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Diffstat (limited to 'test/CodeGen/X86/stack-align-memcpy.ll')
| -rw-r--r-- | test/CodeGen/X86/stack-align-memcpy.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/X86/stack-align-memcpy.ll b/test/CodeGen/X86/stack-align-memcpy.ll new file mode 100644 index 0000000000..74945e5bb1 --- /dev/null +++ b/test/CodeGen/X86/stack-align-memcpy.ll @@ -0,0 +1,18 @@ +; RUN: llc < %s -force-align-stack -mtriple i386-apple-darwin -mcpu=i486 | FileCheck %s + +%struct.foo = type { [88 x i8] } + +; PR15249 +; We can't use rep;movsl here because it clobbers the base pointer in %esi. +define void @test1(%struct.foo* nocapture %x, i32 %y) nounwind { + %dynalloc = alloca i8, i32 %y, align 1 + call void @bar(i8* %dynalloc, %struct.foo* align 4 byval %x) + ret void + +; CHECK: test1: +; CHECK: andl $-16, %esp +; CHECK: movl %esp, %esi +; CHECK-NOT: rep;movsl +} + +declare void @bar(i8* nocapture, %struct.foo* align 4 byval) nounwind |