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Author SHA1 Message Date
Chris Lattner
791f896d9f Now that we use an ilist of machine instructions, iterators are more robust 
than before.  Because this is the case, we can compute the first non-phi
instruction once when de-phi'ing a block.  This shaves ~4s off of
phielimination of _Z7yyparsev in kimwitu++ from 109s -> 105s.  There are
still much more important gains to come.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13452 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-10 18:47:18 +00:00
Chris Lattner
c81e6bae88 Fix a fairly serious pessimizaion that was preventing us from efficiently 
compiling things like 'add long %X, 1'.  The problem is that we were switching
the order of the operands for longs even though we can't fold them yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13451 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-10 15:15:55 +00:00
Chris Lattner
3699e05fb2 Bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13450 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-10 14:28:09 +00:00
Chris Lattner
6d3848df7e Patch to fix PR337. Make sure to mark all aliased physical registers as used 
when we see a read of a register.  This is important in cases like:

AL = ...
AH = ...

   = AX

The read of AX must make both the AL and AH defs live until the use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13444 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-10 05:12:43 +00:00
Chris Lattner
02eac39359 Testcase for PR337, which was reduced by Reid Spencer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13443 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-10 05:11:24 +00:00
Reid Spencer
44ff57a56b Bug 178 Fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13442 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 23:32:39 +00:00
Reid Spencer
dc8e6b59e7 Changes to make the Stacker Stack use 64 bit values. This *should* get 
around the problem with Stacker on Solaris because the Stack can handle
64-bit entries (pointer sized).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13441 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 23:20:19 +00:00
Chris Lattner
9984fd0df9 Fix some comments, avoid sign extending booleans when zero extend works fine 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13440 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 23:16:33 +00:00
Chris Lattner
96e3b426d5 Generate more efficient code for casting booleans to integers (no sign extension required) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13439 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 22:28:45 +00:00
Chris Lattner
cb3ad01833 syntactically loopify natural loops so that the GCC loop optimizer can find them. This should *dramatically* improve the performance of CBE compiled code on targets that depend on GCC's loop optimizations (like PPC) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13438 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 20:41:32 +00:00
Chris Lattner
4589ed9510 Do not emit prototypes for setjmp/longjmp, as they are handled specially 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13437 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 16:03:29 +00:00
Chris Lattner
0555ed8bff Fine grainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13436 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 06:22:29 +00:00
Chris Lattner
6875807572 Make the floating point constant pools local to each function, split the 
FindUsedTypes manipulation stuff out to be a seperate pass, and make the
main CWriter be a function pass now!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13435 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 06:20:51 +00:00
Brian Gaeke
b0fd761c3d Bug fixed. 
Rewrite portability intro.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13434 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 05:28:35 +00:00
Chris Lattner
c2421439b5 Get this looking more like a function pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13433 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 04:30:20 +00:00
Chris Lattner
0979ca7e3e Implement the AddPrototypes method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13432 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 04:29:57 +00:00
Chris Lattner
43c81f19ee Add support for inserting all prototypes up-front 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13431 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 04:29:49 +00:00
Chris Lattner
a05e0ec419 Print all PHI copies for successor blocks before the terminator, whether it be a conditional branch or switch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13430 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-09 03:42:48 +00:00
Chris Lattner
be97b4e9ab Fix stupid bug in my checkin yesterday 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13429 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 22:41:42 +00:00
Tanya Lattner
b4b2e9d5a7 Fixed up sched graph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13428 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:14:24 +00:00
Tanya Lattner
5a75c91951 Registering the ModuloScheduling pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13427 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:14:02 +00:00
Tanya Lattner
e5abfd2c05 Changed CPUResource to allow access to max num users for a resource. 
Also added ModuloScheduling as a friend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13426 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:13:26 +00:00
Tanya Lattner
6b160503b5 Changed CPUResource to allow access to maxnum users. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13425 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:12:50 +00:00
Tanya Lattner
73e3e2e10f Updating my versions of ModuloScheduling in cvs. Still not complete. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13424 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 16:12:10 +00:00
Brian Gaeke
429022bf83 Add support for widening integral casts. 
Flesh out the SetCC support... which currently ends in a little bit
of unfinished code (which is probably completely hilarious) for
generating the condition value splitting the basic block up into 4
blocks, like this (clearly a better API is needed for this!):

       BB
   cond. branch
     /         /          R1=1    R2=0
     \      /
      \    /
    R=phi(R1,R2)

Other minor edits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13423 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 06:36:14 +00:00
Brian Gaeke
59dbff714c Add a bunch more branches 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13422 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 06:08:29 +00:00
Brian Gaeke
9f56482a43 Flesh out GEP support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13421 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 05:27:20 +00:00
Brian Gaeke
6b1d2fa1d1 Add ADD with immediate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13420 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 05:26:55 +00:00
Brian Gaeke
c3e970122a Add forms of CMP, SUBCC, and a few branches, and some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13419 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 04:21:32 +00:00
Brian Gaeke
532e60c403 Add stub support for GEPs. 
Add support for branches (based loosely on X86/InstSelectSimple).
Add support for not visiting phi nodes in the first pass.
Add support for loading bools.
Flesh out support for stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13418 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 04:21:17 +00:00
Alkis Evlogimenos
880e8e4b4c Add required header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13417 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 03:50:03 +00:00
Alkis Evlogimenos
feab248c93 Remove unneeded header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13416 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-08 03:49:35 +00:00
Chris Lattner
620ce14666 Implement folding of GEP's like: 
%tmp.0 = getelementptr [50 x sbyte]* %ar, uint 0, int 5         ; <sbyte*> [#uses=2]
        %tmp.7 = getelementptr sbyte* %tmp.0, int 8             ; <sbyte*> [#uses=1]

together.  This patch actually allows us to simplify and generalize the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13415 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 22:09:22 +00:00
Brian Gaeke
7532e34537 Allow the user to set the LLVMINTERP environment variable as a workaround, for 
when they have to run a gccld shell script without having lli in their path.
This is intended to address Bug 289.

Also, emit the traditional syntax ${1+"$@"} for passing all of a shell script's
args to a subprocess. If you have arguments that have spaces in them, $* will
not preserve the quoting (i.e., the quoted string "foo bar" as an argument will
end up as two arguments "foo" "bar" to lli.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13414 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 21:47:36 +00:00
Brian Gaeke
e302a7eb43 Add support for copying bool constants to registers. 
Disable the code that copies long constants to registers - it looks fishy.
Implement some simple casts: integral, smaller than longs, and equal-width
 or narrowing only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 21:39:30 +00:00
Chris Lattner
e7a31c98db Codegen floating point stores of constants into integer instructions. This 
allows us to compile:

store float 10.0, float* %P

into:
        mov DWORD PTR [%EAX], 1092616192

instead of:

.CPItest_0:                                     # float 0x4024000000000000
.long   1092616192      # float 10
...
        fld DWORD PTR [.CPItest_0]
        fstp DWORD PTR [%EAX]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13409 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 21:18:15 +00:00
Brian Gaeke
2c9a94cd4f Add more casts. You can never have enough casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 21:10:28 +00:00
Chris Lattner
260195d2b1 Make comparisons against the null pointer as efficient as integer comparisons 
against zero.  In particular, don't emit:

        mov %ESI, 0
        cmp %ECX, %ESI

instead, emit:

       test %ECX, %ECX


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13407 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 19:55:55 +00:00
Chris Lattner
add68af031 PR implemented 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 19:23:05 +00:00
Chris Lattner
581dc80fd0 Bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13403 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 18:40:38 +00:00
Chris Lattner
da4230e41d New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13402 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 18:38:59 +00:00
Chris Lattner
13b29f6844 New testcase for PR336 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13401 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 15:38:50 +00:00
Chris Lattner
546516c3c0 Fix PR336: The instcombine pass asserts when visiting load instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13400 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 15:35:56 +00:00
John Criswell
3a386d4929 Regression test for PR#330. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13399 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 13:57:19 +00:00
Chris Lattner
2944bcaaed Add the enum corresponding to the source change I made earlier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13395 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-07 02:27:32 +00:00
John Criswell
4d8d49f1bb Bug fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13392 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-06 22:23:24 +00:00
John Criswell
8cb23dad20 Don't call getForwardedType() twice, as recommended by Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13391 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-06 22:15:47 +00:00
Chris Lattner
60083e2fc0 Use the new commandline flag to allow us to call bugpoint like this: 
bugpoint ... --tool-args -enable-correct-eh-support -regalloc=linearscan --args -- -foo

So that tool-args option gets the -enable-correct-eh-support -regalloc=linearscan flags instead of bugpoint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-06 22:05:35 +00:00
Chris Lattner
bf455c2360 Implement the new cl::PositionalEatsArgs flag, refactor code a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13388 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-06 22:04:31 +00:00
Chris Lattner
be801bf248 Add a new cl::PositionalEatsArgs flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13387 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-06 22:03:59 +00:00