diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/SIInstrFormats.td')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIInstrFormats.td | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIInstrFormats.td b/llvm/lib/Target/AMDGPU/SIInstrFormats.td index af9908b9846..9e7aea6705f 100644 --- a/llvm/lib/Target/AMDGPU/SIInstrFormats.td +++ b/llvm/lib/Target/AMDGPU/SIInstrFormats.td @@ -203,6 +203,8 @@ class VPseudoInstSI<dag outs, dag ins, list<dag> pattern = [], string asm = ""> : PseudoInstSI<outs, ins, pattern, asm> { let VALU = 1; let Uses = [EXEC]; + // Avoid changing source registers in a way that violates constant bus read limitations. + let hasExtraSrcRegAllocReq = 1; } class CFPseudoInstSI<dag outs, dag ins, list<dag> pattern = [], |
