95ba0e4563
I noticed we weren't propagating tail flags on calls when FortifiedLibCallSimplifier.optimizeCall() was replacing calls to runtime checked calls to the non-checked routines (when safe to do so). Make sure to check this before replacing the original calls! Also, avoid any libcall transforms when notail/musttail is present. PR46734 Fixes: https://github.com/llvm/llvm-project/issues/46079 Reviewed By: jdoerfert Differential Revision: https://reviews.llvm.org/D107872
24 lines
794 B
LLVM
24 lines
794 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -mtriple=i686-apple-macosx -instcombine %s | FileCheck %s
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declare x86_fp80 @fabsl(x86_fp80)
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define x86_fp80 @replace_fabs_call_f80(x86_fp80 %x) {
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; CHECK-LABEL: @replace_fabs_call_f80(
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; CHECK-NEXT: [[FABSL:%.*]] = tail call x86_fp80 @llvm.fabs.f80(x86_fp80 [[X:%.*]])
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; CHECK-NEXT: ret x86_fp80 [[FABSL]]
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;
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%fabsl = tail call x86_fp80 @fabsl(x86_fp80 %x)
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ret x86_fp80 %fabsl
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}
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define x86_fp80 @fmf_replace_fabs_call_f80(x86_fp80 %x) {
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; CHECK-LABEL: @fmf_replace_fabs_call_f80(
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; CHECK-NEXT: [[FABSL:%.*]] = tail call nnan x86_fp80 @llvm.fabs.f80(x86_fp80 [[X:%.*]])
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; CHECK-NEXT: ret x86_fp80 [[FABSL]]
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;
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%fabsl = tail call nnan x86_fp80 @fabsl(x86_fp80 %x)
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ret x86_fp80 %fabsl
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}
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