blob: 1dccaab5e5f7d1ed0157ffa113ba358f500e1f4f [file] [log] [blame]
; RUN: opt -S < %s -early-cse | FileCheck %s
declare void @llvm.sideeffect()
; Store-to-load forwarding across a @llvm.sideeffect.
; CHECK-LABEL: s2l
; CHECK-NOT: load
define float @s2l(float* %p) {
store float 0.0, float* %p
call void @llvm.sideeffect()
%t = load float, float* %p
ret float %t
}
; Redundant load elimination across a @llvm.sideeffect.
; CHECK-LABEL: rle
; CHECK: load
; CHECK-NOT: load
define float @rle(float* %p) {
%r = load float, float* %p
call void @llvm.sideeffect()
%s = load float, float* %p
%t = fadd float %r, %s
ret float %t
}