I hit an ICE in aeswidekl_operation while testing the late-combine pass on x86. The predicate tested REGNO without first testing REG_P.
Tested on x86_64-linux-gnu & pushed as obvious. Richard gcc/ * config/i386/predicates.md (aeswidekl_operation): Protect REGNO check with REG_P. --- gcc/config/i386/predicates.md | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md index ef49efdbde5..e3d55f0c502 100644 --- a/gcc/config/i386/predicates.md +++ b/gcc/config/i386/predicates.md @@ -2260,6 +2260,7 @@ (define_predicate "aeswidekl_operation" || GET_CODE (SET_SRC (elt)) != UNSPEC_VOLATILE || GET_MODE (SET_SRC (elt)) != V2DImode || XVECLEN (SET_SRC (elt), 0) != 1 + || !REG_P (XVECEXP (SET_SRC (elt), 0, 0)) || REGNO (XVECEXP (SET_SRC (elt), 0, 0)) != GET_SSE_REGNO (i)) return false; } -- 2.25.1