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* [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled
@ 2015-08-15 13:52 schwab@linux-m68k.org
2015-08-17 7:27 ` [Bug tree-optimization/67227] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: schwab@linux-m68k.org @ 2015-08-15 13:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227
Bug ID: 67227
Summary: [6 regression] stage2 ada compiler miscompiled
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: schwab@linux-m68k.org
CC: aoliva at gcc dot gnu.org
Blocks: 64164, 66978, 66983, 67000, 67034, 67035
Target Milestone: ---
Target: ia64-*-*
r226901 is causing the stage2 ada compiler to be miscompiled on ia64.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64164
[Bug 64164] [4.9/5/6 Regression] one more stack slot used due to one less
inlining level
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66978
[Bug 66978] [6 Regression] bootstrap failure with
--with-multilib-list=m32,m64,mx32
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66983
[Bug 66983] [6 Regression] Many testsuite regressions
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67000
[Bug 67000] [6 Regression] ICE in split_complex_args, at function.c:2325 on
ppc64le
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67034
[Bug 67034] [6 Regression] FAIL: gcc.c-torture/compile/pr39928-1.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67035
[Bug 67035] [6 Regression] FAIL: gcc.c-torture/compile/pr54713-3.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/67227] [6 regression] stage2 ada compiler miscompiled
2015-08-15 13:52 [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled schwab@linux-m68k.org
@ 2015-08-17 7:27 ` rguenth at gcc dot gnu.org
2015-08-19 14:43 ` [Bug tree-optimization/67227] [6 regression] comparison failure in ada/par.o schwab@linux-m68k.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-08-17 7:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |6.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/67227] [6 regression] comparison failure in ada/par.o
2015-08-15 13:52 [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled schwab@linux-m68k.org
2015-08-17 7:27 ` [Bug tree-optimization/67227] " rguenth at gcc dot gnu.org
@ 2015-08-19 14:43 ` schwab@linux-m68k.org
2015-08-21 8:31 ` [Bug rtl-optimization/67227] " aoliva at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: schwab@linux-m68k.org @ 2015-08-19 14:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[6 regression] stage2 ada |[6 regression] comparison
|compiler miscompiled |failure in ada/par.o
--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
It is only a comparison failure due to scheduling differences.
--- x1 2015-08-19 15:26:41.000000000 +0200
+++ x2 2015-08-19 15:26:46.000000000 +0200
@@ -1,5 +1,5 @@
-stage2-gcc/ada/par.o: file format elf64-ia64-little
+stage3-gcc/ada/par.o: file format elf64-ia64-little
Disassembly of section .text:
@@ -29467,25 +29467,25 @@
214b2: PCREL21B atree__new_node
214b6: 00 00 00 02 00 00 nop.i 0x0
214bc: 08 00 00 50 br.call.sptk.many b0=214b0
<par__ch6__p_formal_part.2186+0xa30>
- 214c0: 08 78 e0 01 80 24 [MMI] mov r15=16504
- 214c6: e0 80 03 00 49 20 mov r14=16496
- 214cc: 00 06 04 92 mov r1=16608
- 214d0: 0a 80 23 00 08 20 [MMI] addp4 r112=r8,r0;;
- 214d6: f0 78 30 00 40 c0 add r15=r15,r12
- 214dc: e1 60 00 80 add r14=r14,r12
- 214e0: 0a 08 04 18 00 20 [MMI] add r1=r1,r12;;
- 214e6: f0 00 3c 20 20 00 ld4 r15=[r15]
- 214ec: 00 00 04 00 nop.i 0x0
+ 214c0: 08 70 c0 01 80 24 [MMI] mov r14=16496
+ 214c6: 00 00 00 02 00 e0 nop.m 0x0
+ 214cc: 81 07 00 92 mov r15=16504
+ 214d0: 09 08 80 01 81 24 [MMI] mov r1=16608
+ 214d6: 00 00 00 02 00 00 nop.m 0x0
+ 214dc: 8e 00 20 80 addp4 r112=r8,r0;;
+ 214e0: 09 70 38 18 00 20 [MMI] add r14=r14,r12
+ 214e6: f0 78 30 00 40 20 add r15=r15,r12
+ 214ec: 10 60 00 80 add r1=r1,r12;;
214f0: 09 00 20 1c 90 11 [MMI] st4 [r14]=r8
214f6: 10 00 04 30 20 00 ld8 r1=[r1]
214fc: 00 00 04 00 nop.i 0x0;;
- 21500: 01 00 00 00 01 00 [MII] nop.m 0x0
- 21506: e0 00 3c 2c 00 e0 sxt4 r14=r15
- 2150c: 01 61 00 84 adds r15=16,r12;;
- 21510: 0b 70 38 00 11 20 [MMI] shladd r14=r14,2,r0;;
- 21516: e0 78 38 00 40 00 add r14=r15,r14
+ 21500: 02 78 00 1e 10 10 [MII] ld4 r15=[r15]
+ 21506: 00 00 00 02 00 c0 nop.i 0x0;;
+ 2150c: 01 78 58 00 sxt4 r14=r15
+ 21510: 0b 78 40 18 00 21 [MMI] adds r15=16,r12;;
+ 21516: e0 70 00 22 40 00 shladd r14=r14,2,r0
2151c: 00 00 04 00 nop.i 0x0;;
- 21520: 09 00 00 00 01 00 [MMI] nop.m 0x0
+ 21520: 0b 70 3c 1c 00 20 [MMI] add r14=r15,r14;;
21526: e0 e0 3b 7e 46 00 adds r14=-4,r14
2152c: 00 00 04 00 nop.i 0x0;;
21530: 10 88 03 1c 10 10 [MIB] ld4 r113=[r14]
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/67227] [6 regression] comparison failure in ada/par.o
2015-08-15 13:52 [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled schwab@linux-m68k.org
2015-08-17 7:27 ` [Bug tree-optimization/67227] " rguenth at gcc dot gnu.org
2015-08-19 14:43 ` [Bug tree-optimization/67227] [6 regression] comparison failure in ada/par.o schwab@linux-m68k.org
@ 2015-08-21 8:31 ` aoliva at gcc dot gnu.org
2015-08-21 20:03 ` aoliva at gcc dot gnu.org
2015-08-21 20:05 ` aoliva at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: aoliva at gcc dot gnu.org @ 2015-08-21 8:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227
Alexandre Oliva <aoliva at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-08-21
Component|tree-optimization |rtl-optimization
Assignee|unassigned at gcc dot gnu.org |aoliva at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Mine. Patch posted at https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01275.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/67227] [6 regression] comparison failure in ada/par.o
2015-08-15 13:52 [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled schwab@linux-m68k.org
` (2 preceding siblings ...)
2015-08-21 8:31 ` [Bug rtl-optimization/67227] " aoliva at gcc dot gnu.org
@ 2015-08-21 20:03 ` aoliva at gcc dot gnu.org
2015-08-21 20:05 ` aoliva at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: aoliva at gcc dot gnu.org @ 2015-08-21 20:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227
--- Comment #3 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Author: aoliva
Date: Fri Aug 21 20:03:14 2015
New Revision: 227085
URL: https://gcc.gnu.org/viewcvs?rev=227085&root=gcc&view=rev
Log:
fix sched compare regression
for gcc/ChangeLog
PR rtl-optimization/64164
PR rtl-optimization/67227
* alias.c (memrefs_conflict_p): Handle VALUEs in PLUS better.
(nonoverlapping_memrefs_p): Test offsets and sizes when given
identical gimple_reg exprs.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/alias.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/67227] [6 regression] comparison failure in ada/par.o
2015-08-15 13:52 [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled schwab@linux-m68k.org
` (3 preceding siblings ...)
2015-08-21 20:03 ` aoliva at gcc dot gnu.org
@ 2015-08-21 20:05 ` aoliva at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: aoliva at gcc dot gnu.org @ 2015-08-21 20:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227
Alexandre Oliva <aoliva at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Fixed
^ permalink raw reply [flat|nested] 6+ messages in thread
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2015-08-15 13:52 [Bug tree-optimization/67227] New: [6 regression] stage2 ada compiler miscompiled schwab@linux-m68k.org
2015-08-17 7:27 ` [Bug tree-optimization/67227] " rguenth at gcc dot gnu.org
2015-08-19 14:43 ` [Bug tree-optimization/67227] [6 regression] comparison failure in ada/par.o schwab@linux-m68k.org
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