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Add positive test for sqrt "partial inlining". NFC. 

llvm-svn: 291001
This commit is contained in:
Michael Kuperstein 2017-01-04 20:48:30 +00:00
parent 6309895770
commit fc74da13a9
1 changed files with 23 additions and 0 deletions
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23
llvm/test/Transforms/PartiallyInlineLibCalls/good-prototype.ll Normal file
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; RUN: opt -S -partially-inline-libcalls < %s | FileCheck %s
; RUN: opt -S -passes=partially-inline-libcalls < %s | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
define float @f(float %val) {
; CHECK: @f
; CHECK: entry:
; CHECK-NEXT: %[[RES:.+]] = tail call float @sqrtf(float %val) #0
; CHECK-NEXT: %[[CMP:.+]] = fcmp oeq float %[[RES]], %[[RES]]
; CHECK-NEXT: br i1 %[[CMP]], label %[[EXIT:.+]], label %[[CALL:.+]]
; CHECK: [[CALL]]:
; CHECK-NEXT: %[[RES2:.+]] = tail call float @sqrtf(float %val){{$}}
; CHECK-NEXT: br label %[[EXIT]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: %[[RET:.+]] = phi float [ %[[RES]], %entry ], [ %[[RES2]], %[[CALL]] ]
; CHECK-NEXT: ret float %[[RET]]
entry:
%res = tail call float @sqrtf(float %val)
ret float %res
}
declare float @sqrtf(float)