| David Chisnall | fa35df6 | 2012-01-16 17:27:18 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s |
| Daniel Sanders | 933f0a0 | 2015-02-18 15:08:37 +0000 | [diff] [blame] | 2 | // RUN: %clang_cc1 -triple mips-linux-gnu -emit-llvm %s -o - | FileCheck %s |
| David Chisnall | fa35df6 | 2012-01-16 17:27:18 +0000 | [diff] [blame] | 3 | |
| Eli Friedman | 93ee5ca | 2012-06-16 02:19:17 +0000 | [diff] [blame] | 4 | void foo(int x) |
| David Chisnall | fa35df6 | 2012-01-16 17:27:18 +0000 | [diff] [blame] | 5 | { |
| 6 | _Atomic(int) i = 0; |
| Eli Friedman | 93ee5ca | 2012-06-16 02:19:17 +0000 | [diff] [blame] | 7 | _Atomic(short) j = 0; |
| David Chisnall | fa35df6 | 2012-01-16 17:27:18 +0000 | [diff] [blame] | 8 | // Check that multiply / divides on atomics produce a cmpxchg loop |
| Eli Friedman | 93ee5ca | 2012-06-16 02:19:17 +0000 | [diff] [blame] | 9 | i *= 2; |
| 10 | // CHECK: mul nsw i32 |
| Alexey Bataev | a47ae90 | 2014-12-15 06:12:42 +0000 | [diff] [blame] | 11 | // CHECK: {{(cmpxchg i32*|i1 @__atomic_compare_exchange\(i32 4,)}} |
| Eli Friedman | 93ee5ca | 2012-06-16 02:19:17 +0000 | [diff] [blame] | 12 | i /= 2; |
| 13 | // CHECK: sdiv i32 |
| Alexey Bataev | a47ae90 | 2014-12-15 06:12:42 +0000 | [diff] [blame] | 14 | // CHECK: {{(cmpxchg i32*|i1 @__atomic_compare_exchange\(i32 4, )}} |
| Eli Friedman | 93ee5ca | 2012-06-16 02:19:17 +0000 | [diff] [blame] | 15 | j /= x; |
| 16 | // CHECK: sdiv i32 |
| Alexey Bataev | a47ae90 | 2014-12-15 06:12:42 +0000 | [diff] [blame] | 17 | // CHECK: {{(cmpxchg i16*|i1 @__atomic_compare_exchange\(i32 2, )}} |
| Eli Friedman | 93ee5ca | 2012-06-16 02:19:17 +0000 | [diff] [blame] | 18 | |
| David Chisnall | fa35df6 | 2012-01-16 17:27:18 +0000 | [diff] [blame] | 19 | } |
| David Majnemer | 6866a3c | 2015-02-14 01:35:07 +0000 | [diff] [blame] | 20 | |
| 21 | extern _Atomic _Bool b; |
| 22 | |
| 23 | _Bool bar() { |
| 24 | // CHECK-LABEL: @bar |
| David Blaikie | a953f28 | 2015-02-27 21:19:58 +0000 | [diff] [blame^] | 25 | // CHECK: %[[load:.*]] = load atomic i8, i8* @b seq_cst |
| David Majnemer | 6866a3c | 2015-02-14 01:35:07 +0000 | [diff] [blame] | 26 | // CHECK: %[[tobool:.*]] = trunc i8 %[[load]] to i1 |
| 27 | // CHECK: ret i1 %[[tobool]] |
| 28 | return b; |
| 29 | } |
| David Majnemer | ce27e42 | 2015-02-14 01:48:17 +0000 | [diff] [blame] | 30 | |
| 31 | extern _Atomic(_Complex int) x; |
| 32 | |
| 33 | void baz(int y) { |
| 34 | // CHECK-LABEL: @baz |
| Daniel Sanders | 933f0a0 | 2015-02-18 15:08:37 +0000 | [diff] [blame] | 35 | // CHECK: {{store atomic|call void @__atomic_store}} |
| David Majnemer | ce27e42 | 2015-02-14 01:48:17 +0000 | [diff] [blame] | 36 | x += y; |
| 37 | } |