blob: bd92b4a29c056f399a38f0b0d7ce9e3828a82d0c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
; RUN: opt -instcombine -S -disable-simplify-libcalls < %s | FileCheck %s
; rdar://10466410
; Instcombine tries to fold (fptrunc (sqrt (fpext x))) -> (sqrtf x), but this
; shouldn't fold when sqrtf isn't available.
define float @foo(float %f) uwtable ssp {
entry:
; CHECK: %conv = fpext float %f to double
; CHECK: %call = tail call double @sqrt(double %conv)
; CHECK: %conv1 = fptrunc double %call to float
%conv = fpext float %f to double
%call = tail call double @sqrt(double %conv)
%conv1 = fptrunc double %call to float
ret float %conv1
}
declare double @sqrt(double)
|
