diff options
Diffstat (limited to 'llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp')
-rw-r--r-- | llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp index ac5e7f3..1493bf4 100644 --- a/llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp +++ b/llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp @@ -158,7 +158,12 @@ void LoongArchFrameLowering::processFunctionBeforeFrameFinalized( // estimateStackSize has been observed to under-estimate the final stack // size, so give ourselves wiggle-room by checking for stack size // representable an 11-bit signed field rather than 12-bits. - if (!isInt<11>(MFI.estimateStackSize(MF))) + // For [x]vstelm.{b/h/w/d} memory instructions with 8 imm offset, 7-bit + // signed field is fine. + unsigned EstimateStackSize = MFI.estimateStackSize(MF); + if (!isInt<11>(EstimateStackSize) || + (MF.getSubtarget<LoongArchSubtarget>().hasExtLSX() && + !isInt<7>(EstimateStackSize))) ScavSlotsNum = std::max(ScavSlotsNum, 1u); // For CFR spill. |