Bug 65568

Summary:	ptrmem8.C:9:9: internal compiler error: in build_ptrmemfunc, at cp/typeck.c:7940
Product:	gcc	Reporter:	Rainer Emrich <rainer>
Component:	target	Assignee:	Not yet assigned to anyone <unassigned>
Status:	NEW ---
Severity:	normal	CC:	ktietz, nightstrike, vladimir.kokovic
Priority:	P3	Keywords:	ice-on-valid-code
Version:	5.0
Target Milestone:	---
See Also:	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86825 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83756 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65573
Host:	x86_64-w64-mingw32	Target:	x86_64-w64-mingw32
Build:	x86_64-w64-mingw32	Known to work:
Known to fail:		Last reconfirmed:	2015-03-26 00:00:00

Description Rainer Emrich 2015-03-25 18:28:45 UTC

Running the g++ testsuite I get the following ICE:

Executing on host: /opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/gcc/testsuite/g++/../../xg++ -B/opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/gcc/testsuite/g++/../../ /opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/testsuite/g++.dg/other/ptrmem8.C  -fno-diagnostics-show-caret -fdiagnostics-color=never  -nostdinc++ -I/opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/x86_64-w64-mingw32/libstdc++-v3/include/x86_64-w64-mingw32 -I/opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/x86_64-w64-mingw32/libstdc++-v3/include -I/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/libstdc++-v3/libsupc++ -I/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/libstdc++-v3/include/backward -I/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/libstdc++-v3/testsuite/util -fmessage-length=0  -std=c++98  -pedantic-errors -Wno-long-long  -S   -o ptrmem8.s    (timeout = 300)
spawn /opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/gcc/testsuite/g++/../../xg++ -B/opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/gcc/testsuite/g++/../../ /opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/testsuite/g++.dg/other/ptrmem8.C -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++ -I/opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/x86_64-w64-mingw32/libstdc++-v3/include/x86_64-w64-mingw32 -I/opt/devel/SCRATCH/tmp.5jnZ8G4weh/gcc-5.0.0/gcc-5.0.0/x86_64-w64-mingw32/libstdc++-v3/include -I/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/libstdc++-v3/libsupc++ -I/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/libstdc++-v3/include/backward -I/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/libstdc++-v3/testsuite/util -fmessage-length=0 -std=c++98 -pedantic-errors -Wno-long-long -S -o ptrmem8.s
D:/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/testsuite/g++.dg/other/ptrmem8.C: In function 'void foo(void (A::*)())':
D:/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/testsuite/g++.dg/other/ptrmem8.C:9:9: internal compiler error: in build_ptrmemfunc, at cp/typeck.c:7940
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
compiler exited with status 1
output is:
D:/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/testsuite/g++.dg/other/ptrmem8.C: In function 'void foo(void (A::*)())':
D:/opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/testsuite/g++.dg/other/ptrmem8.C:9:9: internal compiler error: in build_ptrmemfunc, at cp/typeck.c:7940
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

FAIL: g++.dg/other/ptrmem8.C  -std=c++98 (internal compiler error)

Comment 1 Richard Biener 2015-03-26 10:56:10 UTC

Can you run manually and provide a backtrace?

Comment 2 Kai Tietz 2015-03-26 11:12:06 UTC

Issue is related to -fms-extensions.  This option is for mingw targets on by default.  By the following patch issue in testsuite gets solved (it makes sense to apply this patch for such testcases, as here indeed -fno-ms-extensions is tested).  
The point - as already noticed and spoken with Jason - that some C++-extensions are buggy in C++-FE.

Index: ptrmem8.C
===================================================================
--- ptrmem8.C   (Revision 221690)
+++ ptrmem8.C   (Arbeitskopie)
@@ -1,5 +1,6 @@
 // PR c++/33844
 // { dg-do compile }
+// { dg-additional-options "-fno-ms-extensions" { target *-*-mingw* } }

 struct A {};

Comment 3 Andrew Pinski 2021-07-29 19:35:03 UTC

*** Bug 97825 has been marked as a duplicate of this bug. ***

Comment 4 Andrew Pinski 2022-12-24 20:32:42 UTC

*** Bug 108207 has been marked as a duplicate of this bug. ***