Chris Lattner
ed75a9c636
remove some old hacky code that tried to infer whether a store
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occured in a pattern, but failed miserably. The new code works for
any instruction that has a store in its pattern, including all the
x86 mem op mem instructions.
The only target-independent code that uses this is branch folding,
so this won't change anything in practice.
llvm-svn: 45648
2008-01-06 02:16:26 +00:00
Chris Lattner
51500436de
rearrange some code to allow inferring instr info from the pattern of the instr, but don't do so yet.
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llvm-svn: 45647
2008-01-06 01:53:37 +00:00
Chris Lattner
7414f541ca
improve const correctness.
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llvm-svn: 45646
2008-01-06 01:52:22 +00:00
Chris Lattner
e9f0c9b6f9
Split the impl of CodeGenInstruction out to its own .cpp file, add a getName() accessor.
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llvm-svn: 45645
2008-01-06 01:35:39 +00:00
Chris Lattner
e0f76407f9
final cleanups.
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llvm-svn: 45644
2008-01-06 01:21:51 +00:00
Chris Lattner
4eecc7c085
further simplifications and cleanup
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llvm-svn: 45643
2008-01-06 01:20:13 +00:00
Chris Lattner
1d89a5f45d
simplify some code
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llvm-svn: 45642
2008-01-06 01:12:44 +00:00
Chris Lattner
1a15091e2d
rename CodegenDAGPatterns -> CodeGenDAGPatterns
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llvm-svn: 45641
2008-01-06 01:10:31 +00:00
Chris Lattner
5675305d1a
split enum emission out from InstrInfoEmitter into it's own tblgen backend.
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llvm-svn: 45640
2008-01-06 00:49:05 +00:00
Chris Lattner
95fa0c3c8d
fix build on case sensitive file systems.
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llvm-svn: 45639
2008-01-05 23:37:52 +00:00
Bill Wendling
703a1fc174
Fix comment.
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llvm-svn: 45638
2008-01-05 23:30:51 +00:00
Chris Lattner
60aa495a41
make this build with newer gcc's
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llvm-svn: 45637
2008-01-05 23:29:51 +00:00
Chris Lattner
e61657979a
now that computing CodegenDAGPatterns doesn't implicitly print stuff
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out, DAGISelEmitter can compute it in its ctor, which simplifies some code.
Now we can use CodegenDAGPatterns in other parts of tblgen that want access
to dag pattern info, woo!
llvm-svn: 45636
2008-01-05 22:58:54 +00:00
Chris Lattner
521466d0d1
move Node Transformation printing from CodeGenDAGPatterns -> DAGISelEmitter.
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The only difference in output is that we now print them in alphabetical
order instead of reverse alphabetical order.
llvm-svn: 45635
2008-01-05 22:54:53 +00:00
Chris Lattner
2fb8b5aaf9
move predicate printing code from CodeGenDAGPatterns -> DAGISelEmitter.
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llvm-svn: 45634
2008-01-05 22:43:57 +00:00
Chris Lattner
a66efc2de9
fix a fixme by improving const correctness.
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llvm-svn: 45633
2008-01-05 22:30:17 +00:00
Chris Lattner
3cd393b5ab
change getQualifiedName to be a global function.
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Split the pattern parsing code out from the dag isel emitter into it's own file.
No functionality change.
llvm-svn: 45632
2008-01-05 22:25:12 +00:00
Nate Begeman
ff49dc59ff
Remove an incorrect optimization that is performed correctly by
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the target independent legalizer.
llvm-svn: 45631
2008-01-05 20:51:30 +00:00
Nate Begeman
a6e9de35ae
If custom lowering of insert element fails, the result Val will be 0.
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Don't overwrite a variable used by the fallthrough code path in this
case.
llvm-svn: 45630
2008-01-05 20:47:37 +00:00
Chris Lattner
9f51583a6a
Fix build issue on certain compilers.
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llvm-svn: 45629
2008-01-05 20:15:42 +00:00
Gordon Henriksen
f4e137838b
Refactoring the x86 and x86-64 calling convention implementations,
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unifying the copied algorithms and saving over 500 LOC. There should
be no functionality change, but please test on your favorite x86
target.
llvm-svn: 45627
2008-01-05 16:56:59 +00:00
Bill Wendling
ecf0f85985
Chris and Evan noticed that this check was compleatly fubared. I was
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checking that there was a from a global instead of a load from the stub
for a global, which is the one that's safe to hoist.
Consider this program:
volatile char G[100];
int B(char *F, int N) {
for (; N > 0; --N)
F[N] = G[N];
}
In static mode, we shouldn't be hoisting the load from G:
$ llc -relocation-model=static -o - a.bc -march=x86 -machine-licm
LBB1_1: # bb.preheader
leal -1(%eax), %edx
testl %edx, %edx
movl $1, %edx
cmovns %eax, %edx
xorl %esi, %esi
LBB1_2: # bb
movb _G(%eax), %bl
movb %bl, (%ecx,%eax)
llvm-svn: 45626
2008-01-05 09:18:04 +00:00
Chris Lattner
0d444b96ac
The current impl is really trivial, add some comments about how it can be made better.
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llvm-svn: 45625
2008-01-05 06:47:58 +00:00
Chris Lattner
9428a7d97f
allow sinking to be enabled for the jit
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llvm-svn: 45624
2008-01-05 06:14:16 +00:00
Chris Lattner
f1493e7b58
enable sinking and licm of loads from the argument area. I'd like to enable this
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for remat, but can't due to an RA bug.
llvm-svn: 45623
2008-01-05 06:10:42 +00:00
Chris Lattner
aad6c09a14
simplify some code by using shorter accessors.
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llvm-svn: 45622
2008-01-05 05:28:30 +00:00
Chris Lattner
6e948ea2e6
revert my previous patch.
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llvm-svn: 45621
2008-01-05 05:26:26 +00:00
Chris Lattner
86ca5928b5
factor some code better to avoid redundancy between
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isReallySideEffectFree and isReallyTriviallyReMaterializable. Why is a load from
a global considered side-effect-free but not rematable?
llvm-svn: 45620
2008-01-05 05:19:56 +00:00
Chris Lattner
6ad8e32f6b
getting the pic base has no side effects.
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llvm-svn: 45618
2008-01-05 03:54:32 +00:00
Chris Lattner
9e7943159e
don't sink anything with side effects, this makes lots of stuff work, but sinks almost nothing.
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llvm-svn: 45617
2008-01-05 02:33:22 +00:00
Evan Cheng
759f389846
X86 JIT PIC jumptable support.
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llvm-svn: 45616
2008-01-05 02:26:58 +00:00
Chris Lattner
377c720459
fix a common crash.
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llvm-svn: 45614
2008-01-05 01:39:17 +00:00
Chris Lattner
7e1c3aa702
remove a couple more unsafe xforms in the face of overflow.
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llvm-svn: 45613
2008-01-05 01:22:42 +00:00
Chris Lattner
983697dfac
remove the (x-y) < 0 comparison xform, it miscompiles
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things that are not equality comparisons, for example:
(2147479553+4096)-2147479553 < 0 != (2147479553+4096) < 2147479553
llvm-svn: 45612
2008-01-05 01:18:20 +00:00
Owen Anderson
8c8c5906f8
I should not be allowed to commit when sleepy.
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llvm-svn: 45608
2008-01-05 00:48:55 +00:00
Owen Anderson
6c7beb1748
Didn't mean to commit this.
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llvm-svn: 45607
2008-01-05 00:43:37 +00:00
Owen Anderson
4cce45354c
Didn't mean to commit this.
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llvm-svn: 45606
2008-01-05 00:42:45 +00:00
Evan Cheng
5b9282f3b5
Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed.
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llvm-svn: 45605
2008-01-05 00:41:47 +00:00
Owen Anderson
2adf8c5533
Move some more functionality from MRegisterInfo to TargetInstrInfo.
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llvm-svn: 45603
2008-01-04 23:57:37 +00:00
Bill Wendling
93556af6c4
Don't recalculate the loop info and loop dominators analyses if they're
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preserved.
llvm-svn: 45596
2008-01-04 20:54:55 +00:00
Wojciech Matyjewicz
2502769cf3
fix typo
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llvm-svn: 45595
2008-01-04 20:04:08 +00:00
Wojciech Matyjewicz
9ec15f974f
fix typo
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llvm-svn: 45594
2008-01-04 20:02:18 +00:00
Duncan Sands
8a7547d26f
Testcase with non-integer "bitfields" (in quotes,
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since they didn't actually need to be bitfields,
though they are marked as such).
llvm-svn: 45588
2008-01-04 17:31:56 +00:00
Gordon Henriksen
bc89f424b7
Fix a typo in llvm.mli noticed by Alain Frisch.
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llvm-svn: 45585
2008-01-04 13:21:02 +00:00
Duncan Sands
93c581f2a8
Testcase for PR1386.
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llvm-svn: 45583
2008-01-04 13:15:39 +00:00
Bill Wendling
9763bb186b
doc_code-ify some code in this doc.
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llvm-svn: 45581
2008-01-04 12:04:32 +00:00
Gordon Henriksen
35d9fcb448
Quote a path in the Ocaml makefile which is likely to include spaces on Windows.
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llvm-svn: 45580
2008-01-04 11:55:57 +00:00
Evan Cheng
6dbcca7903
Unbreak tailcall opt in JIT.
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llvm-svn: 45576
2008-01-04 10:50:28 +00:00
Evan Cheng
7322e4dec4
X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support.
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llvm-svn: 45575
2008-01-04 10:46:51 +00:00
Bill Wendling
4f3a9df125
80-column violations.
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llvm-svn: 45574
2008-01-04 08:59:18 +00:00