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* [Bug target/42419] New: ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7
@ 2009-12-18 0:14 janis at gcc dot gnu dot org
2009-12-18 0:15 ` [Bug target/42419] " janis at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: janis at gcc dot gnu dot org @ 2009-12-18 0:14 UTC (permalink / raw)
To: gcc-bugs
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GCC trunk gets a ICE when building SPEC CPU2000 test 254.gap with "-m64 -O2
-mcpu=power7 -mno-altivec -ftree-vectorize", as demonstrated by a rather large
minimized testcase that I'll attach to this PR.
elm3b149% /home/janis/tools/gcc-trunk-anonsvn/bin/gcc -c -m64 -O2 -mcpu=power7
-mno-altivec -ftree-vectorize bug.c
bug.c: In function SyFgets:
bug.c:124:1: error: insn does not satisfy its constraints:
(insn 787 422 425 43 bug.c:87 (set (reg:TI 11 11)
(const_double 2314885530818453536 [0x2020202020202020]
2314885530818453536 [0x2020202020202020] 0 [0x0])) 375 {*movti_ppc64} (nil))
bug.c:124:1: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
POWER7 support is new in GCC 4.5 so this is not a regression from earlier
releases.
--
Summary: ICE in reload_cse_simplify_operands for 254.gap with -
mcpu=power7
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: poewrpc64-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42419
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/42419] ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7
2009-12-18 0:14 [Bug target/42419] New: ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7 janis at gcc dot gnu dot org
@ 2009-12-18 0:15 ` janis at gcc dot gnu dot org
2009-12-22 8:51 ` eres at il dot ibm dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: janis at gcc dot gnu dot org @ 2009-12-18 0:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from janis at gcc dot gnu dot org 2009-12-18 00:15 -------
Created an attachment (id=19341)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19341&action=view)
Minimized testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42419
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/42419] ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7
2009-12-18 0:14 [Bug target/42419] New: ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7 janis at gcc dot gnu dot org
2009-12-18 0:15 ` [Bug target/42419] " janis at gcc dot gnu dot org
@ 2009-12-22 8:51 ` eres at il dot ibm dot com
2009-12-22 18:52 ` janis at gcc dot gnu dot org
2010-01-08 18:02 ` janis at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: eres at il dot ibm dot com @ 2009-12-22 8:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from eres at il dot ibm dot com 2009-12-22 08:51 -------
(In reply to comment #0)
> GCC trunk gets a ICE when building SPEC CPU2000 test 254.gap with "-m64 -O2
> -mcpu=power7 -mno-altivec -ftree-vectorize", as demonstrated by a rather large
> minimized testcase that I'll attach to this PR.
-mno-altivec -mvsx should not be allowed as a compiler option.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42419
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/42419] ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7
2009-12-18 0:14 [Bug target/42419] New: ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7 janis at gcc dot gnu dot org
2009-12-18 0:15 ` [Bug target/42419] " janis at gcc dot gnu dot org
2009-12-22 8:51 ` eres at il dot ibm dot com
@ 2009-12-22 18:52 ` janis at gcc dot gnu dot org
2010-01-08 18:02 ` janis at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: janis at gcc dot gnu dot org @ 2009-12-22 18:52 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from janis at gcc dot gnu dot org 2009-12-22 18:51 -------
The bug (which I didn't know from the documentation) is that -mvsx -mno-altivec
is not a valid combination but is not reported as an error. Instead the
compiler accepts it and then generates invalid code.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42419
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/42419] ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7
2009-12-18 0:14 [Bug target/42419] New: ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7 janis at gcc dot gnu dot org
` (2 preceding siblings ...)
2009-12-22 18:52 ` janis at gcc dot gnu dot org
@ 2010-01-08 18:02 ` janis at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: janis at gcc dot gnu dot org @ 2010-01-08 18:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from janis at gcc dot gnu dot org 2010-01-08 18:02 -------
*** This bug has been marked as a duplicate of 42416 ***
--
janis at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42419
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-01-08 18:02 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2009-12-18 0:14 [Bug target/42419] New: ICE in reload_cse_simplify_operands for 254.gap with -mcpu=power7 janis at gcc dot gnu dot org
2009-12-18 0:15 ` [Bug target/42419] " janis at gcc dot gnu dot org
2009-12-22 8:51 ` eres at il dot ibm dot com
2009-12-22 18:52 ` janis at gcc dot gnu dot org
2010-01-08 18:02 ` janis at gcc dot gnu dot org
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