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* [Bug tree-optimization/60896] New: [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449
@ 2014-04-19 17:10 trippels at gcc dot gnu.org
2014-04-22 8:57 ` [Bug tree-optimization/60896] " rguenth at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-04-19 17:10 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60896
Bug ID: 60896
Summary: [4.10 Regression] ICE: in
vect_get_vec_def_for_operand, at
tree-vect-stmts.c:1449
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
markus@x4 skia % cat test.ii
struct A
{
int m_fn1 ();
short *m_fn2 ();
};
struct B
{
void *fC;
};
int a, b;
unsigned char i;
void fn1 (unsigned char *p1, A &p2)
{
int c = p2.m_fn1 ();
for (int d = 0; c; d++)
{
short *e = p2.m_fn2 ();
unsigned char *f = &p1[0];
for (int g = 0; g < a; g++)
{
int h = e[0];
b += h * f[g];
}
}
}
void fn2 (A &p1, A &p2, B &p3)
{
int j = p2.m_fn1 ();
for (int k = 0; j; k++)
if (0)
;
else
fn1 (&i, p1);
if (p3.fC)
;
else
;
}
markus@x4 skia % g++ -c -O3 test.ii
test.ii: In function ‘void fn2(A&, A&, B&)’:
test.ii:27:6: internal compiler error: in vect_get_vec_def_for_operand, at
tree-vect-stmts.c:1449
void fn2 (A &p1, A &p2, B &p3)
^
Please submit a full bug report,
>From gcc-bugs-return-449349-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Apr 19 18:09:25 2014
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From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/60897] New: Mangled function name in warning during -fprofile-use phase of Firefox build
Date: Sat, 19 Apr 2014 18:09:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60897
Bug ID: 60897
Summary: Mangled function name in warning during -fprofile-use
phase of Firefox build
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
During Firefox PGO build I noticed an mangled function name
in a warning during -fprofile-use phase:
markus@x4 src % c++ -o Unified_cpp_js_src2.o -c -I../../dist/system_wrappers
-include /var/tmp/mozilla-central/config/gcc_hidden.h -DENABLE_PARALLEL_JS
-DENABLE_BINARYDATA -DENABLE_SHARED_ARRAY_BUFFER -DEXPORT_JS_API
-DJS_HAS_CTYPES -DDLL_PREFIX='"lib"' -DDLL_SUFFIX='".so"' -DUSE_SYSTEM_MALLOC=1
-DENABLE_ASSEMBLER=1 -DENABLE_JIT=1 -DMOZ_GLUE_IN_PROGRAM -DNO_NSPR_10_SUPPORT
-DUSE_ZLIB -I/var/tmp/mozilla-central/js/src -I.
-I/usr/lib64/libffi-3.0.13/include
-I/var/tmp/mozilla-central/js/src/../../mfbt/double-conversion
-I../../dist/include -I/usr/include/nspr -fPIC -DMOZILLA_CLIENT
-include ../../js/src/js-confdefs.h -MD -MP -MF .deps/Unified_cpp_js_src2.o.pp
-Wall -Wpointer-arith -Woverloaded-virtual -Werror=return-type
-Werror=int-to-pointer-cast -Wtype-limits -Wempty-body -Werror=conversion-null
-Wsign-compare -Wno-invalid-offsetof -Wcast-align -fprofile-use
-fprofile-correction -ffunction-sections -fdata-sections -march=amdfam10
-fno-rtti -fno-exceptions -fno-math-errno -std=gnu++0x -pthread -pipe -DNDEBUG
-DTRIMMED -O3 -fomit-frame-pointer
/var/tmp/moz-build-dir/js/src/Unified_cpp_js_src2.cpp
In file included from
/var/tmp/moz-build-dir/js/src/Unified_cpp_js_src2.cpp:106:0:
/var/tmp/mozilla-central/js/src/jit/BaselineIC.cpp: In function ‘bool
js::jit::_ZN2js3jitL26TryAttachNativeGetPropStubEP9JSContextN2JS6HandleIP8JSScriptEEPhPNS0_18ICGetProp_FallbackENS4_IPNS_12PropertyNameEEENS4_INS3_5ValueEEESF_Pb.isra.1329(JSContext*,
JS::HandleScript, jsbytecode*, js::jit::ICGetProp_Fallback*,
js::HandlePropertyName, JS::HandleValue, bool*)’:
/var/tmp/mozilla-central/js/src/jit/BaselineIC.cpp:6215:13: warning:
‘domProxyHasGeneration’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
if (domProxyHasGeneration) {
^
/var/tmp/mozilla-central/js/src/jit/BaselineIC.cpp:6245:20: warning:
‘domProxyShadowsResult’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
if (isDOMProxy && domProxyShadowsResult == Shadows) {
^
markus@x4 src % c++filt
_ZN2js3jitL26TryAttachNativeGetPropStubEP9JSContextN2JS6HandleIP8JSScriptEEPhPNS0_18ICGetProp_FallbackENS4_IPNS_12PropertyNameEEENS4_INS3_5ValueEEESF_Pb.isra.1329
js::jit::TryAttachNativeGetPropStub(JSContext*, JS::Handle<JSScript*>, unsigned
char*, js::jit::ICGetProp_Fallback*, JS::Handle<js::PropertyName*>,
JS::Handle<JS::Value>, JS::Handle<JS::Value>, bool*) [clone .isra.1329]
>From gcc-bugs-return-449350-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Apr 19 18:09:35 2014
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From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/60897] Mangled function name in warning during -fprofile-use phase of Firefox build
Date: Sat, 19 Apr 2014 18:09:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id`897
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.9.1
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60896] [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449
2014-04-19 17:10 [Bug tree-optimization/60896] New: [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449 trippels at gcc dot gnu.org
@ 2014-04-22 8:57 ` rguenth at gcc dot gnu.org
2014-04-23 18:12 ` mpolacek at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-04-22 8:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60896
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-04-22
Target Milestone|--- |4.10.0
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60896] [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449
2014-04-19 17:10 [Bug tree-optimization/60896] New: [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449 trippels at gcc dot gnu.org
2014-04-22 8:57 ` [Bug tree-optimization/60896] " rguenth at gcc dot gnu.org
@ 2014-04-23 18:12 ` mpolacek at gcc dot gnu.org
2014-04-23 23:03 ` congh at google dot com
2014-04-25 0:21 ` congh at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2014-04-23 18:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60896
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r209524.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60896] [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449
2014-04-19 17:10 [Bug tree-optimization/60896] New: [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449 trippels at gcc dot gnu.org
2014-04-22 8:57 ` [Bug tree-optimization/60896] " rguenth at gcc dot gnu.org
2014-04-23 18:12 ` mpolacek at gcc dot gnu.org
@ 2014-04-23 23:03 ` congh at google dot com
2014-04-25 0:21 ` congh at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: congh at google dot com @ 2014-04-23 23:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60896
--- Comment #3 from Cong Hou <congh at google dot com> ---
Created attachment 32668
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32668&action=edit
The patch to fix PR60896
The reason of this issue is that those statements in PATTERN_DEF_SEQ in
pre-recognized widen-mult pattern are not forwarded to later recognized
dot-product pattern. I have created a patch to fix this.
Another issue is that the def types of statements in PATTERN_DEF_SEQ are
assigned with the def type of the pattern statement. This is incorrect for
reduction pattern statement, in which case all statements in PATTERN_DEF_SEQ
will all be vect_reduction_def, and none of them will be vectorized later. The
def type of statement in PATTERN_DEF_SEQ should always be vect_internal_def.
This patch will also be submitted to gcc-patch.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60896] [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449
2014-04-19 17:10 [Bug tree-optimization/60896] New: [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449 trippels at gcc dot gnu.org
` (2 preceding siblings ...)
2014-04-23 23:03 ` congh at google dot com
@ 2014-04-25 0:21 ` congh at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: congh at gcc dot gnu.org @ 2014-04-25 0:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60896
--- Comment #4 from Cong Hou <congh at gcc dot gnu.org> ---
Author: congh
Date: Fri Apr 25 00:20:44 2014
New Revision: 209773
URL: http://gcc.gnu.org/viewcvs?rev=209773&root=gcc&view=rev
Log:
2014-04-24 Cong Hou <congh@google.com>
PR tree-optimization/60896
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Pick up
all statements in PATTERN_DEF_SEQ in recognized widen-mult pattern.
(vect_mark_pattern_stmts): Set the def type of all statements in
PATTERN_DEF_SEQ as vect_internal_def.
2014-04-24 Cong Hou <congh@google.com>
PR tree-optimization/60896
* g++.dg/vect/pr60896.cc: New test.
Added:
trunk/gcc/testsuite/g++.dg/vect/pr60896.cc
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-patterns.c
^ permalink raw reply [flat|nested] 5+ messages in thread
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2014-04-19 17:10 [Bug tree-optimization/60896] New: [4.10 Regression] ICE: in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1449 trippels at gcc dot gnu.org
2014-04-22 8:57 ` [Bug tree-optimization/60896] " rguenth at gcc dot gnu.org
2014-04-23 18:12 ` mpolacek at gcc dot gnu.org
2014-04-23 23:03 ` congh at google dot com
2014-04-25 0:21 ` congh at gcc dot gnu.org
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