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* [Bug middle-end/105409] New: ICE in simplify_subreg, at simplify-rtx.cc:7351
@ 2022-04-27 14:39 ro at gcc dot gnu.org
2022-04-27 14:40 ` [Bug middle-end/105409] " ro at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ro at gcc dot gnu.org @ 2022-04-27 14:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105409
Bug ID: 105409
Summary: ICE in simplify_subreg, at simplify-rtx.cc:7351
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: gaius at gcc dot gnu.org
Target Milestone: ---
Target: sparcv9-sun-solaris2.11
As (incorrectly) reported in PR modula2/105408, for a 64-bit-default
Solaris/SPARC
build of the devel/modula-2 branch, 2000+ 32-bit testcases FAIL like this:
FAIL: gm2/calling-c/datatypes/unbounded/run/pass/m.mod compilation, -O
(internal compiler error: ^[[m^[[Kin simplify_subreg, at simplify-rtx.cc:7351)
However, it turns out that this has nothing to do with gm2, because the same
ICE
occurs on trunk as well (but only for a 64-bit-default g++, 32-bit-default
compiles
the testcase just fine):
$ cc1plus -m32 -quiet m.x0-m_m2.cpp
m.x0-m_m2.cpp:111:1: internal compiler error: in simplify_subreg, at
simplify-rtx.cc:7351
111 | }
| ^
0x101360647 simplify_context::simplify_subreg(machine_mode, rtx_def*,
machine_mode, poly_int<1u, unsigned long>)
/vol/gcc/src/hg/master/local/gcc/simplify-rtx.cc:7351
0x1017e071b simplify_subreg(machine_mode, rtx_def*, machine_mode, poly_int<1u,
unsigned long>)
/vol/gcc/src/hg/master/local/gcc/rtl.h:3498
0x1017e071b assemble_integer(rtx_def*, unsigned int, unsigned int, int)
/vol/gcc/src/hg/master/local/gcc/varasm.cc:2922
0x100db88eb dw2_asm_output_encoded_addr_rtx(int, rtx_def*, bool, char const*,
...)
/vol/gcc/src/hg/master/local/gcc/dwarf2asm.cc:1122
0x100dc919f output_call_frame_info
/vol/gcc/src/hg/master/local/gcc/dwarf2out.cc:929
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/105409] ICE in simplify_subreg, at simplify-rtx.cc:7351
2022-04-27 14:39 [Bug middle-end/105409] New: ICE in simplify_subreg, at simplify-rtx.cc:7351 ro at gcc dot gnu.org
@ 2022-04-27 14:40 ` ro at gcc dot gnu.org
2022-05-05 8:24 ` ro at CeBiTec dot Uni-Bielefeld.DE
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: ro at gcc dot gnu.org @ 2022-04-27 14:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105409
--- Comment #1 from Rainer Orth <ro at gcc dot gnu.org> ---
Created attachment 52891
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52891&action=edit
testcase
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/105409] ICE in simplify_subreg, at simplify-rtx.cc:7351
2022-04-27 14:39 [Bug middle-end/105409] New: ICE in simplify_subreg, at simplify-rtx.cc:7351 ro at gcc dot gnu.org
2022-04-27 14:40 ` [Bug middle-end/105409] " ro at gcc dot gnu.org
@ 2022-05-05 8:24 ` ro at CeBiTec dot Uni-Bielefeld.DE
2022-05-05 13:59 ` ro at CeBiTec dot Uni-Bielefeld.DE
2022-05-05 16:27 ` gaius at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ro at CeBiTec dot Uni-Bielefeld.DE @ 2022-05-05 8:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105409
--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> $ cc1plus -m32 -quiet m.x0-m_m2.cpp
> m.x0-m_m2.cpp:111:1: internal compiler error: in simplify_subreg, at
> simplify-rtx.cc:7351
> 111 | }
> | ^
If one compiles the testcase with a sparcv9-sun-solaris2.11 g++, it
works just fine. However, the cc1plus invocation is different:
cc1plus -mptr32 -mno-stack-bias -quiet -m32 -mcpu=v9 m.x0-m_m2.cpp
Omitting the -mptr32 lets the ICE resurface.
It seems gm2 omits CC1_SPEC from the cc1/cc1plus invocation in
gcc/m2/m2-link-support.h.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/105409] ICE in simplify_subreg, at simplify-rtx.cc:7351
2022-04-27 14:39 [Bug middle-end/105409] New: ICE in simplify_subreg, at simplify-rtx.cc:7351 ro at gcc dot gnu.org
2022-04-27 14:40 ` [Bug middle-end/105409] " ro at gcc dot gnu.org
2022-05-05 8:24 ` ro at CeBiTec dot Uni-Bielefeld.DE
@ 2022-05-05 13:59 ` ro at CeBiTec dot Uni-Bielefeld.DE
2022-05-05 16:27 ` gaius at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ro at CeBiTec dot Uni-Bielefeld.DE @ 2022-05-05 13:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105409
--- Comment #3 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> It seems gm2 omits CC1_SPEC from the cc1/cc1plus invocation in
> gcc/m2/m2-link-support.h.
Indeed: the following trivial patch works wonders indeed:
diff --git a/gcc/m2/m2-link-support.h b/gcc/m2/m2-link-support.h
--- a/gcc/m2/m2-link-support.h
+++ b/gcc/m2/m2-link-support.h
@@ -52,7 +52,7 @@ along with GCC; see the file COPYING3.
compiler. */
#define GM2CC(INPUT,OUTPUT) \
- "%{!fno-exceptions:cc1plus;:cc1} " GM2CC_OPTIONS " " INPUT " \
+ "%{!fno-exceptions:cc1plus;:cc1} %1 " GM2CC_OPTIONS " " INPUT " \
-o %d" SCAFFOLDNAME ".s \n\
" AS(SCAFFOLDNAME ".s",OUTPUT) " "
With it, I get the following test results on sparcv9-sun-solaris2.11:
=== gm2 Summary for unix ===
# of expected passes 11721
# of unexpected failures 7
# of unresolved testcases 1
=== gm2 Summary for unix/-m32 ===
# of expected passes 11706
# of unexpected failures 22
# of unresolved testcases 1
=== gm2 Summary ===
# of expected passes 23427
# of unexpected failures 29
# of unresolved testcases 2
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/105409] ICE in simplify_subreg, at simplify-rtx.cc:7351
2022-04-27 14:39 [Bug middle-end/105409] New: ICE in simplify_subreg, at simplify-rtx.cc:7351 ro at gcc dot gnu.org
` (2 preceding siblings ...)
2022-05-05 13:59 ` ro at CeBiTec dot Uni-Bielefeld.DE
@ 2022-05-05 16:27 ` gaius at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: gaius at gcc dot gnu.org @ 2022-05-05 16:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105409
Gaius Mulley <gaius at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #4 from Gaius Mulley <gaius at gcc dot gnu.org> ---
Many thanks for the patch, diagnosis and test - I've applied the patch on the
modula2 branch.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-05-05 16:27 UTC | newest]
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2022-04-27 14:39 [Bug middle-end/105409] New: ICE in simplify_subreg, at simplify-rtx.cc:7351 ro at gcc dot gnu.org
2022-04-27 14:40 ` [Bug middle-end/105409] " ro at gcc dot gnu.org
2022-05-05 8:24 ` ro at CeBiTec dot Uni-Bielefeld.DE
2022-05-05 13:59 ` ro at CeBiTec dot Uni-Bielefeld.DE
2022-05-05 16:27 ` gaius at gcc dot gnu.org
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