gcc/gcc
Jakub Jelinek 33e89989f6 re PR target/69551 (Wrong code with single element vector insert)
PR target/69551
	* config/i386/i386.c (ix86_expand_vector_set) <case V4SImode>: For
	SSE1, copy target into the temporary reg first before recursing
	on it.

	* gcc.target/i386/pr69551.c: New test.

From-SVN: r232982
2016-01-29 15:14:56 +01:00
..
ada gigi.h (enum attr_type): Rename into... 2016-01-28 11:59:14 +00:00
c re PR debug/66869 (-Wunused-function no longer warns for static declarations without definition) 2016-01-27 20:32:49 +01:00
c-family re PR c++/69267 ([cilkplus] ICE when calling a function with an empty class as an argument) 2016-01-27 10:17:23 -07:00
common system.h (string, algorithm): Include only conditionally. 2016-01-22 16:44:10 +00:00
config re PR target/69551 (Wrong code with single element vector insert) 2016-01-29 15:14:56 +01:00
cp re PR debug/66869 (-Wunused-function no longer warns for static declarations without definition) 2016-01-29 12:14:42 +01:00
doc re PR target/69459 (wrong code with -O2 and vector arithmetics @ x86_64) 2016-01-28 23:32:47 +01:00
fortran re PR fortran/62536 (ICE (segfault) for invalid END BLOCK statement) 2016-01-28 12:34:03 +01:00
ginclude Test __cplusplus instead of __GXX_EXPERIMENTAL_CXX0X__ 2016-01-29 12:29:42 +00:00
go compiler: Accept map composite literals with omitted key types. 2016-01-27 18:51:58 +00:00
java
jit Add missing includes in JIT frontend. 2016-01-26 08:53:17 +00:00
lto HSA: simplify partitioning of HSA kernels and host impls. 2016-01-27 12:50:05 +00:00
objc
objcp
po * zh_CN.po: Update. 2016-01-11 23:56:35 +00:00
testsuite re PR target/69551 (Wrong code with single element vector insert) 2016-01-29 15:14:56 +01:00
ABOUT-GCC-NLS
acinclude.m4
aclocal.m4
addresses.h
alias.c re PR rtl-optimization/68955 (wrong code at -O3 on x86-64-linux-gnu in 32-bit mode) 2016-01-19 13:34:45 +01:00
alias.h
alloc-pool.c
alloc-pool.h
asan.c re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only) 2016-01-27 19:48:30 +01:00
asan.h
attribs.c
attribs.h
auto-inc-dec.c
auto-profile.c
auto-profile.h
backend.h
BASE-VER
basic-block.h
bb-reorder.c system.h (string, algorithm): Include only conditionally. 2016-01-22 16:44:10 +00:00
bb-reorder.h
bitmap.c
bitmap.h
bt-load.c
builtin-attrs.def
builtin-types.def Merge of HSA 2016-01-19 11:35:10 +01:00
builtins.c
builtins.def
builtins.h
caller-save.c
calls.c PR 69246: Invalid REG_ARGS_SIZE for sibcalls 2016-01-15 14:41:10 +00:00
calls.h
ccmp.c [Patch] Fix spurious warning in ccmp.c 2016-01-19 18:02:48 +00:00
ccmp.h
cfg-flags.def
cfg.c
cfg.h
cfganal.c
cfganal.h
cfgbuild.c
cfgbuild.h
cfgcleanup.c
cfgcleanup.h
cfgexpand.c
cfgexpand.h
cfghooks.c
cfghooks.h
cfgloop.c
cfgloop.h
cfgloopanal.c
cfgloopmanip.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
cfgloopmanip.h
cfgrtl.c
cfgrtl.h
cgraph.c re PR lto/69133 (LTO segfault in lto_get_decl_name_mapping() on 483.xalancbmk with -flto-partition=none) 2016-01-19 11:57:41 +00:00
cgraph.h
cgraphbuild.c
cgraphclones.c [PR ipa/66616] Copy can_change_signature flag to artificial thunks 2016-01-11 11:03:44 +01:00
cgraphunit.c cgraphunit.c (cgraph_node::reset): Clear thunk info and instrumented_version. 2016-01-19 13:28:32 +00:00
ChangeLog re PR target/69551 (Wrong code with single element vector insert) 2016-01-29 15:14:56 +01:00
ChangeLog-1997
ChangeLog-1998
ChangeLog-1999
ChangeLog-2000
ChangeLog-2001
ChangeLog-2002
ChangeLog-2003
ChangeLog-2004
ChangeLog-2005
ChangeLog-2006
ChangeLog-2007
ChangeLog-2008
ChangeLog-2009
ChangeLog-2010
ChangeLog-2011
ChangeLog-2012
ChangeLog-2013
ChangeLog-2014
ChangeLog-2015
ChangeLog.dataflow
ChangeLog.gimple-classes
ChangeLog.graphite
ChangeLog.jit
ChangeLog.lib
ChangeLog.ptr
ChangeLog.tree-ssa
ChangeLog.tuples
chkp-builtins.def
cif-code.def
cilk-builtins.def
cilk-common.c
cilk.h
cilkplus.def
collect2-aix.c
collect2-aix.h
collect2.c
collect2.h
collect-utils.c
collect-utils.h
combine-stack-adj.c
combine.c re PR target/69442 (wrong code with -Og and 64bit modulo @ armv7a) 2016-01-26 12:12:03 +01:00
common.md
common.opt common.opt (fkeep-gc-roots-live): New undocumented option. 2016-01-27 17:42:47 +00:00
compare-elim.c
conditions.h
config.build
config.gcc [PATCH 5/6] [DJGPP] Update DJGPP configuration related files 2016-01-12 06:57:10 +02:00
config.host
config.in configure.ac (ac_cv_std_swap_in_utility): New test. 2016-01-26 16:34:24 +00:00
configure re PR target/68380 (NetBSD has SSP in libc) 2016-01-27 09:54:48 -07:00
configure.ac re PR target/68380 (NetBSD has SSP in libc) 2016-01-27 09:54:48 -07:00
context.c
context.h
convert.c
convert.h
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
coretypes.h
coverage.c
coverage.h
cppbuiltin.c
cppbuiltin.h
cppdefault.c
cppdefault.h
cprop.c
cse.c
cselib.c
cselib.h
cstamp-h.in
data-streamer-in.c
data-streamer-out.c
data-streamer.c
data-streamer.h
DATESTAMP Daily bump. 2016-01-29 00:16:13 +00:00
dbgcnt.c
dbgcnt.def
dbgcnt.h
dbxout.c
dbxout.h
dce.c
dce.h
ddg.c
ddg.h
debug.c
debug.h
defaults.h
DEV-PHASE
df-core.c
df-problems.c
df-scan.c
df.h
dfp.c
dfp.h
diagnostic-color.c
diagnostic-color.h
diagnostic-core.h
diagnostic-show-locus.c PR other/69006: fix extra newlines after diagnostics 2016-01-26 17:08:12 +00:00
diagnostic.c PR other/69006: fix extra newlines after diagnostics 2016-01-26 17:08:12 +00:00
diagnostic.def
diagnostic.h PR other/69006: fix extra newlines after diagnostics 2016-01-26 17:08:12 +00:00
dojump.c
dojump.h
dominance.c
dominance.h
domwalk.c
domwalk.h
double-int.c
double-int.h
dse.c re PR rtl-optimization/68955 (wrong code at -O3 on x86-64-linux-gnu in 32-bit mode) 2016-01-19 13:34:45 +01:00
dumpfile.c
dumpfile.h
dwarf2asm.c
dwarf2asm.h
dwarf2cfi.c
dwarf2out.c re PR lto/69393 (ICE in dwarf2out_finish, at dwarf2out.c:27175 with LTO) 2016-01-25 09:31:47 +00:00
dwarf2out.h
emit-rtl.c
emit-rtl.h
errors.c
errors.h
et-forest.c
et-forest.h
except.c
except.h
exec-tool.in
explow.c
explow.h
expmed.c
expmed.h
expr.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
expr.h
fibonacci_heap.h
file-find.c
file-find.h
final.c system.h (string, algorithm): Include only conditionally. 2016-01-22 16:44:10 +00:00
fixed-value.c
fixed-value.h
flag-types.h
flags.h
fold-const-call.c
fold-const-call.h
fold-const.c re PR middle-end/68542 (10% 481.wrf performance regression) 2016-01-18 14:14:35 +00:00
fold-const.h re PR middle-end/50865 (Invalid code generation for INT64_MIN % 1 on x86_64) 2016-01-09 08:37:04 +01:00
fp-test.c
FSFChangeLog
FSFChangeLog.10
FSFChangeLog.11
function.c PR c++/68983 (BE) 2016-01-08 11:01:12 -05:00
function.h
fwprop.c
gcc-ar.c
gcc-main.c
gcc-plugin.h
gcc-rich-location.c
gcc-rich-location.h
gcc-symtab.h
gcc.c Fix memory chunk corruption for opts_obstack (PR jit/68446) 2016-01-19 14:35:16 +00:00
gcc.h
gcov-counter.def
gcov-dump.c
gcov-io.c
gcov-io.h
gcov-iov.c
gcov-tool.c
gcov.c
gcse-common.c
gcse-common.h
gcse.c
gcse.h
gdbasan.in
gdbhooks.py
gdbinit.in
gen-pass-instances.awk
genattr-common.c
genattr.c
genattrtab.c
genautomata.c
gencfn-macros.c
gencheck.c
genchecksum.c
gencodes.c
genconditions.c system.h (string, algorithm): Include only conditionally. 2016-01-22 16:44:10 +00:00
genconfig.c
genconstants.c
genemit.c
genenums.c
generic-match-head.c
generic-match.h
genextract.c
genflags.c
gengenrtl.c
gengtype-lex.l
gengtype-parse.c
gengtype-state.c
gengtype.c remove mark_hook gty attribute 2016-01-13 02:51:11 +00:00
gengtype.h
genhooks.c
genmatch.c
genmddeps.c
genmddump.c
genmodes.c
genmultilib
genopinit.c
genoutput.c
genpeep.c
genpreds.c
genrecog.c re PR bootstrap/69434 (bootstrap failed with --with-arch=corei7 --with-cpu=corei7) 2016-01-23 10:54:19 +01:00
gensupport.c
gensupport.h
gentarget-def.c
ggc-common.c re PR pch/68758 (Invalid read of size 8 in gt_pch_save (ggc-common.c:551)) 2016-01-28 08:39:05 +00:00
ggc-internal.h
ggc-none.c
ggc-page.c
ggc.h
gimple-builder.c
gimple-builder.h
gimple-expr.c
gimple-expr.h
gimple-fold.c re PR tree-optimization/69483 (gcc ICE on x86_64-linux-gnu with "expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p") 2016-01-26 16:51:51 +01:00
gimple-fold.h
gimple-iterator.c
gimple-iterator.h
gimple-laddress.c
gimple-low.c Merge of HSA 2016-01-19 11:35:10 +01:00
gimple-low.h
gimple-match-head.c re PR tree-optimization/69167 (internal compiler error: SSA corruption) 2016-01-08 21:50:24 +01:00
gimple-match.h
gimple-predict.h
gimple-pretty-print.c Merge of HSA 2016-01-19 11:35:10 +01:00
gimple-pretty-print.h
gimple-ssa-backprop.c
gimple-ssa-isolate-paths.c
gimple-ssa-split-paths.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
gimple-ssa-strength-reduction.c re PR tree-optimization/68799 (lto ICE on powerpc64le-linux-gnu builing python 2.7.x) 2016-01-18 02:43:06 +00:00
gimple-ssa.h
gimple-streamer-in.c
gimple-streamer-out.c
gimple-streamer.h
gimple-walk.c Merge of HSA 2016-01-19 11:35:10 +01:00
gimple-walk.h
gimple.c Merge of HSA 2016-01-19 11:35:10 +01:00
gimple.def Merge of HSA 2016-01-19 11:35:10 +01:00
gimple.h Merge of HSA 2016-01-19 11:35:10 +01:00
gimplify-me.c
gimplify-me.h
gimplify.c re PR middle-end/67653 (ICE on valid code on x86_64-linux-gnu: verify_gimple failed) 2016-01-21 00:43:58 +01:00
gimplify.h
glimits.h
godump.c
graph.c
graph.h
graphds.c
graphds.h
graphite-dependences.c new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
graphite-isl-ast-to-gimple.c PR69545: revert patch 2016-01-29 04:31:40 +00:00
graphite-optimize-isl.c Fix optimize_isl dump 2016-01-28 10:23:24 -08:00
graphite-poly.c new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
graphite-scop-detection.c new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
graphite-sese-to-poly.c new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
graphite.c
graphite.h new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
gsstruct.def
gstab.h
gsyms.h
gsyslimits.h
gtm-builtins.def re PR target/68964 (Internal compiler error for test case gcc.dg/tm/20100610.c since r231674) 2016-01-13 09:03:42 -08:00
haifa-sched.c haifa-sched.c (autopref_multipass_init): Work around -Wmaybe-uninitialized warning. 2016-01-18 10:02:42 +01:00
hard-reg-set.h
hash-map-traits.h
hash-map.h
hash-set.h
hash-table.c
hash-table.h Optimise hash_table::empty 2016-01-16 11:03:18 +00:00
hash-traits.h
highlev-plugin-common.h
hooks.c
hooks.h
host-default.c
hosthooks-def.h
hosthooks.h
hsa-brig-format.h Merge of HSA 2016-01-19 11:35:10 +01:00
hsa-brig.c Merge of HSA 2016-01-19 11:35:10 +01:00
hsa-dump.c Merge of HSA 2016-01-19 11:35:10 +01:00
hsa-gen.c hsa-gen.c (get_memory_order_name): Use MEMMODEL_ constants and name. 2016-01-19 15:10:40 +00:00
hsa-regalloc.c Merge of HSA 2016-01-19 11:35:10 +01:00
hsa.c HSA: simplify partitioning of HSA kernels and host impls. 2016-01-27 12:50:05 +00:00
hsa.h Merge of HSA 2016-01-19 11:35:10 +01:00
hw-doloop.c
hw-doloop.h
hwint.c
hwint.h
ifcvt.c re PR rtl-optimization/68920 (Undesirable if-conversion for a rarely taken branch) 2016-01-21 16:05:14 +00:00
ifcvt.h
inchash.c
inchash.h
incpath.c
incpath.h
init-regs.c
input.c
input.h
insn-addr.h
insn-notes.def
internal-fn.c
internal-fn.def
internal-fn.h
intl.c
intl.h
ipa-chkp.c system.h (string, algorithm): Include only conditionally. 2016-01-22 16:44:10 +00:00
ipa-chkp.h
ipa-comdats.c
ipa-cp.c [PR ipa/69044] Do not clone for param removal when not possible 2016-01-11 11:09:17 +01:00
ipa-devirt.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
ipa-hsa.c Merge of HSA 2016-01-19 11:35:10 +01:00
ipa-icf-gimple.c
ipa-icf-gimple.h
ipa-icf.c re PR ipa/68148 (Devirtualization only applies to last of multiple successive calls) 2016-01-15 11:00:24 +00:00
ipa-icf.h
ipa-inline-analysis.c
ipa-inline-transform.c
ipa-inline.c ipa-inline.c (can_inline_edge_p): Back out overzealous check on flag_non_call_exceptions compatibility. 2016-01-22 11:06:06 +00:00
ipa-inline.h
ipa-polymorphic-call.c re PR c++/66487 (sanitizer/warnings for lifetime DSE) 2016-01-13 23:47:45 +00:00
ipa-profile.c
ipa-prop.c ipa-prop.c (ipa_set_jf_constant): Remove redundant unshare_expr. 2016-01-22 12:09:58 +00:00
ipa-prop.h
ipa-pure-const.c
ipa-ref.c
ipa-ref.h
ipa-reference.c
ipa-reference.h
ipa-split.c
ipa-utils.c
ipa-utils.h
ipa-visibility.c
ipa.c
ira-build.c
ira-color.c
ira-conflicts.c
ira-costs.c
ira-emit.c
ira-int.h
ira-lives.c
ira.c * ira.c (ira): Update regstat data if we deleted insns. 2016-01-19 13:02:17 +00:00
ira.h
is-a.h
jump.c
langhooks-def.h
langhooks.c
langhooks.h
LANGUAGES
lcm.c
lcm.h
libfuncs.h
limitx.h
limity.h
lists.c
lock-and-run.sh
loop-doloop.c re PR rtl-optimization/69014 (gcc.c-torture/execute/991023-1.c FAILs with -Os -fmodulo-sched -fno-tree-vrp) 2016-01-14 15:12:53 -08:00
loop-init.c
loop-invariant.c
loop-iv.c
loop-unroll.c
loop-unroll.h
lower-subreg.c
lower-subreg.h
lra-assigns.c
lra-coalesce.c re PR rtl-optimization/68990 (wrong code at -O3 on x86_64-pc-linux-gnu in 32-bit mode.) 2016-01-21 16:01:22 +00:00
lra-constraints.c
lra-eliminations.c re PR debug/69244 (ICE in plus_constant, at explow.c:87 on i686-linux-gnu) 2016-01-14 20:57:34 +01:00
lra-int.h
lra-lives.c
lra-remat.c re PR middle-end/69542 (-fcompare-debug failure in simplify-rtx.c on i?86 since r232905) 2016-01-28 22:01:51 +01:00
lra-spills.c re PR rtl-optimization/69030 (ICE on x86_64-linux-gnu at -O2 and above in 32-bit mode (ICE in copy_rtx, at rtl.c:358)) 2016-01-15 19:33:33 +00:00
lra.c
lra.h
lto-cgraph.c Mark symbols in offload tables with force_output in read_offload_tables 2016-01-14 20:01:39 +00:00
lto-compress.c
lto-compress.h
lto-opts.c
lto-section-in.c Merge of HSA 2016-01-19 11:35:10 +01:00
lto-section-names.h
lto-section-out.c
lto-streamer-in.c
lto-streamer-out.c lto-streamer-out.c (lto_output): Do not stream instrumentation thunks. 2016-01-19 11:55:10 +00:00
lto-streamer.c
lto-streamer.h Merge of HSA 2016-01-19 11:35:10 +01:00
lto-wrapper.c re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only) 2016-01-26 15:25:56 +01:00
machmode.def
machmode.h
main.c
Makefile.in fix PR68343: disable fuse-*.c tests for isl 0.14 or earlier 2016-01-26 00:19:11 +00:00
match.pd re PR middle-end/69537 (Incorrect -Wmaybe-uninitialized warning with enum variable) 2016-01-29 08:36:04 +00:00
mcf.c
mem-stats-traits.h
mem-stats.h system.h (string, algorithm): Include only conditionally. 2016-01-22 16:44:10 +00:00
memory-block.cc
memory-block.h
mkconfig.sh
mode-classes.def
mode-switching.c
modulo-sched.c re PR target/69252 (gcc.dg/vect/vect-iv-9.c FAILs with -Os -fmodulo-sched -fmodulo-sched-allow-regmoves -fsched-pressure) 2016-01-21 15:58:29 -07:00
multiple_target.c
omp-builtins.def Merge of HSA 2016-01-19 11:35:10 +01:00
omp-low.c omp-low.h (oacc_fn_attrib_kernels_p): Declare. 2016-01-26 14:32:30 +00:00
omp-low.h omp-low.h (oacc_fn_attrib_kernels_p): Declare. 2016-01-26 14:32:30 +00:00
ONEWS
opt-functions.awk
opt-gather.awk
opt-include.awk
opt-read.awk
optabs-libfuncs.c
optabs-libfuncs.h
optabs-query.c
optabs-query.h
optabs-tree.c Tidy: remove reduc_xxx_optab migration code. 2016-01-14 16:30:56 +00:00
optabs-tree.h Tidy: remove reduc_xxx_optab migration code. 2016-01-14 16:30:56 +00:00
optabs.c re PR target/69010 (Boolean vector constant with a scalar mode is expanded incorrectly) 2016-01-11 10:27:17 +00:00
optabs.def Tidy: remove reduc_xxx_optab migration code. 2016-01-14 16:30:56 +00:00
optabs.h
optc-gen.awk
optc-save-gen.awk
opth-gen.awk
opts-common.c
opts-diagnostic.h
opts-global.c
opts.c re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only) 2016-01-26 14:01:44 +01:00
opts.h re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only) 2016-01-26 14:01:44 +01:00
output.h
params-enum.h
params-list.h
params.c
params.def re PR tree-optimization/68398 (coremark regression due to r229685) 2016-01-27 12:19:47 -07:00
params.h
pass_manager.h
passes.c
passes.def Merge of HSA 2016-01-19 11:35:10 +01:00
plugin.c
plugin.def
plugin.h
postreload-gcse.c
postreload.c
predict.c
predict.def
predict.h
prefix.c
prefix.h
pretty-print.c
pretty-print.h PR other/69006: fix extra newlines after diagnostics 2016-01-26 17:08:12 +00:00
print-rtl.c
print-rtl.h
print-tree.c
print-tree.h
profile.c
profile.h
read-md.c
read-md.h
read-rtl.c
README.Portability
real.c
real.h
realmpfr.c
realmpfr.h
recog.c
recog.h
ree.c
reg-notes.def
reg-stack.c
regcprop.c
regcprop.h
reginfo.c
regrename.c
regrename.h
regs.h
regset.h
regstat.c
reload1.c
reload.c
reload.h
reorg.c
resource.c
resource.h
rtl-chkp.c
rtl-chkp.h
rtl-error.c
rtl-error.h
rtl-iter.h
rtl.c
rtl.def
rtl.h Fix PR66178, ICE due to misexpansion of constant expressions involving labels. 2016-01-21 18:10:03 +00:00
rtlanal.c Fix PR66178, ICE due to misexpansion of constant expressions involving labels. 2016-01-21 18:10:03 +00:00
rtlhash.c
rtlhash.h
rtlhooks-def.h
rtlhooks.c
sancov.c
sanitizer.def re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only) 2016-01-27 19:48:30 +01:00
sanopt.c
sbitmap.c
sbitmap.h
sched-deps.c
sched-ebb.c
sched-int.h
sched-rgn.c
sdbout.c
sdbout.h
sel-sched-dump.c
sel-sched-dump.h
sel-sched-ir.c
sel-sched-ir.h
sel-sched.c
sel-sched.h
sese.c new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
sese.h new scop schedule for isl-0.15 2016-01-26 00:19:20 +00:00
shrink-wrap.c re PR debug/65779 (undefined local symbol on powerpc [regression]) 2016-01-19 14:21:04 +01:00
shrink-wrap.h
signop.h
simplify-rtx.c Fix missed comment fix in last change. 2016-01-21 18:11:10 +00:00
sparseset.c
sparseset.h
spellcheck-tree.c
spellcheck.c
spellcheck.h
sreal.c
sreal.h
ssa-iterators.h
ssa.h
stab.def
stack-ptr-mod.c
statistics.c
statistics.h
stmt.c
stmt.h
stor-layout.c
stor-layout.h
store-motion.c
streamer-hooks.c
streamer-hooks.h
stringpool.c
stringpool.h
symbol-summary.h
symtab.c symtab.c (symtab_node::asm_name): Do not call printable name directly. 2016-01-19 11:51:18 +00:00
sync-builtins.def
system.h configure.ac (ac_cv_std_swap_in_utility): New test. 2016-01-26 16:34:24 +00:00
target-def.h
target-globals.c
target-globals.h
target-hooks-macros.h
target-insns.def
target.def [Patch 1/4] Simplify the representation of CCMP patterns by using 2016-01-19 13:59:56 +00:00
target.h
targhooks.c
targhooks.h
timevar.c
timevar.def Merge of HSA 2016-01-19 11:35:10 +01:00
timevar.h
tlink.c
toplev.c Fix memory chunk corruption for opts_obstack (PR jit/68446) 2016-01-19 14:35:16 +00:00
toplev.h
tracer.c
tracer.h
trans-mem.c re PR middle-end/60908 (compiler bug related to trans-mem.c) 2016-01-26 09:29:02 -08:00
trans-mem.h
tree-affine.c
tree-affine.h
tree-call-cdce.c
tree-cfg.c re PR middle-end/68542 (10% 481.wrf performance regression) 2016-01-18 14:14:35 +00:00
tree-cfg.h
tree-cfgcleanup.c PR c++/68983 (BE) 2016-01-08 11:01:12 -05:00
tree-cfgcleanup.h
tree-chkp-opt.c
tree-chkp.c
tree-chkp.h
tree-chrec.c
tree-chrec.h
tree-complex.c re PR middle-end/68146 (ice in gimple_stmt_nonnegative_warnv_p with -O2) 2016-01-14 16:25:22 +01:00
tree-core.h Merge of HSA 2016-01-19 11:35:10 +01:00
tree-data-ref.c Handle DR_NUM_DIMENSIONS == 0 in initialize_data_dependence_relation 2016-01-26 22:11:51 +00:00
tree-data-ref.h
tree-dfa.c re PR tree-optimization/69355 (Wrong results with -O1 optimization) 2016-01-21 08:59:32 +01:00
tree-dfa.h
tree-diagnostic.c
tree-diagnostic.h
tree-dump.c
tree-dump.h
tree-eh.c
tree-eh.h
tree-emutls.c
tree-hash-traits.h
tree-hasher.h
tree-if-conv.c
tree-inline.c Avoid extraneous remapping in copy_gimple_seq_and_replace_locals 2016-01-15 13:43:49 +01:00
tree-inline.h Avoid extraneous remapping in copy_gimple_seq_and_replace_locals 2016-01-15 13:43:49 +01:00
tree-into-ssa.c
tree-into-ssa.h
tree-iterator.c
tree-iterator.h
tree-loop-distribution.c
tree-nested.c
tree-nested.h
tree-nrv.c
tree-object-size.c
tree-object-size.h
tree-outof-ssa.c
tree-outof-ssa.h
tree-parloops.c omp-low.h (oacc_fn_attrib_kernels_p): Declare. 2016-01-26 14:32:30 +00:00
tree-parloops.h
tree-pass.h Merge of HSA 2016-01-19 11:35:10 +01:00
tree-phinodes.c
tree-phinodes.h
tree-predcom.c
tree-pretty-print.c Merge of HSA 2016-01-19 11:35:10 +01:00
tree-pretty-print.h
tree-profile.c
tree-scalar-evolution.c Enhance SCEV to follow copies of SSA_NAMEs. 2016-01-18 12:46:54 +00:00
tree-scalar-evolution.h
tree-sra.c [PR 69355] Correct hole detection when total_scalarization fails 2016-01-27 15:51:17 +01:00
tree-ssa-address.c
tree-ssa-address.h
tree-ssa-alias.c
tree-ssa-alias.h
tree-ssa-ccp.c
tree-ssa-coalesce.c
tree-ssa-coalesce.h
tree-ssa-copy.c
tree-ssa-dce.c re PR middle-end/69547 (no-op array initializer emits an empty loop) 2016-01-29 11:21:19 +00:00
tree-ssa-dom.c re PR tree-optimization/69347 (excessive compile time with -O2) 2016-01-22 13:18:59 -07:00
tree-ssa-dom.h
tree-ssa-dse.c
tree-ssa-forwprop.c
tree-ssa-ifcombine.c
tree-ssa-live.c
tree-ssa-live.h
tree-ssa-loop-ch.c
tree-ssa-loop-im.c re PR tree-optimization/69452 (gcc ICE at -O3 on x86_64-linux-gnu in with verify_ssa failed) 2016-01-26 11:51:01 +00:00
tree-ssa-loop-ivcanon.c
tree-ssa-loop-ivopts.c common.opt (fkeep-gc-roots-live): New undocumented option. 2016-01-27 17:42:47 +00:00
tree-ssa-loop-ivopts.h
tree-ssa-loop-manip.c
tree-ssa-loop-manip.h
tree-ssa-loop-niter.c
tree-ssa-loop-niter.h
tree-ssa-loop-prefetch.c
tree-ssa-loop-unswitch.c
tree-ssa-loop.c omp-low.h (oacc_fn_attrib_kernels_p): Declare. 2016-01-26 14:32:30 +00:00
tree-ssa-loop.h
tree-ssa-math-opts.c re PR tree-optimization/67781 (wrong code generated on big-endian with -O1 -fexpensive-optimizations) 2016-01-08 09:21:19 +00:00
tree-ssa-operands.c
tree-ssa-operands.h
tree-ssa-phionlycprop.c
tree-ssa-phiopt.c
tree-ssa-phiprop.c
tree-ssa-pre.c re PR tree-optimization/69376 (wrong code at -Os and above on x86_64-linux-gnu) 2016-01-25 09:05:47 +00:00
tree-ssa-propagate.c
tree-ssa-propagate.h
tree-ssa-reassoc.c
tree-ssa-sccvn.c re PR tree-optimization/69376 (wrong code at -Os and above on x86_64-linux-gnu) 2016-01-25 09:05:47 +00:00
tree-ssa-sccvn.h re PR tree-optimization/69376 (wrong code at -Os and above on x86_64-linux-gnu) 2016-01-25 09:05:47 +00:00
tree-ssa-scopedtables.c re PR tree-optimization/69336 (Constant value not detected) 2016-01-19 13:27:11 +00:00
tree-ssa-scopedtables.h
tree-ssa-sink.c
tree-ssa-strlen.c
tree-ssa-structalias.c Fix infinite recursion in create_variable_info_for_1 2016-01-13 15:51:33 +00:00
tree-ssa-tail-merge.c
tree-ssa-ter.c
tree-ssa-ter.h
tree-ssa-threadbackward.c re PR tree-optimization/68398 (coremark regression due to r229685) 2016-01-27 12:19:47 -07:00
tree-ssa-threadbackward.h
tree-ssa-threadedge.c
tree-ssa-threadedge.h
tree-ssa-threadupdate.c re PR tree-optimization/69196 (code size regression with jump threading at -O2) 2016-01-25 12:19:09 -07:00
tree-ssa-threadupdate.h re PR tree-optimization/69196 (code size regression with jump threading at -O2) 2016-01-25 12:19:09 -07:00
tree-ssa-uncprop.c re PR tree-optimization/69270 (DOM should exploit range information to create more equivalences) 2016-01-15 15:32:05 -07:00
tree-ssa-uninit.c re PR tree-optimization/69013 (gfortran-5.3.0 ICE in prune_uninit_phi_opnds_in_unrealizable_paths, at tree-ssa-uninit.c:1121) 2016-01-13 12:15:01 +00:00
tree-ssa.c
tree-ssa.h
tree-ssanames.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
tree-ssanames.h re PR tree-optimization/69270 (DOM should exploit range information to create more equivalences) 2016-01-15 15:32:05 -07:00
tree-stdarg.c re PR tree-optimization/69162 (ICE in create_tmp_var, at gimple-expr.c:468) 2016-01-08 11:14:29 +01:00
tree-stdarg.h
tree-streamer-in.c re PR lto/69254 (ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only) 2016-01-27 19:48:30 +01:00
tree-streamer-out.c re PR lto/69393 (ICE in dwarf2out_finish, at dwarf2out.c:27175 with LTO) 2016-01-25 09:31:47 +00:00
tree-streamer.c
tree-streamer.h
tree-switch-conversion.c
tree-tailcall.c
tree-vect-data-refs.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
tree-vect-generic.c
tree-vect-loop-manip.c re PR tree-optimization/69466 (ICE: Invalid PHI argument after vectorization (on -O2)) 2016-01-28 09:10:30 +00:00
tree-vect-loop.c re PR tree-optimization/69166 (ICE in get_initial_def_for_reduction, at tree-vect-loop.c:4188) 2016-01-27 14:54:03 +00:00
tree-vect-patterns.c re PR testsuite/69007 (test cases gcc.dg/vect/vect-reduc-dot-s8a.c fails starting with r231815) 2016-01-12 11:39:54 +00:00
tree-vect-slp.c re PR tree-optimization/69297 (Performance regression after r230020) 2016-01-18 14:25:56 +00:00
tree-vect-stmts.c tree-vect-stmts.c (vectorizable_comparison): Add NULL check for vectype. 2016-01-28 10:09:12 +00:00
tree-vectorizer.c
tree-vectorizer.h re PR tree-optimization/66856 (ICE in compute_live_loop_exits, at tree-ssa-loop-manip.c:234) 2016-01-15 15:43:48 +00:00
tree-vrp.c tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. 2016-01-23 15:13:53 +01:00
tree.c re PR c++/68782 (bad reference member formed with constexpr) 2016-01-26 16:34:10 -05:00
tree.def
tree.h * tree.h (BINFO_FLAG_0): Rename from BINFO_MARKED. 2016-01-28 10:45:44 -05:00
treestruct.def
tsan.c
tsan.h
tsystem.h
typeclass.h
typed-splay-tree.h
ubsan.c
ubsan.h
valtrack.c
valtrack.h
value-prof.c re PR middle-end/69156 (gcc.dg/pr59630.c: ICE: verify_gimple failed: non-trivial conversion at assignment with -fno-tree-ccp) 2016-01-13 20:21:59 +01:00
value-prof.h
var-tracking.c re PR rtl-optimization/69217 (ICE at var-tracking.c:5038 Segmentation fault) 2016-01-26 20:57:37 +00:00
varasm.c
varasm.h
varpool.c Mark symbols in offload tables with force_output in read_offload_tables 2016-01-14 20:01:39 +00:00
vec.c
vec.h
version.c
version.h
vmsdbg.h
vmsdbgout.c
vtable-verify.c
vtable-verify.h
web.c
wide-int-print.cc
wide-int-print.h
wide-int.cc PR 69400: Invalid 128-bit modulus result 2016-01-26 09:53:33 +00:00
wide-int.h re PR tree-optimization/69399 (wrong code with -O and int128) 2016-01-27 12:40:04 +01:00
xcoff.h
xcoffout.c
xcoffout.h

Copyright (C) 2000-2016 Free Software Foundation, Inc.

This file is intended to contain a few notes about writing C code
within GCC so that it compiles without error on the full range of
compilers GCC needs to be able to compile on.

The problem is that many ISO-standard constructs are not accepted by
either old or buggy compilers, and we keep getting bitten by them.
This knowledge until now has been sparsely spread around, so I
thought I'd collect it in one useful place.  Please add and correct
any problems as you come across them.

I'm going to start from a base of the ISO C90 standard, since that is
probably what most people code to naturally.  Obviously using
constructs introduced after that is not a good idea.

For the complete coding style conventions used in GCC, please read
http://gcc.gnu.org/codingconventions.html


String literals
---------------

Irix6 "cc -n32" and OSF4 "cc" have problems with constant string
initializers with parens around it, e.g.

const char string[] = ("A string");

This is unfortunate since this is what the GNU gettext macro N_
produces.  You need to find a different way to code it.

Some compilers like MSVC++ have fairly low limits on the maximum
length of a string literal; 509 is the lowest we've come across.  You
may need to break up a long printf statement into many smaller ones.


Empty macro arguments
---------------------

ISO C (6.8.3 in the 1990 standard) specifies the following:

If (before argument substitution) any argument consists of no
preprocessing tokens, the behavior is undefined.

This was relaxed by ISO C99, but some older compilers emit an error,
so code like

#define foo(x, y) x y
foo (bar, )

needs to be coded in some other way.


Avoid unnecessary test before free
----------------------------------

Since SunOS 4 stopped being a reasonable portability target,
(which happened around 2007) there has been no need to guard
against "free (NULL)".  Thus, any guard like the following
constitutes a redundant test:

  if (P)
    free (P);

It is better to avoid the test.[*]
Instead, simply free P, regardless of whether it is NULL.

[*] However, if your profiling exposes a test like this in a
performance-critical loop, say where P is nearly always NULL, and
the cost of calling free on a NULL pointer would be prohibitively
high, consider using __builtin_expect, e.g., like this:

  if (__builtin_expect (ptr != NULL, 0))
    free (ptr);



Trigraphs
---------

You weren't going to use them anyway, but some otherwise ISO C
compliant compilers do not accept trigraphs.


Suffixes on Integer Constants
-----------------------------

You should never use a 'l' suffix on integer constants ('L' is fine),
since it can easily be confused with the number '1'.


			Common Coding Pitfalls
			======================

errno
-----

errno might be declared as a macro.


Implicit int
------------

In C, the 'int' keyword can often be omitted from type declarations.
For instance, you can write

  unsigned variable;

as shorthand for

  unsigned int variable;

There are several places where this can cause trouble.  First, suppose
'variable' is a long; then you might think

  (unsigned) variable

would convert it to unsigned long.  It does not.  It converts to
unsigned int.  This mostly causes problems on 64-bit platforms, where
long and int are not the same size.

Second, if you write a function definition with no return type at
all:

  operate (int a, int b)
  {
    ...
  }

that function is expected to return int, *not* void.  GCC will warn
about this.

Implicit function declarations always have return type int.  So if you
correct the above definition to

  void
  operate (int a, int b)
  ...

but operate() is called above its definition, you will get an error
about a "type mismatch with previous implicit declaration".  The cure
is to prototype all functions at the top of the file, or in an
appropriate header.

Char vs unsigned char vs int
----------------------------

In C, unqualified 'char' may be either signed or unsigned; it is the
implementation's choice.  When you are processing 7-bit ASCII, it does
not matter.  But when your program must handle arbitrary binary data,
or fully 8-bit character sets, you have a problem.  The most obvious
issue is if you have a look-up table indexed by characters.

For instance, the character '\341' in ISO Latin 1 is SMALL LETTER A
WITH ACUTE ACCENT.  In the proper locale, isalpha('\341') will be
true.  But if you read '\341' from a file and store it in a plain
char, isalpha(c) may look up character 225, or it may look up
character -31.  And the ctype table has no entry at offset -31, so
your program will crash.  (If you're lucky.)

It is wise to use unsigned char everywhere you possibly can.  This
avoids all these problems.  Unfortunately, the routines in <string.h>
take plain char arguments, so you have to remember to cast them back
and forth - or avoid the use of strxxx() functions, which is probably
a good idea anyway.

Another common mistake is to use either char or unsigned char to
receive the result of getc() or related stdio functions.  They may
return EOF, which is outside the range of values representable by
char.  If you use char, some legal character value may be confused
with EOF, such as '\377' (SMALL LETTER Y WITH UMLAUT, in Latin-1).
The correct choice is int.

A more subtle version of the same mistake might look like this:

  unsigned char pushback[NPUSHBACK];
  int pbidx;
  #define unget(c) (assert(pbidx < NPUSHBACK), pushback[pbidx++] = (c))
  #define get(c) (pbidx ? pushback[--pbidx] : getchar())
  ...
  unget(EOF);

which will mysteriously turn a pushed-back EOF into a SMALL LETTER Y
WITH UMLAUT.


Other common pitfalls
---------------------

o Expecting 'plain' char to be either sign or unsigned extending.

o Shifting an item by a negative amount or by greater than or equal to
  the number of bits in a type (expecting shifts by 32 to be sensible
  has caused quite a number of bugs at least in the early days).

o Expecting ints shifted right to be sign extended.

o Modifying the same value twice within one sequence point.

o Host vs. target floating point representation, including emitting NaNs
  and Infinities in a form that the assembler handles.

o qsort being an unstable sort function (unstable in the sense that
  multiple items that sort the same may be sorted in different orders
  by different qsort functions).

o Passing incorrect types to fprintf and friends.

o Adding a function declaration for a module declared in another file to
  a .c file instead of to a .h file.