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25f7df1bce
prologue and epilogue if the adjustment is 8. Similarly, use pushl / popl if the adjustment is 4 in 32-bit mode. In the epilogue, takes care to pop to a caller-saved register that's not live at the exit (either return or tailcall instruction). rdar://8771137 llvm-svn: 122783
32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s
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define void @foo() nounwind ssp {
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entry:
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; CHECK: foo
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; CHECK: pushq
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; CHECK: int $3
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call void asm sideeffect alignstack "# top of block", "~{dirflag},~{fpsr},~{flags},~{edi},~{esi},~{edx},~{ecx},~{eax}"() nounwind
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call void asm sideeffect alignstack ".file \22small.c\22", "~{dirflag},~{fpsr},~{flags}"() nounwind
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call void asm sideeffect alignstack ".line 3", "~{dirflag},~{fpsr},~{flags}"() nounwind
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call void asm sideeffect alignstack "int $$3", "~{dirflag},~{fpsr},~{flags},~{memory}"() nounwind
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br label %return
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return: ; preds = %entry
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ret void
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}
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define void @bar() nounwind ssp {
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entry:
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; CHECK: bar
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; CHECK-NOT: pushq
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; CHECK: int $3
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call void asm sideeffect "# top of block", "~{dirflag},~{fpsr},~{flags},~{edi},~{esi},~{edx},~{ecx},~{eax}"() nounwind
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call void asm sideeffect ".file \22small.c\22", "~{dirflag},~{fpsr},~{flags}"() nounwind
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call void asm sideeffect ".line 3", "~{dirflag},~{fpsr},~{flags}"() nounwind
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call void asm sideeffect "int $$3", "~{dirflag},~{fpsr},~{flags},~{memory}"() nounwind
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br label %return
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return: ; preds = %entry
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ret void
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}
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