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; RUN: llc < %s -march=x86 -asm-verbose=false | FileCheck %s -check-prefix=FP-ELIM
; RUN: llc < %s -march=x86 -asm-verbose=false -disable-fp-elim | FileCheck %s -check-prefix=NO-ELIM
; Implement -momit-leaf-frame-pointer
; rdar://7886181
define i32 @t1() nounwind readnone {
entry:
; FP-ELIM-LABEL: t1:
; FP-ELIM-NEXT: movl
; FP-ELIM-NEXT: ret
; NO-ELIM-LABEL: t1:
; NO-ELIM-NEXT: pushl %ebp
; NO-ELIM: popl %ebp
; NO-ELIM-NEXT: ret
ret i32 10
}
define void @t2() nounwind {
entry:
; FP-ELIM-LABEL: t2:
; FP-ELIM-NOT: pushl %ebp
; FP-ELIM: ret
; NO-ELIM-LABEL: t2:
; NO-ELIM-NEXT: pushl %ebp
; NO-ELIM: popl %ebp
; NO-ELIM-NEXT: ret
tail call void @foo(i32 0) nounwind
ret void
}
define i32 @t3() "no-frame-pointer-elim-non-leaf" nounwind readnone {
entry:
; FP-ELIM-LABEL: t3:
; FP-ELIM-NEXT: movl
; FP-ELIM-NEXT: ret
; NO-ELIM-LABEL: t3:
; NO-ELIM-NEXT: pushl %ebp
; NO-ELIM: popl %ebp
; NO-ELIM-NEXT: ret
ret i32 10
}
define void @t4() "no-frame-pointer-elim-non-leaf" nounwind {
entry:
; FP-ELIM-LABEL: t4:
; FP-ELIM-NEXT: pushl %ebp
; FP-ELIM: popl %ebp
; FP-ELIM-NEXT: ret
; NO-ELIM-LABEL: t4:
; NO-ELIM-NEXT: pushl %ebp
; NO-ELIM: popl %ebp
; NO-ELIM-NEXT: ret
tail call void @foo(i32 0) nounwind
ret void
}
declare void @foo(i32)
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