris Lattner
6de08f4377
Fix a bug in my patch for legalizing to fsel. It cannot handle seteq/setne,
...
which I failed to include when I moved the code over. This fixes
MallocBench/gs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23140 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 00:45:18 +00:00
Chris Lattner
8f838720ad
emit FMR instructions to convert f64<->f32 instructions, so things like
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STOREs, know the right type to store.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23139 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 00:30:43 +00:00
Chris Lattner
915fb302b1
Fix some really strange indentation that xcode likes to use.
...
no xcode, this is not right:
if (!foo) break;
X;
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23138 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 00:19:00 +00:00
Chris Lattner
8bbcc20a9d
fix a crash in cfrac
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23137 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 23:49:25 +00:00
Chris Lattner
9c2dece8e2
Implement DYNAMIC_STACKALLOC, wrap some long lines
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23136 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 23:30:11 +00:00
Chris Lattner
82e14db9a9
Add a hack to avoid some horrible code in some cases by always emitting
...
token chains first. For this C function:
int test() {
int i;
for (i = 0; i < 100000; ++i)
foo();
}
Instead of emitting this (condition before call)
.LBB_test_1: ; no_exit
addi r30, r30, 1
lis r2, 1
ori r2, r2, 34464
cmpw cr2, r30, r2
bl L_foo$stub
bne cr2, .LBB_test_1 ; no_exit
Emit this:
.LBB_test_1: ; no_exit
bl L_foo$stub
addi r30, r30, 1
lis r2, 1
ori r2, r2, 34464
cmpw cr0, r30, r2
bne cr0, .LBB_test_1 ; no_exit
Which makes it so we don't have to save/restore cr2 in the prolog/epilog of
the function.
This also makes the code much more similar to what the pattern isel produces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23135 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 23:21:29 +00:00
Chris Lattner
7107c10501
Fix a dumb bug of mine where we were mishandling the PPC ABI (undef handling).
...
This fixes voronoi and bh in Olden, allowing all of olden to pass!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23133 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 22:22:57 +00:00
Chris Lattner
c26aefa15a
Add a new API for Nate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23131 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 21:59:31 +00:00
Andrew Lenharth
5e3efbc2ca
Some of us cared about the the promote path
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23130 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 20:46:51 +00:00
Chris Lattner
507f752f6e
Fix an infinite loop on x86
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23129 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 17:30:00 +00:00
Chris Lattner
d00b28809d
Allow bugpoint+PPC codegen to use fsqrt
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23128 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 13:14:24 +00:00
Chris Lattner
efa6abcb95
Fix a bug the last patch exposed in treeadd among others
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23127 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 01:07:02 +00:00
Chris Lattner
2fef809b5b
A hack to fix a problem folding immedaites. This fixes Olden/power.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23126 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 01:01:01 +00:00
Chris Lattner
2a06a5ef36
Fix order of operands for copytoreg node when emitting calls. This fixes
...
Olden/msFix order of operands for copytoreg node when emitting calls. This fixes
Olden/mstt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23125 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 00:26:57 +00:00
Chris Lattner
dfd58709cc
Fix a bug in my previous patch that was using the wrong iterator. This fixes
...
Olden/bisort among others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23124 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 00:10:46 +00:00
Chris Lattner
b9efd14568
add operands in the correct order
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23123 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 00:02:01 +00:00
Chris Lattner
ff01698ec0
Fix a bug in ReplaceAllUsesWith
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23122 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-28 23:59:36 +00:00
Chris Lattner
c8a89a1fcb
Fix a bug in FP_EXTEND, implement FP_TO_SINT
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23121 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-28 23:59:09 +00:00
Chris Lattner
528f58e813
fix an assertion failure in treeadd
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23120 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-28 23:39:22 +00:00
Reid Spencer
dd22dc85ea
Adjust to member variable name change.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23119 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27 19:09:48 +00:00
Reid Spencer
0f9beca707
Change the names of member variables per Chris' instructions, and document
...
them more clearly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23118 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27 19:09:02 +00:00
Reid Spencer
68a24bdba4
Implement PR614:
...
These changes modify the makefiles so that the output of flex and bison are
placed in the SRC directory, not the OBJ directory. It is intended that they
be checked in as any other LLVM source so that platforms without convenient
access to flex/bison can be compiled. From now on, if you change a .y or
.l file you *must* also commit the generated .cpp and .h files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23115 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27 18:50:39 +00:00
Chris Lattner
88b9c15912
Disable this code, which broke many tests last night
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23114 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27 16:16:51 +00:00
Chris Lattner
620c93cca1
fix PHI node emission for basic blocks that have select_cc's in them on ppc32
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23113 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27 00:58:02 +00:00
Chris Lattner
e3f1c97734
The condition register being branched on may not be cr0, as such, print it.
...
This fixes: UnitTests/2005-07-17-INT-To-FP.c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23112 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 23:42:05 +00:00
Chris Lattner
f48e83ded0
Propagate cr# from COND_BRANCH to the actual branch instruction as appropriate
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23111 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 23:41:27 +00:00
Chris Lattner
eb150d7d1f
Nate noticed that Andrew never did this. This fixes PR600
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23110 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:50:40 +00:00
Chris Lattner
9d3a483a38
Don't copy regs that are only used in the entry block into a vreg. This
...
changes the code generated for:
short %test(short %A) {
%B = xor short %A, -32768
ret short %B
}
to:
_test:
xori r2, r3, 32768
xoris r2, r2, 65535
extsh r3, r2
blr
instead of:
_test:
rlwinm r2, r3, 0, 16, 31
xori r2, r3, 32768
xoris r2, r2, 65535
extsh r3, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23109 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:49:59 +00:00
Chris Lattner
ed461e0faf
Make this code safe for when loadRegFromStackSlot inserts multiple instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23108 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:18:32 +00:00
Chris Lattner
28b9cc2d13
allow code using mtcrf to assemble
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23107 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:05:54 +00:00
Nate Begeman
a0df5d8da5
Remove operand type 'crbit', since it is no longer used
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23106 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:04:17 +00:00
Chris Lattner
82972705df
teach getClass what a condition reg is
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23105 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 21:51:29 +00:00
Chris Lattner
5087daac23
Minor cleanups:
...
* avoid calling getClass() multiple times (it is relatively expensive)
* Allow -disable-fp-elim to turn of frame pointer elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23104 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 21:49:18 +00:00
Chris Lattner
579cfabdad
Checking types here is not safe, because multiple types can map to the same
...
register class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23103 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 21:39:15 +00:00
Chris Lattner
8a2d3ca7df
implement SELECT_CC fully for the DAG->DAG isel!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23101 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 21:23:58 +00:00
Chris Lattner
e3cbf823f0
spell this right
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23099 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 20:55:40 +00:00
Chris Lattner
025c39bf36
Call the InsertAtEndOfBasicBlock hook if the usesCustomDAGSchedInserter
...
flag is set on an instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23098 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 20:54:47 +00:00
Chris Lattner
0efa0f9ee9
Add a flag
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23092 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 20:29:01 +00:00
Chris Lattner
0bbea95433
Make fsel emission work with both the pattern and dag-dag selectors, by
...
giving it a non-instruction opcode. The dag->dag selector used to not
select the operands of the fsel, because it thought that whole tree was
already selected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23091 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 20:25:03 +00:00
Chris Lattner
13794f5d01
implement the fold for:
...
bool %test(int %X, int %Y) {
%C = setne int %X, 0
ret bool %C
}
to:
_test:
addic r2, r3, -1
subfe r3, r2, r3
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23089 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 18:46:49 +00:00
Chris Lattner
52987f4f65
Changes to adjust to new ReplaceAllUsesWith syntax. Change FP_EXTEND to
...
just return its input, instead of emitting an explicit copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23088 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 18:37:23 +00:00
Chris Lattner
8b52f21f10
Revampt ReplaceAllUsesWith to be more efficient and easier to use.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23087 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 18:36:28 +00:00
Nate Begeman
60675f7562
Remove some code made dead by the fsel patch
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23085 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:45:06 +00:00
Chris Lattner
28b9be300c
now that fsel is formed during legalization, this code is dead
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23084 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:40:39 +00:00
Chris Lattner
0b1e4e508b
implement the other half of the select_cc -> fsel lowering, which handles
...
when the RHS of the comparison is 0.0. Turn this on by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23083 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:36:52 +00:00
Chris Lattner
143b675393
Fix a bug in my previous checkin
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23082 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:18:44 +00:00
Chris Lattner
5839bf2b3b
Change ConstantPoolSDNode to actually hold the Constant itself instead of
...
putting it into the constant pool. This allows the isel machinery to
create constants that it will end up deciding are not needed, without them
ending up in the resultant function constant pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23081 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:15:30 +00:00
Chris Lattner
95e0682a42
Fix some warnings in an optimized build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23080 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 16:38:51 +00:00
Chris Lattner
2bb06cdf27
Fix a huge annoyance: SelectNodeTo took types before the opcode unlike
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every other SD API. Fix it to take the opcode before the types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23079 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 16:36:26 +00:00
Nate Begeman
6718f11feb
Fix JIT encoding of conditional branches
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23076 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 04:11:42 +00:00
Chris Lattner
e4bc9ea0a5
add initial support for converting select_cc -> fsel in the legalizer
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instead of in the backend. This currently handles fsel cases with registers,
but doesn't have the 0.0 and -0.0 optimization enabled yet.
Once this is finished, special hack for fp immediates can go away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23075 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:52:45 +00:00
Chris Lattner
d7050a9c50
the 5th operand is the 4th number
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23074 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:43:46 +00:00
Nate Begeman
bb22df31d9
SUBFIC produces two results, not one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23073 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:34:06 +00:00
Nate Begeman
6660cd65cf
Implement SHL_PARTS and SRL_PARTS
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23072 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:28:00 +00:00
Chris Lattner
23004e5f21
Add support for targets that want to custom expand select_cc in some cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23071 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:23:59 +00:00
Chris Lattner
07dffd6af6
Allow LowerOperation to return a null SDOperand in case it wants to lower
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some things given to it, but not all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23070 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:14:16 +00:00
Chris Lattner
f07d023dd9
Fix a nasty bug from a previous patch of mine
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23069 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:13:12 +00:00
Chris Lattner
b20c318df0
Emit the lo/hi parts in the right order :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23068 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 23:36:49 +00:00
Chris Lattner
a9317ed361
implement support for 64-bit add/sub, fix a broken assertion for 64-bit
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return. Allow the udiv breaker-upper to work with any non-zero constant
operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23066 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 23:21:06 +00:00
Chris Lattner
801d5f56bb
simplify the add/sub_parts code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23065 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 23:19:58 +00:00
Chris Lattner
047b952e29
Finish implementing SDIV/UDIV by copying over the majik constant code from
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ISelPattern
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23062 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 22:04:30 +00:00
Chris Lattner
c70b4afce2
Simplify some code. It's not clear why the UDIV expanded sequence
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doesn't work for large uint constants, but we'll keep the current behavior
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23061 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 22:03:50 +00:00
Chris Lattner
957fcfbd89
Implement setcc correctly for G5 and non-G5 systems
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23060 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 21:39:42 +00:00
Chris Lattner
64906a06b3
implement setcc on the G5. We're still missing the non-g5 specific bits, but
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they will come later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23059 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 20:08:18 +00:00
Nate Begeman
1999b4b974
New fold for SELECT_CC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23058 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 20:04:38 +00:00
Nate Begeman
c8e27db5c5
Remove option to make SetCC illegal on PowerPC after long discussion with
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Chris. This will be accomplished through correctly modeling CR's and
subregs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23056 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 20:01:10 +00:00
Chris Lattner
43247a157b
Don't auto-cse nodes that return flags
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23055 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 19:12:10 +00:00
Chris Lattner
8064e8fbf4
add printer support for flag operands
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23054 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 17:59:23 +00:00
Chris Lattner
9d338cf3a3
simplify the code a bit using isOperationLegal
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23053 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 17:54:58 +00:00
Chris Lattner
8784a23075
Add support for sdiv by 2^k and -2^k. Producing code like:
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_test:
srawi r2, r3, 2
addze r3, r2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23052 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 17:50:06 +00:00
Chris Lattner
ee84f11577
fit in 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23051 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 17:49:31 +00:00
Chris Lattner
376d54f9b6
Add support for flag operands
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23050 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 17:48:54 +00:00
Chris Lattner
a64d4cddf5
add an enum value
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23048 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 17:07:09 +00:00
Chris Lattner
34e17052a7
Implement support for taking the address of constant pool indices, which
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is used by the int -> FP code among other things. This gets
2005-05-12-Int64ToFP past that failure, to dying on lack of support for add_parts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23042 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 05:04:11 +00:00
Chris Lattner
4025a9c2cc
ADd support for TargetConstantPool nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23041 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 05:03:06 +00:00
Chris Lattner
2fe76e58eb
Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23038 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 04:47:18 +00:00
Chris Lattner
e28e40a273
Fully implement frame index, so that we can pass the address of alloca's
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around to functions and stuff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23036 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:45:43 +00:00
Chris Lattner
afb2dd43de
add a new TargetFrameIndex node
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23035 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:43:01 +00:00
Chris Lattner
89532c7db0
implement unconditional branches, fixing UnitTests/2003-05-02-DependentPHI.c
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23034 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:29:58 +00:00
Chris Lattner
fdf8366ecc
LFS/STFS load and store FP values, not integer ones. This change allows us
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to codegen this: float foo() { return 1.245; }
into this:
_foo:
lis r2, ha16(.CPI_foo_0)
lfs f1, lo16(.CPI_foo_0)(r2)
blr
instead of this:
_foo:
lis r2, ha16(.CPI_foo_0)
lfs r2, lo16(.CPI_foo_0)(r2) <-- ouch
or f1, r2, r2 <-- ouch
blr
with the dag isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23033 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:26:22 +00:00
Chris Lattner
ed7956bfe4
Fix a broken assertion
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23032 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:19:12 +00:00
Chris Lattner
7cad4f2089
Fix a warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23031 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:05:15 +00:00
Chris Lattner
4a20997057
fix a warning in optimized build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23030 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:03:21 +00:00
Chris Lattner
e0a7f83049
Fix some warnings
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23029 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:00:26 +00:00
Chris Lattner
2b54400f08
Split IMPLICIT_DEF into IMPLICIT_DEF_GPR and IMPLICIT_DEF_FP, so that the
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instructions take a consistent reg class. Implement ISD::UNDEF in the dag->dag
selector to generate this, fixing UnitTests/2003-07-06-IntOverflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23028 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 23:08:16 +00:00
Chris Lattner
7651fa4a7e
add a method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23027 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 23:00:29 +00:00
Chris Lattner
fb0c964364
implement support for calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23026 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 22:45:17 +00:00
Chris Lattner
7b2880c4cd
Add ReplaceAllUsesWith that can take a vector of replacement values.
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Add some foldings to hopefully help the illegal setcc issue, and move some code around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23025 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 22:44:39 +00:00
Chris Lattner
86fac6b00a
Remove some dead cases.
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Emit the indcall sequence as:
mtctr inreg
mr R12, inreg
btctr
If inreg and R12 aren't coallesced, this reduces the odds of having the mtctr
and btctr in the same dispatch group. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23023 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 22:21:47 +00:00
Chris Lattner
14b392af1d
Add support for external symbols, and support for variable arity instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23022 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 22:02:41 +00:00
Chris Lattner
e39db07713
Fix pasto that prevented VT ndoes from showing up in -view-isel-dags correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23021 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 18:30:00 +00:00
Chris Lattner
a3c4454c5f
add an idea
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23020 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 18:15:24 +00:00
Chris Lattner
ac83b0301e
Fix Regression/Transforms/Reassociate/2005-08-24-Crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23019 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 17:55:32 +00:00
Chris Lattner
53249865ec
Transform floor((double)FLT) -> (double)floorf(FLT), implementing
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Regression/Transforms/SimplifyLibCalls/floor.ll. This triggers 19 times in
177.mesa.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23017 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 17:22:17 +00:00
Chris Lattner
ab466d769a
floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls
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in mesa.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23015 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:58:56 +00:00
Chris Lattner
1d6373c1af
teach selection dag mask tracking about the fact that select_cc operates like
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select. Also teach it that the bit count instructions can only set the low bits
of the result, depending on the size of the input.
This allows us to compile this:
int %eq0(int %a) {
%tmp.1 = seteq int %a, 0 ; <bool> [#uses=1]
%tmp.2 = cast bool %tmp.1 to int ; <int> [#uses=1]
ret int %tmp.2
}
To this:
_eq0:
cntlzw r2, r3
srwi r3, r2, 5
blr
instead of this:
_eq0:
cntlzw r2, r3
rlwinm r3, r2, 27, 31, 31
blr
when setcc is marked illegal on ppc (which restores parity to non-illegal
setcc). Thanks to Nate for pointing this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23013 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:46:55 +00:00
Chris Lattner
c9c60f6429
Start using isOperationLegal and isTypeLegal to simplify the code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23012 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:35:28 +00:00
Chris Lattner
9ed62c16f2
Adjust to new interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23010 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:34:12 +00:00
Reid Spencer
0a262ba7c3
For PR616:
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These patches make threading optional in LLVM. The configuration scripts are now
modified to accept a --disable-threads switch. If this is used, the Mutex class
will be implemented with all functions as no-op. Furthermore, linking against
libpthread will not be done. Finally, the ParallelJIT example needs libpthread
so its makefile was changed to always add -lpthread to the link line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23003 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 10:07:20 +00:00
Nate Begeman
6ef4949a0b
Whoops, fix a thinko. All cases except SETNE are now handled by the
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target independent code in SelectionDAG.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23002 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 05:06:48 +00:00
Nate Begeman
c6b0717a6c
Remove unused statistic
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Prefer 'neg X' to 'subfic 0, X' since neg does not set XER[CA]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23001 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 05:03:20 +00:00
Nate Begeman
4b46fc094d
Add the "ppc specific" setcc-equivalent select_cc cases
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Prefer 'neg X' to 'subfic 0, X' since it does not set XER[CA]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23000 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 04:59:21 +00:00
Nate Begeman
cebd433d8d
Teach SelectionDAG how to simplify a few more setcc-equivalent select_cc
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nodes so that backends don't have to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22999 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 04:57:57 +00:00
Chris Lattner
a2590c5b3e
Add callseq_begin/end support
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Call stil not supported yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22998 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:47:15 +00:00
Chris Lattner
82cfa5d616
Make -view-isel-dags show the dag before instruction selecting, in case
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the target isel crashes due to unimplemented features like calls :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22997 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:34:29 +00:00
Nate Begeman
0750a40a4f
Fix optimization of select_cc seteq X, 0, 1, 0 -> srl (ctlz X), log2 X size
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22995 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:21:28 +00:00
Chris Lattner
657b4d1ac6
Implement LiveVariables.h change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22994 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 00:09:33 +00:00
Chris Lattner
44b94c2185
adjust to new live variables interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22992 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 23:42:17 +00:00
Chris Lattner
d177579860
Adjust to new livevars interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22991 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 23:41:14 +00:00
Chris Lattner
ab4b66d4c2
Simplify this code by using higher-level LiveVariables methods
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22989 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 22:51:41 +00:00
Chris Lattner
76eb08bcda
Simplify this code by using LiveVariables::KillsRegister
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22988 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 22:49:55 +00:00
Chris Lattner
b980578b41
Keep track of which registers are related to which other registers.
...
Use this information to avoid doing expensive interval intersections for
registers that could not possible be interesting. This speeds up linscan
on ia64 compiling kc++ in release mode from taking 7.82s to 4.8s(!), total
itanium llc time on this program is 27.3s now. This marginally speeds up
PPC and X86, but they appear to be limited by other parts of linscan, not
this code.
On this program, on itanium, live intervals now takes 41% of llc time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22986 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 22:27:31 +00:00
Chris Lattner
57da25231a
Fix PR618 and Regression/CodeGen/CBackend/2005-08-23-Fmod.ll by not emitting
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x%y for 'rem' on fp values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22984 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 20:22:50 +00:00
Chris Lattner
424dcbdb3b
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22982 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 06:27:59 +00:00
Nate Begeman
8ca5693c51
Ack, typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22981 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 05:45:10 +00:00
Nate Begeman
a50d53e5ef
Add an option to make SetCC illegal as a beta option
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22979 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 05:42:36 +00:00
Nate Begeman
7042f15bde
Teach the SelectionDAG how to transform select_cc eq, X, 0, 1, 0 into
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either seteq X, 0 or srl (ctlz X), size(X-1), depending on what's legal
for the target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22978 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 05:41:12 +00:00
Nate Begeman
b942a3dd5f
Teach Legalize how to turn setcc into select_cc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22977 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 04:29:48 +00:00
Nate Begeman
354df0ae6d
Remove some instructions we no longer generate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22976 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 01:16:46 +00:00
Chris Lattner
1f24df6324
Remove some regs that are not used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22975 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 22:32:13 +00:00
Chris Lattner
9dc4d3cbac
Nate noticed that 30% of the malloc/frees in llc come from calls to LowercaseString
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in the asmprinter. This changes the .td files to use lower case register names,
avoiding the need to do this call. This speeds up the asmprinter from 1.52s
to 1.06s on kc++ in a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22974 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 22:00:02 +00:00
Chris Lattner
0a00bece0d
Fix a crash I introduced into the IA64 backend with my copyfromreg change.
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It used to crash on any function that took float arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22973 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 21:33:11 +00:00
Chris Lattner
a411cbca5c
Try to avoid scanning the fixed list. On architectures with a non-stupid
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number of regs (e.g. most riscs), many functions won't need to use callee
clobbered registers. Do a speculative check to see if we can get a free
register without processing the fixed list (which has all of these). This
saves a lot of time on machines with lots of callee clobbered regs (e.g.
ppc and itanium, also x86).
This reduces ppc llc compile time from 184s -> 172s on kc++. This is probably
worth FAR FAR more on itanium though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22972 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 20:59:30 +00:00
Chris Lattner
a6c1750362
Move some code in the register assignment case that only needs to happen if
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we spill out of the fast path. The scan of active_ and the calls to
updateSpillWeights don't need to happen unless a spill occurs. This reduces
debug llc time of kc++ with ppc from 187.3s to 183.2s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22971 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 20:20:42 +00:00
Chris Lattner
47c0889419
Add a pass name for -time-passes output
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22970 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 18:28:09 +00:00
Chris Lattner
8f03405ee5
Fix a problem where constant expr shifts would not have their shift amount
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promoted to the right type. This fixes: IA64/2005-08-22-LegalizerCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22969 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 17:28:31 +00:00
Chris Lattner
f8355d9846
Speed up this loop a bit, based on some observations that Nate made, and
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add some comments. This loop really needs to be reevaluated!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22966 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 16:55:22 +00:00
Chris Lattner
f7f2255505
Implement stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22963 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 01:27:59 +00:00
Chris Lattner
23553cfb4a
Add a fast-path for register values. Add support for constant pool entries,
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allowing us to compile this:
float %test2(float* %P) {
%Q = load float* %P
%R = add float %Q, 10.1
ret float %R
}
to this:
_test2:
lfs r2, 0(r3)
lis r3, ha16(.CPI_test2_0)
lfs r3, lo16(.CPI_test2_0)(r3)
fadds f1, r2, r3
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22962 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 01:04:32 +00:00
Chris Lattner
ddf3e7dfd7
Fix compilation of:
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float %test2(float* %P) {
%Q = load float* %P
%R = add float %Q, %Q
ret float %R
}
By returning the right result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22961 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-22 00:59:14 +00:00