| Richard Smith | 469a747 | 2013-05-08 20:32:14 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -Wno-unreachable-code -Werror -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| Eli Friedman | f6c175b | 2009-12-07 20:25:53 +0000 | [diff] [blame] | 2 | |
| 3 | int val = 42; |
| 4 | int& test1() { |
| 5 | return throw val, val; |
| 6 | } |
| 7 | |
| 8 | int test2() { |
| 9 | return val ? throw val : val; |
| 10 | } |
| John McCall | 077dc60 | 2010-10-29 08:14:02 +0000 | [diff] [blame] | 11 | |
| 12 | // rdar://problem/8608801 |
| 13 | void test3() { |
| 14 | throw false; |
| 15 | } |
| Eli Friedman | 27ef75b | 2011-10-15 02:10:40 +0000 | [diff] [blame] | 16 | |
| 17 | // PR10582 |
| 18 | int test4() { |
| 19 | return 1 ? throw val : val; |
| 20 | } |
| Richard Smith | ea85232 | 2013-05-07 21:53:22 +0000 | [diff] [blame] | 21 | |
| 22 | // PR15923 |
| 23 | int test5(bool x, bool y, int z) { |
| 24 | return (x ? throw 1 : y) ? z : throw 2; |
| 25 | } |
| Stephen Lin | 4362261 | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 26 | // CHECK-LABEL: define i32 @_Z5test5bbi( |
| Richard Smith | ea85232 | 2013-05-07 21:53:22 +0000 | [diff] [blame] | 27 | // CHECK: br i1 |
| 28 | // |
| 29 | // x.true: |
| 30 | // CHECK: call void @__cxa_throw( |
| 31 | // CHECK-NEXT: unreachable |
| 32 | // |
| 33 | // x.false: |
| 34 | // CHECK: br i1 |
| 35 | // |
| 36 | // y.true: |
| 37 | // CHECK: load i32* |
| 38 | // CHECK: br label |
| 39 | // |
| 40 | // y.false: |
| 41 | // CHECK: call void @__cxa_throw( |
| 42 | // CHECK-NEXT: unreachable |
| 43 | // |
| 44 | // end: |
| 45 | // CHECK: ret i32 |
| David Majnemer | a9d4f77 | 2013-06-02 08:40:42 +0000 | [diff] [blame] | 46 | |
| 47 | int test6(bool x, bool y, int z) { |
| 48 | return (x ? throw 1 : y) ? z : (throw 2); |
| 49 | } |
| Stephen Lin | 4362261 | 2013-08-15 06:47:53 +0000 | [diff] [blame] | 50 | // CHECK-LABEL: define i32 @_Z5test6bbi( |
| David Majnemer | a9d4f77 | 2013-06-02 08:40:42 +0000 | [diff] [blame] | 51 | // CHECK: br i1 |
| 52 | // |
| 53 | // x.true: |
| 54 | // CHECK: call void @__cxa_throw( |
| 55 | // CHECK-NEXT: unreachable |
| 56 | // |
| 57 | // x.false: |
| 58 | // CHECK: br i1 |
| 59 | // |
| 60 | // y.true: |
| 61 | // CHECK: load i32* |
| 62 | // CHECK: br label |
| 63 | // |
| 64 | // y.false: |
| 65 | // CHECK: call void @__cxa_throw( |
| 66 | // CHECK-NEXT: unreachable |
| 67 | // |
| 68 | // end: |
| 69 | // CHECK: ret i32 |
| Richard Smith | 6a6a4bb | 2014-01-27 04:19:56 +0000 | [diff] [blame] | 70 | |
| 71 | namespace DR1560 { |
| 72 | struct A { |
| 73 | ~A(); |
| 74 | }; |
| 75 | extern bool b; |
| 76 | A get(); |
| 77 | // CHECK-LABEL: @_ZN6DR15601bE |
| 78 | const A &r = b ? get() : throw 0; |
| 79 | // CHECK-NOT: call {{.*}}@_ZN6DR15601AD1Ev |
| 80 | // CHECK: call {{.*}} @__cxa_atexit({{.*}} @_ZN6DR15601AD1Ev {{.*}} @_ZGRN6DR15601rE |
| 81 | // CHECK-NOT: call {{.*}}@_ZN6DR15601AD1Ev |
| 82 | } |
| Richard Smith | f3076ff | 2014-06-20 18:43:47 +0000 | [diff] [blame] | 83 | |
| 84 | // CHECK-LABEL: define void @_Z5test7b( |
| 85 | void test7(bool cond) { |
| 86 | // CHECK: br i1 |
| 87 | // |
| 88 | // x.true: |
| 89 | // CHECK: call void @__cxa_throw( |
| 90 | // CHECK-NEXT: unreachable |
| 91 | // |
| 92 | // x.false: |
| 93 | // CHECK: br label |
| 94 | // |
| 95 | // end: |
| 96 | // CHECK: ret void |
| 97 | cond ? throw test7 : val; |
| 98 | } |
| 99 | |
| Hal Finkel | a2347ba | 2014-07-18 15:52:10 +0000 | [diff] [blame] | 100 | // CHECK-LABEL: define dereferenceable(4) i32* @_Z5test8b( |
| Richard Smith | f3076ff | 2014-06-20 18:43:47 +0000 | [diff] [blame] | 101 | int &test8(bool cond) { |
| 102 | // CHECK: br i1 |
| 103 | // |
| 104 | // x.true: |
| 105 | // CHECK: br label |
| 106 | // |
| 107 | // x.false: |
| 108 | // CHECK: call void @__cxa_throw( |
| 109 | // CHECK-NEXT: unreachable |
| 110 | // |
| 111 | // end: |
| 112 | // CHECK: ret i32* @val |
| 113 | return cond ? val : ((throw "foo")); |
| 114 | } |