PR/57646 CVS commit: src/external/gpl3/gcc.old/dist/gcc

["Rin Okuyama" <rin%netbsd.org@localhost>]

The following reply was made to PR port-vax/57646; it has been noted by GNATS.

From: "Rin Okuyama" <rin%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/57646 CVS commit: src/external/gpl3/gcc.old/dist/gcc
Date: Sat, 7 Oct 2023 12:05:36 +0000

 Module Name:	src
 Committed By:	rin
 Date:		Sat Oct  7 12:05:36 UTC 2023
 
 Modified Files:
 	src/external/gpl3/gcc.old/dist/gcc: rtlanal.c target.def targhooks.c
 	    targhooks.h
 	src/external/gpl3/gcc.old/dist/gcc/config/vax: vax.c
 	src/external/gpl3/gcc.old/dist/gcc/doc: tm.texi tm.texi.in
 
 Log Message:
 gcc.old: PR port-vax/57646 patch provided by Kalvis Duckmanton [13/21]
 
 Bitfield instructions will generate a reserved operand fault if the
 operands are not reasonable (size > 32, position > 31 and size not
 zero and field in a register). GCC generates code to test for these
 conditions but in certain circumstances, the optimiser may decide
 that a bitfield extraction instruction is invariant and move it
 ahead of the instructions testing its arguments.
 
 Introduce a new target hook to indicate to GCC that a bitfield
 instruction may trap and update may_trap_p_1()
 
 XXXRO: Although this patch includes diffs outside gcc/config/vax,
 NFC for !TARGET_BITFIELD_MAY_TRAP_P, i.e., other than vax.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.13 -r1.14 src/external/gpl3/gcc.old/dist/gcc/rtlanal.c
 cvs rdiff -u -r1.9 -r1.10 src/external/gpl3/gcc.old/dist/gcc/target.def
 cvs rdiff -u -r1.11 -r1.12 src/external/gpl3/gcc.old/dist/gcc/targhooks.c \
     src/external/gpl3/gcc.old/dist/gcc/targhooks.h
 cvs rdiff -u -r1.16 -r1.17 \
     src/external/gpl3/gcc.old/dist/gcc/config/vax/vax.c
 cvs rdiff -u -r1.11 -r1.12 src/external/gpl3/gcc.old/dist/gcc/doc/tm.texi
 cvs rdiff -u -r1.9 -r1.10 src/external/gpl3/gcc.old/dist/gcc/doc/tm.texi.in
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.