33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 2
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -S -emit-llvm %s -o - | FileCheck %s
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// Test for PR62830 where there are 2 infinite cycles using goto. Make sure
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// clang codegen doesn't hang.
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int a;
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// CHECK-LABEL: define dso_local i32 @main
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// CHECK-SAME: () #[[ATTR0:[0-9]+]] {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 0, ptr [[RETVAL]], align 4
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// CHECK-NEXT: br label [[L1:%.*]]
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// CHECK: L1:
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// CHECK-NEXT: br label [[L1]]
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// CHECK: L2:
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @a, align 4
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// CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[TMP0]], 0
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// CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
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// CHECK: if.then:
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// CHECK-NEXT: br label [[L2:%.*]]
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// CHECK: if.end:
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// CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[RETVAL]], align 4
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// CHECK-NEXT: ret i32 [[TMP1]]
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//
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int main() {
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L1:
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goto L1;
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L2:
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if (!a)
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goto L2;
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}
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