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54 lines
1.3 KiB
LLVM
54 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=i686-- -asm-verbose=false | FileCheck %s -check-prefixes=FP-ELIM,ANY
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; RUN: llc < %s -mtriple=i686-- -asm-verbose=false -frame-pointer=all | FileCheck %s -check-prefixes=NO-ELIM,ANY
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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-LABEL: t1:
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; FP-ELIM-NEXT: movl
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; FP-ELIM-NEXT: ret
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; NO-ELIM-LABEL: 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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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-LABEL: t2:
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; FP-ELIM-NOT: pushl %ebp
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; FP-ELIM: ret
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; NO-ELIM-LABEL: 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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tail call void @foo(i32 0) nounwind
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ret void
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}
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; The local non-leaf attribute takes precendece over the command line flag.
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define i32 @t3() "frame-pointer"="non-leaf" nounwind readnone {
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entry:
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; ANY-ELIM-LABEL: t3:
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; ANY-ELIM-NEXT: movl
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; ANY-ELIM-NEXT: ret
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ret i32 10
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}
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define void @t4() "frame-pointer"="non-leaf" nounwind {
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entry:
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; ANY-ELIM-LABEL: t4:
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; ANY-ELIM-NEXT: pushl %ebp
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; ANY-ELIM: popl %ebp
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; ANY-ELIM-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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