diff options
Diffstat (limited to 'lib/Target/ARM/ARMInstrInfo.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index 262695b03c..ca917fa120 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -635,7 +635,10 @@ PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx, i32imm:$size), NoItinerary, "${instid:label} ${cpidx:cpentry}", []>; -let Defs = [SP], Uses = [SP] in { +// FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE +// from removing one half of the matched pairs. That breaks PEI, which assumes +// these will always be in pairs, and asserts if it finds otherwise. Better way? +let Defs = [SP], Uses = [SP], hasSideEffects = 1 in { def ADJCALLSTACKUP : PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary, "@ ADJCALLSTACKUP $amt1", |