54 lines
1.0 KiB
C++
54 lines
1.0 KiB
C++
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// RUN: %clang_analyze_cc1 -triple i386-pc-linux-gnu -analyzer-checker=debug.DumpCFG %s 2>&1 | FileCheck %s
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// RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=debug.DumpCFG %s 2>&1 | FileCheck %s
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int foo(int cond)
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{
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label_true:
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asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::label_true, loop);
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return 0;
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loop:
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return 0;
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}
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// CHECK-LABEL: loop
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// CHECK-NEXT: 0
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// CHECK-NEXT: return
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// CHECK-NEXT: Preds (1): B3
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// CHECK-NEXT: Succs (1): B0
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// CHECK-LABEL: label_true
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// CHECK-NEXT: asm goto
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// CHECK-NEXT: Preds (2): B3 B4
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// CHECK-NEXT: Succs (3): B2 B3 B1
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int bar(int cond)
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{
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asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::L1, L2);
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return 0;
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L1:
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L2:
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return 0;
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}
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// CHECK: [B4]
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// CHECK-NEXT: asm goto
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// CHECK-NEXT: Preds (1): B5
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// CHECK-NEXT: Succs (3): B3 B2 B1
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int zoo(int n)
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{
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A5:
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A1:
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asm goto("testl %0, %0; jne %l1;" :: "r"(n)::A1, A2, A3, A4, A5);
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A2:
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A3:
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A4:
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return 0;
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}
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// CHECK-LABEL: A1
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// CHECK-NEXT: asm goto
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// CHECK-NEXT: Preds (2): B5 B4
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// CHECK-NEXT: Succs (5): B3 B4 B2 B1 B5
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