| Jennifer Yu | b8fee67 | 2019-06-03 15:57:25 +0000 | [diff] [blame] | 1 | // RUN: %clang_analyze_cc1 -triple i386-pc-linux-gnu -analyzer-checker=debug.DumpCFG %s 2>&1 | FileCheck %s |
| 2 | // RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=debug.DumpCFG %s 2>&1 | FileCheck %s |
| 3 | |
| 4 | int foo(int cond) |
| 5 | { |
| 6 | label_true: |
| 7 | asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::label_true, loop); |
| 8 | return 0; |
| 9 | loop: |
| 10 | return 0; |
| 11 | } |
| 12 | |
| 13 | // CHECK-LABEL: loop |
| 14 | // CHECK-NEXT: 0 |
| 15 | // CHECK-NEXT: return |
| 16 | // CHECK-NEXT: Preds (1): B3 |
| 17 | // CHECK-NEXT: Succs (1): B0 |
| 18 | |
| 19 | // CHECK-LABEL: label_true |
| 20 | // CHECK-NEXT: asm goto |
| 21 | // CHECK-NEXT: Preds (2): B3 B4 |
| 22 | // CHECK-NEXT: Succs (3): B2 B3 B1 |
| 23 | |
| 24 | |
| 25 | int bar(int cond) |
| 26 | { |
| 27 | asm goto("testl %0, %0; jne %l1;" :: "r"(cond)::L1, L2); |
| 28 | return 0; |
| 29 | L1: |
| 30 | L2: |
| 31 | return 0; |
| 32 | } |
| 33 | |
| 34 | // CHECK: [B4] |
| 35 | // CHECK-NEXT: asm goto |
| 36 | // CHECK-NEXT: Preds (1): B5 |
| 37 | // CHECK-NEXT: Succs (3): B3 B2 B1 |
| 38 | |
| 39 | int zoo(int n) |
| 40 | { |
| 41 | A5: |
| 42 | A1: |
| 43 | asm goto("testl %0, %0; jne %l1;" :: "r"(n)::A1, A2, A3, A4, A5); |
| 44 | A2: |
| 45 | A3: |
| 46 | A4: |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | // CHECK-LABEL: A1 |
| 51 | // CHECK-NEXT: asm goto |
| 52 | // CHECK-NEXT: Preds (2): B5 B4 |
| 53 | // CHECK-NEXT: Succs (5): B3 B4 B2 B1 B5 |