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| author | Evan Cheng <evan.cheng@apple.com> | 2008-03-10 08:11:32 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-03-10 08:11:32 +0000 |
| commit | 4ff3f1cc573594058a98ffa8f198a81739c523b1 (patch) | |
| tree | fd0059312aefd7ea642ea5adb856429f8e590c1f /test/CodeGen/X86/coalescer-commute5.ll | |
| parent | ff247d2ed41dac50d99c5ff534b12f33bb57310a (diff) | |
| download | external_llvm-4ff3f1cc573594058a98ffa8f198a81739c523b1.zip external_llvm-4ff3f1cc573594058a98ffa8f198a81739c523b1.tar.gz external_llvm-4ff3f1cc573594058a98ffa8f198a81739c523b1.tar.bz2 | |
- Fix a subtle bug in RemoveCopyByCommutingDef. ALR is the live range where the source is defined; BLR is the live range which is defined by the copy.
If ALR and BLR overlaps and end of BLR extends beyond end of ALR, e.g.
A = or A, B
...
B = A
...
C = A<kill>
...
= B
then do not add kills of A to the newly created B interval.
- Also fix some kill info update bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48141 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/coalescer-commute5.ll')
| -rw-r--r-- | test/CodeGen/X86/coalescer-commute5.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/X86/coalescer-commute5.ll b/test/CodeGen/X86/coalescer-commute5.ll new file mode 100644 index 0000000..c730ea7 --- /dev/null +++ b/test/CodeGen/X86/coalescer-commute5.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | llc -mtriple=i686-apple-darwin -mattr=+sse2 | not grep movaps + +define i32 @t() { +entry: + br i1 true, label %bb1664, label %bb1656 +bb1656: ; preds = %entry + ret i32 0 +bb1664: ; preds = %entry + %tmp4297 = bitcast <16 x i8> zeroinitializer to <2 x i64> ; <<2 x i64>> [#uses=2] + %tmp4351 = call <16 x i8> @llvm.x86.sse2.pcmpeq.b( <16 x i8> zeroinitializer, <16 x i8> zeroinitializer ) nounwind readnone ; <<16 x i8>> [#uses=0] + br i1 false, label %bb5310, label %bb4743 +bb4743: ; preds = %bb1664 + %tmp4360.not28 = or <2 x i64> zeroinitializer, %tmp4297 ; <<2 x i64>> [#uses=1] + br label %bb5310 +bb5310: ; preds = %bb4743, %bb1664 + %tmp4360.not28.pn = phi <2 x i64> [ %tmp4360.not28, %bb4743 ], [ %tmp4297, %bb1664 ] ; <<2 x i64>> [#uses=1] + %tmp4415.not.pn = or <2 x i64> zeroinitializer, %tmp4360.not28.pn ; <<2 x i64>> [#uses=0] + ret i32 0 +} + +declare <16 x i8> @llvm.x86.sse2.pcmpeq.b(<16 x i8>, <16 x i8>) nounwind readnone |