a9d4f77eb9
clang would incorrectly not allow the following: int x = true ? (throw 1) : 2; The problem exists because we don't see beyond the parens. This, in turn, causes us to believe that we are choosing between void and int which we diagnose as an error. Instead, allow clang to see the 'throw' inside the parens. llvm-svn: 183085
70 lines
1.1 KiB
C++
70 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -Wno-unreachable-code -Werror -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s
|
|
|
|
int val = 42;
|
|
int& test1() {
|
|
return throw val, val;
|
|
}
|
|
|
|
int test2() {
|
|
return val ? throw val : val;
|
|
}
|
|
|
|
// rdar://problem/8608801
|
|
void test3() {
|
|
throw false;
|
|
}
|
|
|
|
// PR10582
|
|
int test4() {
|
|
return 1 ? throw val : val;
|
|
}
|
|
|
|
// PR15923
|
|
int test5(bool x, bool y, int z) {
|
|
return (x ? throw 1 : y) ? z : throw 2;
|
|
}
|
|
// CHECK: define i32 @_Z5test5bbi(
|
|
// CHECK: br i1
|
|
//
|
|
// x.true:
|
|
// CHECK: call void @__cxa_throw(
|
|
// CHECK-NEXT: unreachable
|
|
//
|
|
// x.false:
|
|
// CHECK: br i1
|
|
//
|
|
// y.true:
|
|
// CHECK: load i32*
|
|
// CHECK: br label
|
|
//
|
|
// y.false:
|
|
// CHECK: call void @__cxa_throw(
|
|
// CHECK-NEXT: unreachable
|
|
//
|
|
// end:
|
|
// CHECK: ret i32
|
|
|
|
int test6(bool x, bool y, int z) {
|
|
return (x ? throw 1 : y) ? z : (throw 2);
|
|
}
|
|
// CHECK: define i32 @_Z5test6bbi(
|
|
// CHECK: br i1
|
|
//
|
|
// x.true:
|
|
// CHECK: call void @__cxa_throw(
|
|
// CHECK-NEXT: unreachable
|
|
//
|
|
// x.false:
|
|
// CHECK: br i1
|
|
//
|
|
// y.true:
|
|
// CHECK: load i32*
|
|
// CHECK: br label
|
|
//
|
|
// y.false:
|
|
// CHECK: call void @__cxa_throw(
|
|
// CHECK-NEXT: unreachable
|
|
//
|
|
// end:
|
|
// CHECK: ret i32
|