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* [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921
@ 2020-11-12 3:00 seurer at gcc dot gnu.org
2020-11-12 7:17 ` [Bug bootstrap/97806] " rguenth at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: seurer at gcc dot gnu.org @ 2020-11-12 3:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
Bug ID: 97806
Summary: [11 regression] bootstrap ICE starting with r11-4921
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:86cca5cc14602814b98e55aae313fbe237af1b04, r11-4921
commit 86cca5cc14602814b98e55aae313fbe237af1b04
Author: Richard Biener <rguenther@suse.de>
Date: Wed Nov 11 16:09:17 2020 +0100
/bin/sh ../libtool --tag=CC --mode=compile
/home/seurer/gcc/git/build/gcc-test/./prev-gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/./prev-gcc/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/lib/
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/include
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/sys-include
-fchecking=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1
-DHAVE_LOCALE_H=1 -DHAVE_WCHAR_H=1 -DHAVE_STDARG=1 -DHAVE_SYS_TIME_H=1
-DHAVE_STRUCT_LCONV_DECIMAL_POINT=1 -DHAVE_STRUCT_LCONV_THOUSANDS_SEP=1
-DHAVE_ALLOCA_H=1 -DHAVE_STDINT_H=1 -DHAVE_VA_COPY=1 -DHAVE_SETLOCALE=1
-DHAVE_GETTIMEOFDAY=1 -DHAVE_LONG_LONG=1 -DHAVE_INTMAX_T=1
-DMPFR_HAVE_INTMAX_MAX=1 -DMPFR_HAVE_FESETROUND=1 -DHAVE_DENORMS=1
-DHAVE_SIGNEDZ=1 -DHAVE_ROUND=1 -DHAVE_TRUNC=1 -DHAVE_FLOOR=1 -DHAVE_CEIL=1
-DHAVE_NEARBYINT=1 -DMPFR_USE_THREAD_SAFE=1 -DMPFR_USE_C11_THREAD_SAFE=1
-DHAVE_CLOCK_GETTIME=1 -DLT_OBJDIR=\".libs/\" -DHAVE_ATTRIBUTE_MODE=1
-DHAVE___GMPN_ROOTREM=1 -DHAVE___GMPN_SBPI1_DIVAPPR_Q=1 -I.
-I/home/seurer/gcc/git/gcc-test/mpfr/src
-I/home/seurer/gcc/git/build/gcc-test/gmp -DNO_ASM -g -O2 -fchecking=1 -MT
sub1sp.lo -MD -MP -MF .deps/sub1sp.Tpo -c -o sub1sp.lo
/home/seurer/gcc/git/gcc-test/mpfr/src/sub1sp.c
libtool: compile: /home/seurer/gcc/git/build/gcc-test/./prev-gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/./prev-gcc/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/bin/
-B/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/lib/
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/include
-isystem
/home/seurer/gcc/git/install/gcc-test/powerpc64-unknown-linux-gnu/sys-include
-fchecking=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1
-DHAVE_LOCALE_H=1 -DHAVE_WCHAR_H=1 -DHAVE_STDARG=1 -DHAVE_SYS_TIME_H=1
-DHAVE_STRUCT_LCONV_DECIMAL_POINT=1 -DHAVE_STRUCT_LCONV_THOUSANDS_SEP=1
-DHAVE_ALLOCA_H=1 -DHAVE_STDINT_H=1 -DHAVE_VA_COPY=1 -DHAVE_SETLOCALE=1
-DHAVE_GETTIMEOFDAY=1 -DHAVE_LONG_LONG=1 -DHAVE_INTMAX_T=1
-DMPFR_HAVE_INTMAX_MAX=1 -DMPFR_HAVE_FESETROUND=1 -DHAVE_DENORMS=1
-DHAVE_SIGNEDZ=1 -DHAVE_ROUND=1 -DHAVE_TRUNC=1 -DHAVE_FLOOR=1 -DHAVE_CEIL=1
-DHAVE_NEARBYINT=1 -DMPFR_USE_THREAD_SAFE=1 -DMPFR_USE_C11_THREAD_SAFE=1
-DHAVE_CLOCK_GETTIME=1 -DLT_OBJDIR=\".libs/\" -DHAVE_ATTRIBUTE_MODE=1
-DHAVE___GMPN_ROOTREM=1 -DHAVE___GMPN_SBPI1_DIVAPPR_Q=1 -I.
-I/home/seurer/gcc/git/gcc-test/mpfr/src
-I/home/seurer/gcc/git/build/gcc-test/gmp -DNO_ASM -g -O2 -fchecking=1 -MT
sub1sp.lo -MD -MP -MF .deps/sub1sp.Tpo -c
/home/seurer/gcc/git/gcc-test/mpfr/src/sub1sp.c -o sub1sp.o
during GIMPLE pass: pre
/home/seurer/gcc/git/gcc-test/mpfr/src/sub1sp.c: In function 'mpfr_sub1sp':
/home/seurer/gcc/git/gcc-test/mpfr/src/sub1sp.c:135:1: internal compiler error:
in clean, at tree-ssa-pre.c:2053
135 | mpfr_sub1sp (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t
rnd_mode)
| ^~~~~~~~~~~
0x3fffb7c87c6b generic_start_main
../csu/libc-start.c:266
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
@ 2020-11-12 7:17 ` rguenth at gcc dot gnu.org
2020-11-12 7:41 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-12 7:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Target Milestone|--- |11.0
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Last reconfirmed| |2020-11-12
Priority|P3 |P1
Status|UNCONFIRMED |ASSIGNED
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine - trying to reproduce on x86_64-linux with in-tree mpfr.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
2020-11-12 7:17 ` [Bug bootstrap/97806] " rguenth at gcc dot gnu.org
@ 2020-11-12 7:41 ` rguenth at gcc dot gnu.org
2020-11-12 7:42 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-12 7:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, confirmed and reducing a testcase.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
2020-11-12 7:17 ` [Bug bootstrap/97806] " rguenth at gcc dot gnu.org
2020-11-12 7:41 ` rguenth at gcc dot gnu.org
@ 2020-11-12 7:42 ` rguenth at gcc dot gnu.org
2020-11-12 8:00 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-12 7:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
int b;
long c;
int g();
void h(long *);
void i(long *);
void d() {
int e, f = b - e;
if (g())
h(&c + f);
else
i(&c + f);
__builtin_memset(0, 0, f * 8);
}
heh, quite simple - so much for test coverage :/
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
` (2 preceding siblings ...)
2020-11-12 7:42 ` rguenth at gcc dot gnu.org
@ 2020-11-12 8:00 ` rguenth at gcc dot gnu.org
2020-11-12 9:48 ` tnfchris at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-12 8:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, happens because topological sorting is not correct for the case where we
have multiple expressions for a value in the set.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
` (3 preceding siblings ...)
2020-11-12 8:00 ` rguenth at gcc dot gnu.org
@ 2020-11-12 9:48 ` tnfchris at gcc dot gnu.org
2020-11-12 10:01 ` cvs-commit at gcc dot gnu.org
2020-11-12 10:01 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: tnfchris at gcc dot gnu.org @ 2020-11-12 9:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
Tamar Christina <tnfchris at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tnfchris at gcc dot gnu.org
--- Comment #5 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
*** Bug 97809 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
` (4 preceding siblings ...)
2020-11-12 9:48 ` tnfchris at gcc dot gnu.org
@ 2020-11-12 10:01 ` cvs-commit at gcc dot gnu.org
2020-11-12 10:01 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-11-12 10:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:64326bb428ac750ec3b0f56c06dfb98277cd41b5
commit r11-4937-g64326bb428ac750ec3b0f56c06dfb98277cd41b5
Author: Richard Biener <rguenther@suse.de>
Date: Thu Nov 12 09:10:51 2020 +0100
tree-optimization/97806 - fix PRE expression post order
This fixes the postorder compute for the case of multiple
expression leaders for a value.
2020-11-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/97806
* tree-ssa-pre.c (pre_expr_DFS): New overload for visiting
values, visiting all leaders for a value. Use a bitmap
for visited values.
(sorted_array_from_bitmap_set): Walk over values and adjust.
* gcc.dg/pr97806.c: New testcase.
^ permalink raw reply [flat|nested] 8+ messages in thread* [Bug bootstrap/97806] [11 regression] bootstrap ICE starting with r11-4921
2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
` (5 preceding siblings ...)
2020-11-12 10:01 ` cvs-commit at gcc dot gnu.org
@ 2020-11-12 10:01 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-12 10:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97806
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2020-11-12 3:00 [Bug bootstrap/97806] New: [11 regression] bootstrap ICE starting with r11-4921 seurer at gcc dot gnu.org
2020-11-12 7:17 ` [Bug bootstrap/97806] " rguenth at gcc dot gnu.org
2020-11-12 7:41 ` rguenth at gcc dot gnu.org
2020-11-12 7:42 ` rguenth at gcc dot gnu.org
2020-11-12 8:00 ` rguenth at gcc dot gnu.org
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