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Diffstat (limited to 'test/CodeGen/X86/2011-06-14-PreschedRegalias.ll')
| -rw-r--r-- | test/CodeGen/X86/2011-06-14-PreschedRegalias.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2011-06-14-PreschedRegalias.ll b/test/CodeGen/X86/2011-06-14-PreschedRegalias.ll new file mode 100644 index 0000000000..690c27f3ed --- /dev/null +++ b/test/CodeGen/X86/2011-06-14-PreschedRegalias.ll @@ -0,0 +1,17 @@ +; RUN: llc < %s -march=x86-64 -stress-sched | FileCheck %s +; Test interference between physreg aliases during preRAsched. +; mul wants an operand in AL, but call clobbers it. + +define i8 @f(i8 %v1, i8 %v2) nounwind { +entry: +; CHECK: callq +; CHECK: movb %{{.*}}, %al +; CHECK: mulb +; CHECK: mulb + %rval = tail call i8 @bar() nounwind + %m1 = mul i8 %v1, %v2 + %m2 = mul i8 %m1, %rval + ret i8 %m2 +} + +declare i8 @bar() |