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; RUN: opt -S < %s -gvn-hoist | FileCheck %s
declare void @llvm.sideeffect()
; GVN hoisting across a @llvm.sideeffect.
; CHECK-LABEL: scalarsHoisting
; CHECK: = fsub
; CHECK: br i1 %cmp,
; CHECK-NOT: fsub
define float @scalarsHoisting(float %d, float %m, float %a, i1 %cmp) {
entry:
br i1 %cmp, label %if.then, label %if.else
if.then:
call void @llvm.sideeffect()
%sub0 = fsub float %m, %a
%mul = fmul float %sub0, %d
br label %if.end
if.else:
%sub1 = fsub float %m, %a
%div = fdiv float %sub1, %d
br label %if.end
if.end:
%phi = phi float [ %mul, %if.then ], [ %div, %if.else ]
ret float %phi
}
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