Testcase for r108687.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108689 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2010-07-19 08:14:26 +00:00
parent 54026c0f1b
commit aa52fd10ab

View File

@ -0,0 +1,16 @@
; RUN: opt -S -instcombine %s | FileCheck %s
define float @foo(float %x) nounwind readnone ssp {
entry:
; CHECK-NOT: fpext
; CHECK-NOT: sqrt(
; CHECK: sqrtf(
; CHECK-NOT: fptrunc
%conv = fpext float %x to double ; <double> [#uses=1]
%call = tail call double @sqrt(double %conv) nounwind ; <double> [#uses=1]
%conv1 = fptrunc double %call to float ; <float> [#uses=1]
; CHECK: ret float
ret float %conv1
}
declare double @sqrt(double) readnone