| JF Bastien | 14daa20 | 2018-12-18 05:12:21 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fblocks %s -emit-llvm -o - | FileCheck %s -check-prefix=UNINIT |
| 2 | // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fblocks -ftrivial-auto-var-init=pattern %s -emit-llvm -o - | FileCheck %s -check-prefix=PATTERN |
| 3 | // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fblocks -ftrivial-auto-var-init=zero %s -emit-llvm -o - | FileCheck %s -check-prefix=ZERO |
| 4 | |
| 5 | template<typename T> void used(T &) noexcept; |
| 6 | |
| 7 | extern "C" { |
| 8 | |
| 9 | // UNINIT-LABEL: test_attribute_uninitialized( |
| 10 | // UNINIT: alloca |
| 11 | // UNINIT-NEXT: call void |
| 12 | // ZERO-LABEL: test_attribute_uninitialized( |
| 13 | // ZERO: alloca |
| 14 | // ZERO-NEXT: call void |
| 15 | // PATTERN-LABEL: test_attribute_uninitialized( |
| 16 | // PATTERN: alloca |
| 17 | // PATTERN-NEXT: call void |
| 18 | void test_attribute_uninitialized() { |
| 19 | [[clang::uninitialized]] int i; |
| 20 | used(i); |
| 21 | } |
| 22 | |
| 23 | } // extern "C" |