From cc4779559bea982f9307a8bc1cb017b8eda28d6d Mon Sep 17 00:00:00 2001
From: Richard Sandiford <richard.sandiford@arm.com>
Date: Tue, 24 Oct 2023 11:03:21 +0100
Subject: [PATCH] i386: Fix unprotected REGNO in aeswidekl_operation
I hit an ICE in aeswidekl_operation while testing the late-combine
pass on x86. The predicate tested REGNO without first testing REG_P.
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 ef49efdbde58..e3d55f0c5022 100644
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -2260,6 +2260,7 @@
|| 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;
}
--
GitLab