| Dan Gohman | fce288f | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=ppc32 | grep lwarx | count 3 |
| 2 | ; RUN: llc < %s -march=ppc32 | grep stwcx. | count 4 |
| Evan Cheng | 8608f2e | 2008-04-19 02:30:38 +0000 | [diff] [blame] | 3 | |
| 4 | define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind { |
| Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 5 | %tmp = call i32 @llvm.atomic.load.add.i32( i32* %mem, i32 %val ) |
| Evan Cheng | 8608f2e | 2008-04-19 02:30:38 +0000 | [diff] [blame] | 6 | ret i32 %tmp |
| 7 | } |
| 8 | |
| 9 | define i32 @exchange_and_cmp(i32* %mem) nounwind { |
| Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 10 | %tmp = call i32 @llvm.atomic.cmp.swap.i32( i32* %mem, i32 0, i32 1 ) |
| Evan Cheng | 8608f2e | 2008-04-19 02:30:38 +0000 | [diff] [blame] | 11 | ret i32 %tmp |
| 12 | } |
| 13 | |
| Evan Cheng | 8608f2e | 2008-04-19 02:30:38 +0000 | [diff] [blame] | 14 | define i32 @exchange(i32* %mem, i32 %val) nounwind { |
| 15 | %tmp = call i32 @llvm.atomic.swap.i32( i32* %mem, i32 1 ) |
| 16 | ret i32 %tmp |
| 17 | } |
| 18 | |
| Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 19 | declare i32 @llvm.atomic.load.add.i32(i32*, i32) nounwind |
| 20 | declare i32 @llvm.atomic.cmp.swap.i32(i32*, i32, i32) nounwind |
| Evan Cheng | 8608f2e | 2008-04-19 02:30:38 +0000 | [diff] [blame] | 21 | declare i32 @llvm.atomic.swap.i32(i32*, i32) nounwind |