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| author | Evan Cheng <evan.cheng@apple.com> | 2010-08-17 01:20:36 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-08-17 01:20:36 +0000 |
| commit | 97b9b97853d7e4fbb5c8460ef28126013c76e9a9 (patch) | |
| tree | 00177661907fa80d2ee615063908e042e57911b9 /test/CodeGen/X86/lsr-reuse.ll | |
| parent | 922157c83440e0197e7fd962cf7030491a8069b1 (diff) | |
| download | llvm-97b9b97853d7e4fbb5c8460ef28126013c76e9a9.tar.gz llvm-97b9b97853d7e4fbb5c8460ef28126013c76e9a9.tar.bz2 llvm-97b9b97853d7e4fbb5c8460ef28126013c76e9a9.tar.xz | |
PHI elimination should not break back edge. It can cause some significant code placement issues. rdar://8263994
good:
LBB0_2:
mov r2, r0
. . .
mov r1, r2
bne LBB0_2
bad:
LBB0_2:
mov r2, r0
. . .
@ BB#3:
mov r1, r2
b LBB0_2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111221 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/lsr-reuse.ll')
| -rw-r--r-- | test/CodeGen/X86/lsr-reuse.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/CodeGen/X86/lsr-reuse.ll b/test/CodeGen/X86/lsr-reuse.ll index b7e69b84bf..d2ff58be10 100644 --- a/test/CodeGen/X86/lsr-reuse.ll +++ b/test/CodeGen/X86/lsr-reuse.ll @@ -464,7 +464,7 @@ bb5: ; preds = %bb3, %entry ; And the one at %bb68, where we want to be sure to use superhero mode: -; CHECK: BB10_10: +; CHECK: BB10_9: ; CHECK-NEXT: movaps 48(%r{{[^,]*}}), %xmm{{.*}} ; CHECK-NEXT: mulps %xmm{{.*}}, %xmm{{.*}} ; CHECK-NEXT: movaps 32(%r{{[^,]*}}), %xmm{{.*}} @@ -484,7 +484,7 @@ bb5: ; preds = %bb3, %entry ; CHECK-NEXT: addq $64, %r{{.*}} ; CHECK-NEXT: addq $64, %r{{.*}} ; CHECK-NEXT: addq $-16, %r{{.*}} -; CHECK-NEXT: BB10_11: +; CHECK-NEXT: BB10_10: ; CHECK-NEXT: cmpq $15, %r{{.*}} ; CHECK-NEXT: jg |