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45 lines
1.0 KiB
LLVM
45 lines
1.0 KiB
LLVM
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; RUN: llc < %s -march=x86 -asm-verbose=false | FileCheck %s -check-prefix=FP-ELIM
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; RUN: llc < %s -march=x86 -asm-verbose=false -disable-fp-elim | FileCheck %s -check-prefix=NO-ELIM
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; RUN: llc < %s -march=x86 -asm-verbose=false -disable-non-leaf-fp-elim | FileCheck %s -check-prefix=NON-LEAF
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; Implement -momit-leaf-frame-pointer
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; rdar://7886181
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define i32 @t1() nounwind readnone {
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entry:
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; FP-ELIM: t1:
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; FP-ELIM-NEXT: movl
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; FP-ELIM-NEXT: ret
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; NO-ELIM: t1:
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; NO-ELIM-NEXT: pushl %ebp
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; NO-ELIM: popl %ebp
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; NO-ELIM-NEXT: ret
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; NON-LEAF: t1:
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; NON-LEAF-NEXT: movl
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; NON-LEAF-NEXT: ret
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ret i32 10
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}
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define void @t2() nounwind {
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entry:
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; FP-ELIM: t2:
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; FP-ELIM-NOT: pushl %ebp
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; FP-ELIM: ret
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; NO-ELIM: t2:
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; NO-ELIM-NEXT: pushl %ebp
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; NO-ELIM: popl %ebp
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; NO-ELIM-NEXT: ret
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; NON-LEAF: t2:
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; NON-LEAF-NEXT: pushl %ebp
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; NON-LEAF: popl %ebp
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; NON-LEAF-NEXT: ret
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tail call void @foo(i32 0) nounwind
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ret void
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}
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declare void @foo(i32)
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