forked from OSchip/llvm-project
71 lines
1.4 KiB
C++
71 lines
1.4 KiB
C++
// RUN: %clang_analyze_cc1 -triple i386-pc-linux-gnu -analyzer-checker=debug.DumpCFG %s 2>&1 | FileCheck %s
|
|
// RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=debug.DumpCFG %s 2>&1 | FileCheck %s
|
|
|
|
int foo(int cond)
|
|
{
|
|
label_true:
|
|
asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::label_true, loop);
|
|
return 0;
|
|
loop:
|
|
return 0;
|
|
}
|
|
|
|
// CHECK-LABEL: loop
|
|
// CHECK-NEXT: 0
|
|
// CHECK-NEXT: return
|
|
// CHECK-NEXT: Preds (1): B3
|
|
// CHECK-NEXT: Succs (1): B0
|
|
|
|
// CHECK-LABEL: label_true
|
|
// CHECK-NEXT: cond
|
|
// CHECK-NEXT: [B3.1]
|
|
// CHECK-NEXT: T: asm goto
|
|
// CHECK-NEXT: Preds (2): B3 B4
|
|
// CHECK-NEXT: Succs (3): B2 B3 B1
|
|
|
|
int bar(int cond)
|
|
{
|
|
asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::L1, L2);
|
|
return 0;
|
|
L1:
|
|
L2:
|
|
return 0;
|
|
}
|
|
|
|
// CHECK: [B4]
|
|
// CHECK-NEXT: cond
|
|
// CHECK-NEXT: [B4.1]
|
|
// CHECK-NEXT: T: asm goto
|
|
// CHECK-NEXT: Preds (1): B5
|
|
// CHECK-NEXT: Succs (3): B3 B2 B1
|
|
|
|
int zoo(int n)
|
|
{
|
|
A5:
|
|
A1:
|
|
asm goto("testl %0, %0; jne %l1;" :: "r"(n)::A1, A2, A3, A4, A5);
|
|
A2:
|
|
A3:
|
|
A4:
|
|
return 0;
|
|
}
|
|
|
|
// CHECK-LABEL: A1
|
|
// CHECK-NEXT: n
|
|
// CHECK-NEXT: [B4.1]
|
|
// CHECK-NEXT: T: asm goto
|
|
// CHECK-NEXT: Preds (2): B5 B4
|
|
// CHECK-NEXT: Succs (5): B3 B4 B2 B1 B5
|
|
|
|
void baz(void)
|
|
{
|
|
asm goto("" :: "r"(1 ? 2 : 0 << -1) :: error);
|
|
error:;
|
|
}
|
|
|
|
// CHECK: [B2]
|
|
// CHECK-NEXT: 1: [B5.2] ? [B3.1] : [B4.4]
|
|
// CHECK-NEXT: T: asm goto ("" : : "r" ([B2.1]) : : error);
|
|
// CHECK-NEXT: Preds (2): B3 B4
|
|
// CHECK-NEXT: Succs (1): B1
|