git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108689
91177308-0d34-0410-b5e6-
96231b3b80d8
--- /dev/null
+; 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