Jeff Law <jeffreya...@gmail.com> writes: > On 10/24/23 04:15, Richard Sandiford wrote: >> An inline asm with multiple output operands is represented as a >> parallel set in which the SET_SRCs are the same (shared) ASM_OPERANDS. >> insn_propgation didn't account for this, and instead propagated >> into each ASM_OPERANDS individually. This meant that it could >> apply a substitution X->Y to Y itself, which (a) could create >> circularity and (b) would be semantically wrong in any case, >> since Y might use a different value of X. >> >> This patch checks explicitly for parallels involving ASM_OPERANDS, >> just like combine does. >> >> Tested on aarch64-linux-gnu & x86_64-linux-gnu. OK to install? >> >> Richard >> >> >> gcc/ >> * recog.cc (insn_propagation::apply_to_pattern_1): Handle shared >> ASM_OPERANDS. > As the combine comment says "Ug".
Aye :) Thanks for the reviews. Richard > OK for the trunk. > > jeff
