59 lines
1.9 KiB
LLVM
59 lines
1.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
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; RUN: opt -S -passes=jump-threading < %s | FileCheck %s
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declare void @set_value(ptr)
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declare void @bar()
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define void @foo(i1 %0) {
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; CHECK-LABEL: define void @foo(
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; CHECK-SAME: i1 [[TMP0:%.*]]) {
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; CHECK-NEXT: start:
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; CHECK-NEXT: [[V:%.*]] = alloca i64, align 8
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; CHECK-NEXT: call void @set_value(ptr [[V]])
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; CHECK-NEXT: [[L1:%.*]] = load i64, ptr [[V]], align 8
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; CHECK-NEXT: br i1 [[TMP0]], label [[BB0:%.*]], label [[BB2:%.*]]
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; CHECK: bb0:
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; CHECK-NEXT: [[C1:%.*]] = icmp eq i64 [[L1]], 0
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; CHECK-NEXT: br i1 [[C1]], label [[BB2_THREAD:%.*]], label [[BB2]]
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; CHECK: bb2.thread:
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; CHECK-NEXT: store i64 0, ptr [[V]], align 8
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; CHECK-NEXT: br label [[BB4:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: [[L2:%.*]] = phi i64 [ [[L1]], [[BB0]] ], [ [[L1]], [[START:%.*]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[L2]], 2
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; CHECK-NEXT: br i1 [[TMP1]], label [[BB3:%.*]], label [[BB4]]
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; CHECK: bb3:
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; CHECK-NEXT: call void @bar()
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; CHECK-NEXT: ret void
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; CHECK: bb4:
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; CHECK-NEXT: ret void
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;
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start:
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%v = alloca i64, align 8
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call void @set_value(ptr %v)
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%l1 = load i64, ptr %v, align 8, !range !0
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br i1 %0, label %bb0, label %bb2
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bb0: ; preds = %start
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%c1 = icmp eq i64 %l1, 0
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br i1 %c1, label %bb1, label %bb2
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bb1: ; preds = %bb0
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store i64 0, ptr %v, align 8
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br label %bb2
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bb2: ; preds = %bb1, %bb0, %start
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%l2 = load i64, ptr %v, align 8
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%1 = icmp eq i64 %l2, 2
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br i1 %1, label %bb3, label %bb4
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bb3: ; preds = %bb2
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call void @bar()
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ret void
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bb4: ; preds = %bb2
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ret void
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}
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!0 = !{i64 0, i64 2}
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