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