int_sideeffect.ll
1.48 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S < %s -slp-vectorizer -slp-max-reg-size=128 -slp-min-reg-size=128 | FileCheck %s
declare void @llvm.sideeffect()
; SLP vectorization across a @llvm.sideeffect.
define void @test(float* %p) {
; CHECK-LABEL: @test(
; CHECK-NEXT: [[P0:%.*]] = getelementptr float, float* [[P:%.*]], i64 0
; CHECK-NEXT: [[P1:%.*]] = getelementptr float, float* [[P]], i64 1
; CHECK-NEXT: [[P2:%.*]] = getelementptr float, float* [[P]], i64 2
; CHECK-NEXT: [[P3:%.*]] = getelementptr float, float* [[P]], i64 3
; CHECK-NEXT: call void @llvm.sideeffect()
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[P0]] to <4 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
; CHECK-NEXT: call void @llvm.sideeffect()
; CHECK-NEXT: [[TMP3:%.*]] = bitcast float* [[P0]] to <4 x float>*
; CHECK-NEXT: store <4 x float> [[TMP2]], <4 x float>* [[TMP3]], align 4
; CHECK-NEXT: ret void
;
%p0 = getelementptr float, float* %p, i64 0
%p1 = getelementptr float, float* %p, i64 1
%p2 = getelementptr float, float* %p, i64 2
%p3 = getelementptr float, float* %p, i64 3
%l0 = load float, float* %p0
%l1 = load float, float* %p1
%l2 = load float, float* %p2
call void @llvm.sideeffect()
%l3 = load float, float* %p3
store float %l0, float* %p0
call void @llvm.sideeffect()
store float %l1, float* %p1
store float %l2, float* %p2
store float %l3, float* %p3
ret void
}