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5556ec2bac
The fix introduces segfaults and clobbers the value to be stored when the atomic sequence loops. Revert "[Target/MIPS] Kill dead code, no functional change intended." This reverts commit r296153. Revert "Recommit "[mips] Fix atomic compare and swap at O0."" This reverts commit r296134. llvm-svn: 297380
18 lines
660 B
LLVM
18 lines
660 B
LLVM
; RUN: llc -O0 -march=mipsel -mcpu=mips32r2 -target-abi=o32 < %s -filetype=asm -o - \
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; RUN: | FileCheck -check-prefixes=PTR32,ALL %s
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; RUN: llc -O0 -march=mips64el -mcpu=mips64r2 -target-abi=n32 < %s -filetype=asm -o - \
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; RUN: | FileCheck -check-prefixes=PTR32,ALL %s
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; RUN: llc -O0 -march=mips64el -mcpu=mips64r2 -target-abi=n64 < %s -filetype=asm -o - \
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; RUN: | FileCheck -check-prefixes=PTR64,ALL %s
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; PTR32: lw $[[R0:[0-9]+]]
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; PTR64: ld $[[R0:[0-9]+]]
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; ALL: ll ${{[0-9]+}}, 0($[[R0]])
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define {i16, i1} @foo(i16* %addr, i16 signext %r, i16 zeroext %new) {
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%res = cmpxchg i16* %addr, i16 %r, i16 %new seq_cst seq_cst
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ret {i16, i1} %res
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}
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