Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86656
Bug 86656 depends on bug 99624, which changed state.
Bug 99624 Summary: Address sanitizer detects heap-buffer-overflow in namet.adb
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99624
What|Removed |Added
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99624
Vittorio Zecca changed:
What|Removed |Added
Status|SUSPENDED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99624
--- Comment #8 from Vittorio Zecca ---
Address sanitizer of Version 11.0.1 current trunk miscompiles the Ada
compiler, maybe a previous version would work.
Undefined behavior sanitizer works.
I am now trying to build the Ada compiler with gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99624
--- Comment #6 from Vittorio Zecca ---
It is not that easy, unfortunately.
If I compile the build with -gnata, thereby arming the pragma assert,
the build fails.
So I had to build without -gnata.
Now trying to build Ada with gcc 9.1.0
Earlier
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99624
--- Comment #4 from Vittorio Zecca ---
I added
pragma Assert (Id in Name_Entries.Table'Range);
at namet.adb:156, but then I get at compile time
namet.adb:156:25: warning: condition can only be False if invalid values
present
and the build
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99624
--- Comment #2 from Vittorio Zecca ---
Yes, probably gcc -fsanitize=address is miscompiling the Ada compiler.
I had to take out the -gnata option to disable pragma assert that was failing.
So I do not know if this is a genuine compiler bug or
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99623
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #3
Priority: P3
Component: ada
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
While building the ada compiler the address sanitizer detecst an
heap-buffer-overflow in namet.adb line 157:
Index : constant Int
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49278
--- Comment #30 from Vittorio Zecca ---
On the following source code I still have the ICE:
type t
integer g
end type
type(t) :: u=t(1)
data u%g /2/ ! should emit diagnostic here
end
gfortran -S gfbug63.f
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
// From test case sizes.cc
// must be compiled and executed
// /home/vitti/gcc-150221-full-address/./gcc/xg++
-B/home/vitti/gcc
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Needs option -O2
-- /home/vitti/gcc-150221-full-undefined/gcc/xgcc -S
-B/home/vitti/gcc-150221-full-undefined/gcc/
-I/home
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82721
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79524
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #9
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99337
--- Comment #4 from Vittorio Zecca ---
(In reply to Iain Buclaw from comment #3)
> Fix is trivial
>
> --- a/gcc/d/dmd/dmodule.c
> +++ b/gcc/d/dmd/dmodule.c
> @@ -195,7 +195,7 @@ static void checkModFileAlias(OutBuffer *buf, OutBuffer
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52622
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99337
--- Comment #1 from Vittorio Zecca ---
This issue was found with the address sanitizer, while issues in bug
63426 were found with the undefined behavior sanitizer.
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
Reporter: zeccav at gmail dot com
Target Milestone: ---
The address sanitizer detects the following running
/home/vitti/gcc-150221-full-address/gcc/gdc
-B/home/vitti/gcc-150221-full-address/gcc compilable
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50551
--- Comment #3 from Vittorio Zecca ---
Still in trunk.
The NAG nagfor and Intel ifort compilers detect the issue.
gfortran -S gfbug89.f
[vitti f95]$nagfor -S -w gfbug89.f
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug89.f,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81319
Vittorio Zecca changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80774
--- Comment #6 from Vittorio Zecca ---
Still in current trunk.
gfortran -S gfbug132.f -fcoarray=single
gfbug132.f:18:72:
18 | deallocate(obj%link)
|
1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85789
--- Comment #2 from Vittorio Zecca ---
Still in trunk:
~/local/gcc-150221-undefined/bin/gcc -S gccerr67.c -O
../../gcc-150221/gcc/cse.c:2204:34: runtime error: signed integer overflow: 1 -
-9223372036854775807 cannot be represented in type
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50541
--- Comment #7 from Vittorio Zecca ---
The NAG nagfor and Intel ifort detect the issue.
gfortran -S gfbug81.f
[vitti f95]$nagfor -S gfbug81.f
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug81.f, line 4: Multiply defined
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58224
--- Comment #3 from Vittorio Zecca ---
Still in trunk.
The NAG nagfor compiler detects the issue at compile time.
nagfor gfbug103.f
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Warning: gfbug103.f, line 8: Pointer Q never
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82083
Vittorio Zecca changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50525
--- Comment #6 from Vittorio Zecca ---
Still in trunk.
The NAG nagfor and Intel ifort compilers detect the issue.
ifort -S -w gfbug72.f
gfbug72.f(4): error #6482: An ENTRY dummy argument is referenced in an
executable statement before it
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67486
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
Bug 63426 depends on bug 62058, which changed state.
Bug 62058 Summary: Undefined behaviour in tree-data-ref.c with options -O1
-ftree-loop-vectorize
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62058
What|Removed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62058
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81986
Vittorio Zecca changed:
What|Removed |Added
Component|sanitizer |libfortran
--- Comment #4 from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50402
--- Comment #9 from Vittorio Zecca ---
Still in current trunk.
The compilers NAG nagfor and Intel ifort correctly detect a syntax error.
nagfor -S -w gfbug43.f
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug43.f, line 12:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50538
--- Comment #4 from Vittorio Zecca ---
Still present in current trunk.
The compilers NAG nagfor and Intel ifort detect the issue.
nagfor -S -w gfbug78.f
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug78.f, line 4: Dummy
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50542
--- Comment #4 from Vittorio Zecca ---
Still present in version 11.
The compilers NAG nagfor and Intel ifort detect the issue.
ifort -S -w gfbug82.f -warn stderrors
gfbug82.f(9): error #8252: A DATA implied-DO variable must be an array element
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50536
--- Comment #9 from Vittorio Zecca ---
Still present in version 11.
Detected by NAG nagfor and Intel ifort.
[vitti f95]$nagfor -S -w gfbug74.f
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug74.f, line 4: Input item L cannot
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67379
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50377
--- Comment #4 from Vittorio Zecca ---
Still present at version 11.
The Intel ifort and NAG nagfor compilers decet the issue.
nagfor -S gfbug158.f -w
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug158.f, line 3: External
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50535
--- Comment #2 from Vittorio Zecca ---
Still in version 11.
Both Intel ifort and NAG nagfor detect the issue.
ifort -S gfbug73.f -w
gfbug73.f(5): error #6736: This transformational intrinsic function is invalid
in this context; statement
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44798
Vittorio Zecca changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50549
--- Comment #2 from Vittorio Zecca ---
Still present on version 11.
NAG nagfor compiler detecs it.
nagfor -S gfbug87.f -w
NAG Fortran Compiler Release 7.0(Yurakucho) Build 7042
Error: gfbug87.f, line 13: Wrong character length (1 instead of 2)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44922
Vittorio Zecca changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99255
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99236
--- Comment #2 from Vittorio Zecca ---
After patching libgcc2.c the test case runs fine without sanitizer messages.
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! must be compiled and run
! It does not need sanitized compiler, but
! must be loaded with sanitized version of libgcc_s.so.1
! ldd a.out -> libgcc_s.so.1 =>
/home/vitti/local/gcc-
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99190
--- Comment #8 from Vittorio Zecca ---
I can confirm the new libubsan works on my test case.
Keep up the good work!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99202
--- Comment #2 from Vittorio Zecca ---
I believe you need LD_PRELOAD if the object program uses the address sanitizer.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44792
--- Comment #3 from Vittorio Zecca ---
Still unmodified, I cannot see the modification of Tobias Burnus.
NAG nagfor compiler stll produces run time error message.
Runtime Error: gcc/testsuite/gfortran.fortran-torture/execute/data.f90, line
28:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99190
--- Comment #5 from Vittorio Zecca ---
Sorry I meant libubsan, but I am building the whole gcc, g++, and gfortran
sanitized version.
: normal
Priority: P3
Component: libquadmath
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! from fmt_en.f90
! must be compiled and run
! gfortran compiler needs not be sanitized
! must load sanitized
Severity: normal
Priority: P3
Component: libquadmath
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! from dec_math.f90
! must be compiled and run
! gfortran compiler needs not be sanitized
! must load sanitized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99190
--- Comment #4 from Vittorio Zecca ---
To generate a sanitized version of libgfortran I built whole sanitized
gcc with the following command:
CFLAGS="-g -O0 -fsanitize=undefined -lubsan" LIBS="-lubsan"
CXXFLAGS=$CFLAGS ../gcc-150221/configure
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! from pr66311.f90
! must be compiled and run with sanitized libgfortran
!../../../gcc-150221/libgfortran/io/write.c:835:7: runtime error: negation
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot gnu.org
Target Milestone: ---
// gcc -fsanitize
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67516
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|ASSIGNED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67485
Vittorio Zecca changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61158
Vittorio Zecca changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59065
--- Comment #10 from Vittorio Zecca ---
This issue seems to have been resolved in the trunk gfortran 11.0.0
gfortran gfbug109.f -fcheck=pointer -g
[vitti f95]$./a.out
At line 9 of file gfbug109.f
Fortran runtime error: Allocatable argument
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99148
--- Comment #1 from Vittorio Zecca ---
Reproduction of this issue requires an address sanitized version of
libgfortran.
I narrowed the issue to unpack0_char changing
{
gfc_array_char tmp;
if (unlikely(compile_options.bounds_check))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99145
--- Comment #4 from Vittorio Zecca ---
(In reply to Jerry DeLisle from comment #3)
> Initially it is creating the very large string in the frontend passes and
> then via resolution and translation phases, and finally into the middle-end
> and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99147
--- Comment #5 from Vittorio Zecca ---
I ran the testsuite against the proposed fix and it was successful, no
sanitizer errors in symbol.c.
Only remaining error as in bug 99148.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99147
--- Comment #3 from Vittorio Zecca ---
I changed symbol.c as per your suggestion and now the address
sanitized gfortran compiles fine.
Now I am going to check it against the testsuite.
Results tomorow.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99145
--- Comment #2 from Vittorio Zecca ---
I am sorry I should have taken more time analyzing this issue.
Actually it is not and infinite loop, I clocked the compilation first
with the -S option,
then with the -c option.
The compiler takes 4'52" of
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! from char_length_8.f90
! address sanitizer detects stack-buffer-overflow in libgfortran
! Must compile libgfortran with -fsanitize
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! trunk 150221 gfortran -fdec
! ERROR: AddressSanitizer: heap-use-after-free
! READ of size 1 at 0x61301f18 thread T0
!#0 0xe1a258
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! gfortran trunk 150221 ICE SIGSEGV
MODULE p
TYPE :: person
sequence
END TYPE person
INTERFACE READ(UNFORMATTED)
MODULE PROCEDURE pruf
END
: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Loop compiling the following code:
! gfortran LOOP?
character (len=2_8**32_8+4_8), parameter :: s = ""
end
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85851
--- Comment #7 from Vittorio Zecca ---
Fixed in trung February 15th, 2021.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50550
--- Comment #9 from Vittorio Zecca ---
Intel ifort and ifx accept the test case without errors.
They both accept
pointer pi
integer :: pi=>null()
and
integer :: pi=>null()
pointer pi
Anyway, it's easy to transfom it into
integer, pointer
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50392
--- Comment #23 from Vittorio Zecca ---
The update proposed in comment #18 fixed the issue.
Thank you!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77273
Vittorio Zecca changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61900
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57933
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44791
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50551
--- Comment #2 from Vittorio Zecca ---
Still present at 10.1.1-1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50410
Vittorio Zecca changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=33056
Bug 33056 depends on bug 50410, which changed state.
Bug 50410 Summary: [8/9/10/11 Regression] ICE in record_reference, pointer
variable in data statement
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50410
What|Removed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50410
--- Comment #37 from Vittorio Zecca ---
Fixed in 10.1.1.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79636
--- Comment #9 from Vittorio Zecca ---
This issue has been fixed long ago.
It should be closed.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81319
--- Comment #3 from Vittorio Zecca ---
This issue has been fixed in gcc 10.1.1-1.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68045
--- Comment #3 from Vittorio Zecca ---
On my test case the ICE disappeared and I am now having:
gfortran -S gfbug111.f
gfbug111.f:13:6:
13 | function abc_interface(this)
| 1
Error: ABSTRACT INTERFACE ‘abc_interface’ at (1)
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Created attachment 46670
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46670=edit
Test case from chrom
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89504
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90242
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85164
--- Comment #16 from Vittorio Zecca ---
On Saturday afternoon I had a power failure that probably damaged my disk,
so I cannot help you now.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85164
--- Comment #12 from Vittorio Zecca ---
Here are two more test cases with undefined behaviour in poly-int.h
Must be compiled with nonzero optimization
cat gccerr73.c
// must be compiled with nonzero optimization
//
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85164
--- Comment #11 from Vittorio Zecca ---
After applying your fixes I still have overflow compiling the following
// Must be compiled with nonzero optimization
//../../gcc/gcc/poly-int.h:1095:5: runtime error: signed integer
overflow:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85789
--- Comment #1 from Vittorio Zecca ---
I confirm it is still in trunk 270309, must be compiled with
nonzero optimization
~/local/gcc-270309-undefined/bin/gcc -S -O gccerr67.c
../../gcc/gcc/cse.c:2215:34: runtime error: signed integer overflow:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87042
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85164
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87703
Vittorio Zecca changed:
What|Removed |Added
CC||zeccav at gmail dot com
--- Comment #1
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
! Intrinsic acosh violates 2008 Standard rule 13.7.5 line 5
! "If the result is complex the imaginary part is expressed in radians and
: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Host: x86_64-pc-linux-gnu
! trunk 260152 ICE in gfc_conv_structure Segmentation fault at
trans-expr.c:7810
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80657
--- Comment #10 from Vittorio Zecca ---
Just applied the fix: gfortran delivers an error message and exits. In
10 milliseconds!
Thank you for fixing this one.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85814
--- Comment #5 from Vittorio Zecca ---
I confirm I get the ICE on trunk 260152 and on a sanitized version I also get
../../gcc/gcc/tree-ssa-strlen.c:721:11: runtime error: member access
within null pointer of type 'struct strinfo'
Thank you
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Created attachment 44141
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44141=edit
Preprocesse
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Host: x86_64-pc-linux-gnu
// Signed integer overflow in sanitized version of gcc trunk 260152
// Taken from testcase pr82596.c
// Must
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85253
--- Comment #8 from Vittorio Zecca ---
Compiling and running under both 8.0.1 and 8.1.0
with MALLOC_CHECK_=1 (see man mallopt)
I get the following (notice "free(): invalid pointer" from mallopt)
/usr/bin/gfortran -g -O0 gfbug144.f
[vitti
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Host: x86_64-pc-linux-gnu
! Runtime error message on good Fortran
! gfortran -O -g -fcheck=bounds
! must be compiled
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Host: x86_64-pc-linux-gnu
! incorrect output with optimization /= 0
! on trunk 259205
real efg_pw(2,2)
efg_pw(1,1)=1
efg_pw(2,1)=2
efg_pw(1,2)=3
efg_pw(2,2)=4
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: zeccav at gmail dot com
Target Milestone: ---
Testsuite program allocate_deferred_char_scalar_1.f03 at lines 68 and 69
dereferences pointer str4 which was nullified at line 66.
Same
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85253
--- Comment #7 from Vittorio Zecca ---
You are welcome, very fast fix, keep up the good work!
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