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legalization time. Since at legalization time there is no mapping from SDNode back to the corresponding LLVM instruction and the return SDNode is target specific, this requires a target hook to check for eligibility. Only x86 and ARM support this form of sibcall optimization right now. rdar://8707777 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120501 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
548 B
LLVM
25 lines
548 B
LLVM
; RUN: llc < %s -march=x86-64 | FileCheck %s
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; Sibcall optimization of expanded libcalls.
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; rdar://8707777
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define double @foo(double %a) nounwind readonly ssp {
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entry:
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; CHECK: foo:
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; CHECK: jmp {{_?}}sin
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%0 = tail call double @sin(double %a) nounwind readonly
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ret double %0
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}
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define float @bar(float %a) nounwind readonly ssp {
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; CHECK: bar:
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; CHECK: jmp {{_?}}sinf
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entry:
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%0 = tail call float @sinf(float %a) nounwind readonly
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ret float %0
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}
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declare float @sinf(float) nounwind readonly
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declare double @sin(double) nounwind readonly
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