| Jozef Kolek | 2f27d57 | 2014-12-18 16:39:29 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=mipsel -filetype=obj --disable-machine-licm -mattr=micromips < %s -o - \ |
| 2 | ; RUN: | llvm-objdump -no-show-raw-insn -arch mipsel -mcpu=mips32r2 -mattr=micromips -d - \ |
| 3 | ; RUN: | FileCheck %s -check-prefix=MICROMIPS |
| 4 | |
| 5 | ; Use llvm-objdump to check wheter the encodings of microMIPS atomic instructions are correct. |
| 6 | ; While emitting assembly files directly when in microMIPS mode, it is possible to emit a mips32r2 |
| 7 | ; instruction instead of microMIPS instruction, and since many mips32r2 and microMIPS |
| 8 | ; instructions have identical assembly formats, invalid instruction cannot be detected. |
| 9 | |
| 10 | @y = common global i8 0, align 1 |
| 11 | |
| 12 | define signext i8 @AtomicLoadAdd8(i8 signext %incr) nounwind { |
| 13 | entry: |
| 14 | %0 = atomicrmw add i8* @y, i8 %incr monotonic |
| 15 | ret i8 %0 |
| 16 | |
| 17 | ; MICROMIPS: ll ${{[0-9]+}}, 0(${{[0-9]+}}) |
| 18 | ; MICROMIPS: sc ${{[0-9]+}}, 0(${{[0-9]+}}) |
| 19 | } |
| 20 | |
| 21 | define signext i8 @AtomicCmpSwap8(i8 signext %oldval, i8 signext %newval) nounwind { |
| 22 | entry: |
| 23 | %pair0 = cmpxchg i8* @y, i8 %oldval, i8 %newval monotonic monotonic |
| 24 | %0 = extractvalue { i8, i1 } %pair0, 0 |
| 25 | ret i8 %0 |
| 26 | |
| 27 | ; MICROMIPS: ll ${{[0-9]+}}, 0(${{[0-9]+}}) |
| 28 | ; MICROMIPS: sc ${{[0-9]+}}, 0(${{[0-9]+}}) |
| 29 | } |