derek.holloway
7502bf64a4
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70 lines
2.7 KiB
LLVM
70 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
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; RUN: opt -passes=newgvn %s -S | FileCheck %s
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declare void @use(i32)
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; Make sure !tbaa metadata is preserved when only ssa_copy calls introduced by
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; PredicateInfo are replaced.
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define i32 @test(ptr %p1, ptr %p2, i1 %c) {
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; CHECK-LABEL: define i32 @test(
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; CHECK-SAME: ptr [[P1:%.*]], ptr [[P2:%.*]], i1 [[C:%.*]]) {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[LV:%.*]] = load i32, ptr [[P1]], align 8, !tbaa [[INT_TBAA0:![0-9]+]]
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; CHECK-NEXT: [[CMP_1:%.*]] = icmp slt i32 [[LV]], 1
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; CHECK-NEXT: br i1 [[CMP_1]], label %[[EXIT:.*]], label %[[IF_FALSE:.*]]
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; CHECK: [[IF_FALSE]]:
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; CHECK-NEXT: br i1 [[C]], label %[[EXIT]], label %[[FOR_CHECK:.*]]
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; CHECK: [[FOR_CHECK]]:
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; CHECK-NEXT: [[CMP_2:%.*]] = icmp sgt i32 [[LV]], 0
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; CHECK-NEXT: br i1 [[CMP_2]], label %[[FOR_PH:.*]], label %[[EXIT]]
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; CHECK: [[FOR_PH]]:
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; CHECK-NEXT: br label %[[FOR_BODY:.*]]
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; CHECK: [[FOR_BODY]]:
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; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, %[[FOR_PH]] ], [ [[IV_NEXT:%.*]], %[[FOR_BODY]] ]
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; CHECK-NEXT: call void @use(i32 [[IV]])
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; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i32 [[IV]], 1
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; CHECK-NEXT: [[CMP_3:%.*]] = icmp ne i32 [[IV_NEXT]], [[LV]]
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; CHECK-NEXT: br i1 [[CMP_3]], label %[[FOR_BODY]], label %[[EXIT]]
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; CHECK: [[EXIT]]:
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; CHECK-NEXT: ret i32 [[LV]]
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;
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entry:
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%lv = load i32, ptr %p1, align 8, !tbaa !0
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%cmp.1 = icmp slt i32 %lv, 1
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br i1 %cmp.1, label %exit, label %if.false
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if.false: ; preds = %entry
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br i1 %c, label %exit, label %for.check
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for.check: ; preds = %if.false
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%cmp.2 = icmp sgt i32 %lv, 0
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br i1 %cmp.2, label %for.ph, label %exit
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for.ph: ; preds = %for.check
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br label %for.body
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for.body: ; preds = %for.body, %for.ph
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%iv = phi i32 [ 0, %for.ph ], [ %iv.next, %for.body ]
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call void @use(i32 %iv)
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%iv.next = add nuw nsw i32 %iv, 1
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%cmp.3 = icmp ne i32 %iv.next, %lv
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br i1 %cmp.3, label %for.body, label %exit
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exit: ; preds = %for.body, %for.check, %if.false, %entry
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ret i32 %lv
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}
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!0 = !{!1, !2, i64 0}
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!1 = !{!"FULL", !2, i64 0, !2, i64 4, !3, i64 8}
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!2 = !{!"int", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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;.
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; CHECK: [[INT_TBAA0]] = !{[[META1:![0-9]+]], [[META2:![0-9]+]], i64 0}
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; CHECK: [[META1]] = !{!"FULL", [[META2]], i64 0, [[META2]], i64 4, [[META3:![0-9]+]], i64 8}
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; CHECK: [[META2]] = !{!"int", [[META3]], i64 0}
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; CHECK: [[META3]] = !{!"omnipotent char", [[META4:![0-9]+]], i64 0}
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; CHECK: [[META4]] = !{!"Simple C/C++ TBAA"}
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;.
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