From: Robin Dapp Date: Tue, 18 Oct 2022 10:27:37 +0000 (+0200) Subject: s390: Fix bootstrap error with checking and -m31. X-Git-Tag: basepoints/gcc-14~3832 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95c5cffb712d90bfe36f2cf71d3a052b8068db34;p=thirdparty%2Fgcc.git s390: Fix bootstrap error with checking and -m31. For a while already we hit an ICE when bootstrapping with -m31 and --enable-checking=all. ../../../../libgfortran/ieee/ieee_helper.c: In function 'ieee_class_helper_16': ../../../../libgfortran/ieee/ieee_helper.c:77:3: internal compiler error: RTL check: expected code 'reg', have 'subreg' in rhs_regno, at rtl.h:1932 77 | } | ^ ../../../../libgfortran/ieee/ieee_helper.c:87:1: note: in expansion of macro 'CLASSMACRO' 87 | CLASSMACRO(16) | ^~~~~~~~~~ This patch fixes the problem by first checking for reload_completed and also ensuring that REGNO is only called on reg operands rather than subregs. gcc/ChangeLog: * config/s390/s390.md: Move reload_completed and check operands for REG_P. --- diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md index 962927c31126..c89b15cf4f3c 100644 --- a/gcc/config/s390/s390.md +++ b/gcc/config/s390/s390.md @@ -8797,9 +8797,10 @@ (neg:DI (match_operand:DI 1 "register_operand" ""))) (clobber (reg:CC CC_REGNUM))] "!TARGET_ZARCH - && (REGNO (operands[0]) == REGNO (operands[1]) - || s390_split_ok_p (operands[0], operands[1], DImode, 0)) - && reload_completed" + && reload_completed + && ((REG_P (operands[0]) && REG_P (operands[1]) + && REGNO (operands[0]) == REGNO (operands[1])) + || s390_split_ok_p (operands[0], operands[1], DImode, 0))" [(parallel [(set (match_dup 2) (neg:SI (match_dup 3))) (clobber (reg:CC CC_REGNUM))])