derek.holloway
7502bf64a4
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101 lines
3.5 KiB
LLVM
101 lines
3.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -passes='early-cse<memssa>' -S %s | FileCheck %s
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declare void @foo(ptr)
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define ptr @align_replacement_does_not_have_align_metadata(ptr noalias %p) {
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; CHECK-LABEL: define ptr @align_replacement_does_not_have_align_metadata(
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; CHECK-SAME: ptr noalias [[P:%.*]]) {
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; CHECK-NEXT: [[L_1:%.*]] = load ptr, ptr [[P]], align 8
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; CHECK-NEXT: call void @foo(ptr [[L_1]])
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[L_1]], i64 4
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; CHECK-NEXT: store ptr [[GEP]], ptr [[P]], align 8
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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%l.1 = load ptr, ptr %p, align 8
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call void @foo(ptr %l.1)
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%l.2 = load ptr, ptr %p, align 8
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%gep = getelementptr i8, ptr %l.2, i64 4
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store ptr %gep, ptr %p, align 8
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%l.3 = load ptr, ptr %p, align 8, !align !0
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ret ptr %l.3
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}
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define ptr @align_replacement_does_not_have_align_metadata2(ptr noalias %p) {
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; CHECK-LABEL: define ptr @align_replacement_does_not_have_align_metadata2(
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; CHECK-SAME: ptr noalias [[P:%.*]]) {
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; CHECK-NEXT: [[L_1:%.*]] = load ptr, ptr [[P]], align 8
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[L_1]], i64 4
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; CHECK-NEXT: store ptr [[GEP]], ptr [[P]], align 8
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; CHECK-NEXT: ret ptr [[GEP]]
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;
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%l.1 = load ptr, ptr %p, align 8
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%gep = getelementptr i8, ptr %l.1, i64 4
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store ptr %gep, ptr %p, align 8
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%l.2 = load ptr, ptr %p, align 8, !align !0
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ret ptr %l.2
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}
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define ptr @align_replacement_has_same_alignment(ptr noalias %p) {
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; CHECK-LABEL: define ptr @align_replacement_has_same_alignment(
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; CHECK-SAME: ptr noalias [[P:%.*]]) {
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; CHECK-NEXT: [[L_1:%.*]] = load ptr, ptr [[P]], align 8, !align [[META0:![0-9]+]]
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; CHECK-NEXT: call void @foo(ptr [[L_1]])
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; CHECK-NEXT: ret ptr [[L_1]]
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;
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%l.1 = load ptr, ptr %p, align 8, !align !0
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call void @foo(ptr %l.1)
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%l.2 = load ptr, ptr %p, align 8, !align !0
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ret ptr %l.2
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}
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define ptr @align_replacement_has_smaller_alignment(ptr noalias %p) {
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; CHECK-LABEL: define ptr @align_replacement_has_smaller_alignment(
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; CHECK-SAME: ptr noalias [[P:%.*]]) {
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; CHECK-NEXT: [[L_1:%.*]] = load ptr, ptr [[P]], align 8, !align [[META0]]
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; CHECK-NEXT: call void @foo(ptr [[L_1]])
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; CHECK-NEXT: ret ptr [[L_1]]
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;
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%l.1 = load ptr, ptr %p, align 8, !align !0
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call void @foo(ptr %l.1)
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%l.2 = load ptr, ptr %p, align 8, !align !1
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ret ptr %l.2
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}
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define ptr @align_replacement_has_larger_alignment(ptr %p) {
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; CHECK-LABEL: define ptr @align_replacement_has_larger_alignment(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: [[L_1:%.*]] = load ptr, ptr [[P]], align 8, !align [[META1:![0-9]+]]
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; CHECK-NEXT: call void @foo(ptr [[L_1]])
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; CHECK-NEXT: [[L_2:%.*]] = load ptr, ptr [[P]], align 8, !align [[META0]]
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; CHECK-NEXT: ret ptr [[L_2]]
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;
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%l.1 = load ptr, ptr %p, align 8, !align !1
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call void @foo(ptr %l.1)
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%l.2 = load ptr, ptr %p, align 8, !align !0
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ret ptr %l.2
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}
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define ptr @align_1(ptr %p) {
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; CHECK-LABEL: define ptr @align_1(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: [[L_1:%.*]] = load ptr, ptr [[P]], align 8
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; CHECK-NEXT: call void @foo(ptr [[L_1]])
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; CHECK-NEXT: [[L_2:%.*]] = load ptr, ptr [[P]], align 8, !align [[META2:![0-9]+]]
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; CHECK-NEXT: ret ptr [[L_2]]
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;
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%l.1 = load ptr, ptr %p, align 8
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call void @foo(ptr %l.1)
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%l.2 = load ptr, ptr %p, align 8, !align !2
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ret ptr %l.2
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}
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!0 = !{i64 4}
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!1 = !{i64 8}
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!2 = !{i64 1}
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;.
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; CHECK: [[META0]] = !{i64 4}
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; CHECK: [[META1]] = !{i64 8}
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; CHECK: [[META2]] = !{i64 1}
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;.
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