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| author | Evan Cheng <evan.cheng@apple.com> | 2007-09-11 22:34:47 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-09-11 22:34:47 +0000 |
| commit | 6d6d352ed9bf69f06d8084b76042d7e9b3980cb5 (patch) | |
| tree | 330dadf663f20b5312d14120cd31f3c204f3d452 /test/CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll | |
| parent | 01537324ba3fa6af36428c5f0d4f07fdd76fb99f (diff) | |
| download | external_llvm-6d6d352ed9bf69f06d8084b76042d7e9b3980cb5.zip external_llvm-6d6d352ed9bf69f06d8084b76042d7e9b3980cb5.tar.gz external_llvm-6d6d352ed9bf69f06d8084b76042d7e9b3980cb5.tar.bz2 | |
Sometimes a MI can define a register as well as defining a super-register at the
same time. Do not mark the "smaller" def as dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41871 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll b/test/CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll new file mode 100644 index 0000000..bb7aba4 --- /dev/null +++ b/test/CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll @@ -0,0 +1,9 @@ +; RUN: llvm-as < %s | llc -march=ppc64 + + %struct.TCMalloc_SpinLock = type { i32 } + +define void @_ZN17TCMalloc_SpinLock4LockEv(%struct.TCMalloc_SpinLock* %this) { +entry: + %tmp3 = call i32 asm sideeffect "1: lwarx $0, 0, $1\0A\09stwcx. $2, 0, $1\0A\09bne- 1b\0A\09isync", "=&r,=*r,r,1,~{dirflag},~{fpsr},~{flags},~{memory}"( i32** null, i32 1, i32* null ) ; <i32> [#uses=0] + unreachable +} |