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| author | Michael Liao <michael.liao@intel.com> | 2013-03-07 01:01:29 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2013-03-07 01:01:29 +0000 |
| commit | fe9dbe0066ba4a35cb68fb281e6f6649ffa85ae9 (patch) | |
| tree | fab477c0698725f0d78685f1a26f2c6cf39fc6ae /test/CodeGen/X86/atomic-minmax-i6432.ll | |
| parent | b7656a9cc4bf36752df38e7c02b910c9390b9c39 (diff) | |
| download | llvm-fe9dbe0066ba4a35cb68fb281e6f6649ffa85ae9.tar.gz llvm-fe9dbe0066ba4a35cb68fb281e6f6649ffa85ae9.tar.bz2 llvm-fe9dbe0066ba4a35cb68fb281e6f6649ffa85ae9.tar.xz | |
Fix two remaining issue after fixing PR15355 when CMOV is not available
- Phi nodes should be replaced/updated after lowering CMOV into branch
because 'mainMBB' updating operand in Phi node is changed.
- Add EFLAGS in livein before lowering the 2nd CMOV. It's necessary as
we will reuse the EFLAGS generated before the 1st lowered CMOV, which
won't clobber EFLAGS. However, we need explicitly specify that.
- '-attr=-cmov' test case are added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176598 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/atomic-minmax-i6432.ll')
| -rw-r--r-- | test/CodeGen/X86/atomic-minmax-i6432.ll | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/test/CodeGen/X86/atomic-minmax-i6432.ll b/test/CodeGen/X86/atomic-minmax-i6432.ll index 1a6db7781f..62f784f696 100644 --- a/test/CodeGen/X86/atomic-minmax-i6432.ll +++ b/test/CodeGen/X86/atomic-minmax-i6432.ll @@ -1,4 +1,5 @@ ; RUN: llc -march=x86 -mattr=+cmov -mtriple=i386-pc-linux -verify-machineinstrs < %s | FileCheck %s -check-prefix=LINUX +; RUN: llc -march=x86 -mattr=-cmov -mtriple=i386-pc-linux -verify-machineinstrs < %s | FileCheck %s -check-prefix=NOCMOV ; RUN: llc -march=x86 -mtriple=i386-macosx -relocation-model=pic -verify-machineinstrs < %s | FileCheck %s -check-prefix=PIC @sc64 = external global i64 @@ -16,6 +17,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: setl +; NOCMOV: cmpl +; NOCMOV: setl +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] %2 = atomicrmw min i64* @sc64, i64 6 acquire ; LINUX: [[LABEL:.LBB[0-9]+_[0-9]+]] ; LINUX: cmpl @@ -27,6 +38,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: setg +; NOCMOV: cmpl +; NOCMOV: setg +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] %3 = atomicrmw umax i64* @sc64, i64 7 acquire ; LINUX: [[LABEL:.LBB[0-9]+_[0-9]+]] ; LINUX: cmpl @@ -38,6 +59,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: setb +; NOCMOV: cmpl +; NOCMOV: setb +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] %4 = atomicrmw umin i64* @sc64, i64 8 acquire ; LINUX: [[LABEL:.LBB[0-9]+_[0-9]+]] ; LINUX: cmpl @@ -49,6 +80,16 @@ define void @atomic_maxmin_i6432() { ; LINUX: lock ; LINUX-NEXT: cmpxchg8b ; LINUX: jne [[LABEL]] +; NOCMOV: [[LABEL:.LBB[0-9]+_[0-9]+]] +; NOCMOV: cmpl +; NOCMOV: seta +; NOCMOV: cmpl +; NOCMOV: seta +; NOCMOV: jne +; NOCMOV: jne +; NOCMOV: lock +; NOCMOV-NEXT: cmpxchg8b +; NOCMOV: jne [[LABEL]] ret void } |