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Alexandre Oliva 15404016d9 hardcfr: support checking at abnormal edges [PR111943] 
Control flow redundancy may choose abnormal edges for early checking,
but that breaks because we can't insert checks on such edges.

Introduce conditional checking on the dest block of abnormal edges,
and leave it for the optimizer to drop the conditional.


for  gcc/ChangeLog

	PR tree-optimization/111943
	* gimple-harden-control-flow.cc: Adjust copyright year.
	(rt_bb_visited): Add vfalse and vtrue data members.
	Zero-initialize them in the ctor.
	(rt_bb_visited::insert_exit_check_on_edge): Upon encountering
	abnormal edges, insert initializers for vfalse and vtrue on
	entry, and insert the check sequence guarded by a conditional
	in the dest block.

for  libgcc/ChangeLog

	* hardcfr.c: Adjust copyright year.

for  gcc/testsuite/ChangeLog

	PR tree-optimization/111943
	* gcc.dg/harden-cfr-pr111943.c: New.
2023-10-31 09:32:08 -03:00
..
config libgcc: make heap-based trampolines conditional on libc presence 2023-10-24 08:35:44 +01:00
soft-fp libgcc _BitInt helper documentation [PR102989] 2023-09-06 17:42:37 +02:00
ChangeLog Daily bump. 2023-10-25 00:19:04 +00:00
config.host Config,Darwin: Allow for configuring Darwin to use embedded runpath. 2023-10-22 19:30:02 +01:00
config.in gcov: use mmap pools for KVP. 2021-03-03 14:21:45 +01:00
configure Deprecate a.out support for NetBSD targets. 2023-08-07 22:59:41 +02:00
configure.ac LoongArch Port: libgcc 2022-03-29 17:43:35 +08:00
crtstuff.c Update copyright years. 2023-01-16 11:52:17 +01:00
dfp-bit.c Update copyright years. 2023-01-16 11:52:17 +01:00
dfp-bit.h Update copyright years. 2023-01-16 11:52:17 +01:00
divmod.c Update copyright years. 2023-01-16 11:52:17 +01:00
emutls.c Update copyright years. 2023-01-16 11:52:17 +01:00
enable-execute-stack-empty.c
enable-execute-stack-mprotect.c Update copyright years. 2023-01-16 11:52:17 +01:00
find-symver.awk Update copyright years. 2023-01-16 11:52:17 +01:00
fixed-bit.c Update copyright years. 2023-01-16 11:52:17 +01:00
fixed-bit.h Update copyright years. 2023-01-16 11:52:17 +01:00
fixed-obj.mk
floatunsidf.c
floatunsisf.c
floatunsitf.c
floatunsixf.c
fp-bit.c Update copyright years. 2023-01-16 11:52:17 +01:00
fp-bit.h Update copyright years. 2023-01-16 11:52:17 +01:00
gbl-ctors.h Update copyright years. 2023-01-16 11:52:17 +01:00
gcov.h Update copyright years. 2023-01-16 11:52:17 +01:00
gen-fixed.sh
generic-morestack-thread.c Update copyright years. 2023-01-16 11:52:17 +01:00
generic-morestack.c Update copyright years. 2023-01-16 11:52:17 +01:00
generic-morestack.h Update copyright years. 2023-01-16 11:52:17 +01:00
gstdint.h
gthr-posix.h Update copyright years. 2023-01-16 11:52:17 +01:00
gthr-single.h Update copyright years. 2023-01-16 11:52:17 +01:00
gthr.h Update copyright years. 2023-01-16 11:52:17 +01:00
hardcfr.c hardcfr: support checking at abnormal edges [PR111943] 2023-10-31 09:32:08 -03:00
libgcc-std.ver.in libgcc: support heap-based trampolines 2023-10-22 14:01:47 +01:00
libgcc2.c libgcc _BitInt helper documentation [PR102989] 2023-09-06 17:42:37 +02:00
libgcc2.h libgcc: support heap-based trampolines 2023-10-22 14:01:47 +01:00
libgcov-driver-system.c Update copyright years. 2023-01-16 11:52:17 +01:00
libgcov-driver.c Update copyright years. 2023-01-16 11:52:17 +01:00
libgcov-interface.c Update copyright years. 2023-01-16 11:52:17 +01:00
libgcov-merge.c Update copyright years. 2023-01-16 11:52:17 +01:00
libgcov-profiler.c Update copyright years. 2023-01-16 11:52:17 +01:00
libgcov-util.c Update copyright years. 2023-01-16 11:52:17 +01:00
libgcov.h Update copyright years. 2023-01-16 11:52:17 +01:00
Makefile.in Control flow redundancy hardening 2023-10-20 07:50:33 -03:00
memcmp.c
memcpy.c
memmove.c
memset.c
mkheader.sh Update copyright years. 2023-01-16 11:52:17 +01:00
mkmap-flat.awk Update copyright years. 2023-01-16 11:52:17 +01:00
mkmap-symver.awk Update copyright years. 2023-01-16 11:52:17 +01:00
offloadstuff.c Update copyright years. 2023-01-16 11:52:17 +01:00
shared-object.mk
siditi-object.mk
static-object.mk
sync.c Update copyright years. 2023-01-16 11:52:17 +01:00
udivhi3.c Update copyright years. 2023-01-16 11:52:17 +01:00
udivmod.c Update copyright years. 2023-01-16 11:52:17 +01:00
udivmodhi4.c Update copyright years. 2023-01-16 11:52:17 +01:00
udivmodsi4.c Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-arm-common.inc Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-c.c Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-compat.c Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-compat.h Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-dw2-btree.h Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-dw2-execute_cfa.h libgcc: Fix uninitialized RA signing on AArch64 [PR107678] 2023-01-18 12:20:35 +00:00
unwind-dw2-fde-compat.c Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-dw2-fde-dip.c libgcc: Fix -Wint-conversion warning in find_fde_tail 2023-07-11 06:19:39 +02:00
unwind-dw2-fde.c preserve base pointer for __deregister_frame [PR110956] 2023-08-11 09:20:27 -06:00
unwind-dw2-fde.h Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-dw2.c libgcc: Fix uninitialized RA signing on AArch64 [PR107678] 2023-01-18 12:20:35 +00:00
unwind-dw2.h libgcc: Fix uninitialized RA signing on AArch64 [PR107678] 2023-01-18 12:20:35 +00:00
unwind-generic.h Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-pe.h Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-seh.c Update copyright years. 2023-01-16 11:52:17 +01:00
unwind-sjlj.c Update copyright years. 2023-01-16 11:52:17 +01:00
unwind.inc Update copyright years. 2023-01-16 11:52:17 +01:00
vtv_end.c Update copyright years. 2023-01-16 11:52:17 +01:00
vtv_end_preinit.c Update copyright years. 2023-01-16 11:52:17 +01:00
vtv_start.c Update copyright years. 2023-01-16 11:52:17 +01:00
vtv_start_preinit.c Update copyright years. 2023-01-16 11:52:17 +01:00