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* [Bug middle-end/37107] Incorrect code generated after function inlining [not found] <bug-37107-4@http.gcc.gnu.org/bugzilla/> @ 2012-01-13 6:41 ` pinskia at gcc dot gnu.org 0 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2012-01-13 6:41 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution| |INVALID --- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-13 06:33:30 UTC --- No feedback in over 3 years so closing. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/37107] New: Incorrect code generated after function inlining
@ 2008-08-13 8:10 oakad at yahoo dot com
2008-08-16 22:15 ` [Bug middle-end/37107] " pinskia at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: oakad at yahoo dot com @ 2008-08-13 8:10 UTC (permalink / raw)
To: gcc-bugs
In the attached file (cfi_flash.c), the function flash_detect_cfi is inlined
into the function flash_get_size. flash_detect_cfi accepts (arg 2) a pointer to
structure defined on stack in flash_get_size. Upon completion, some fields from
the structure in question are referenced (lines 1731 - 1734).
The generated code for the function (flash_get_size.asm, lines 63-70) does none
of these, introducing a nasty runtime bug.
Build parameters:
powerpc-linux-gnuspe-gcc -g -Os -fPIC -ffixed-r14 -meabi -D__KERNEL__
-DTEXT_BASE=0xfffc0000 -I/root/u-boot-1.3.3/include -fno-builtin
-ffreestanding -nostdinc
-isystem /usr/local/powerpc/lib/gcc/powerpc-linux-gnuspe/4.3.1/include
-pipe -DCONFIG_PPC -D__powerpc__ -DCONFIG_MPC85xx -DCONFIG_E500 -ffixed-r2
-Wa,-me500 -msoft-float -mno-string -mno-spe -DCONFIG_E500=1
-DCONFIG_MPC85xx=1 -DCONFIG_MPC8548=1 -Wall -Wstrict-prototypes
-c -o cfi_flash.o cfi_flash.c
--
Summary: Incorrect code generated after function inlining
Product: gcc
Version: 4.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: oakad at yahoo dot com
GCC build triplet: x86_64-pc-linux-gnu
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: powerpc-linux-gnuspe
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug middle-end/37107] Incorrect code generated after function inlining 2008-08-13 8:10 [Bug c/37107] New: " oakad at yahoo dot com @ 2008-08-16 22:15 ` pinskia at gcc dot gnu dot org 2008-08-20 6:34 ` oakad at yahoo dot com ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-08-16 22:15 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from pinskia at gcc dot gnu dot org 2008-08-16 22:14 ------- Can you provide the preprocessed source which you can get via the -save-temps option. Also does using -fno-strict-aliasing fix the issue? -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/37107] Incorrect code generated after function inlining 2008-08-13 8:10 [Bug c/37107] New: " oakad at yahoo dot com 2008-08-16 22:15 ` [Bug middle-end/37107] " pinskia at gcc dot gnu dot org @ 2008-08-20 6:34 ` oakad at yahoo dot com 2008-08-20 6:35 ` oakad at yahoo dot com ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: oakad at yahoo dot com @ 2008-08-20 6:34 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from oakad at yahoo dot com 2008-08-20 06:32 ------- (In reply to comment #3) > Can you provide the preprocessed source which you can get via the -save-temps > option. Also does using -fno-strict-aliasing fix the issue? > -fno-strict-aliasing appears to have no effect on issue. Different optimization level (-O2) still generates problematic code. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/37107] Incorrect code generated after function inlining 2008-08-13 8:10 [Bug c/37107] New: " oakad at yahoo dot com 2008-08-16 22:15 ` [Bug middle-end/37107] " pinskia at gcc dot gnu dot org 2008-08-20 6:34 ` oakad at yahoo dot com @ 2008-08-20 6:35 ` oakad at yahoo dot com 2008-08-20 6:35 ` oakad at yahoo dot com 2008-12-27 6:23 ` pinskia at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: oakad at yahoo dot com @ 2008-08-20 6:35 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from oakad at yahoo dot com 2008-08-20 06:33 ------- Created an attachment (id=16103) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16103&action=view) Preprocessed cfi_flash.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/37107] Incorrect code generated after function inlining 2008-08-13 8:10 [Bug c/37107] New: " oakad at yahoo dot com ` (2 preceding siblings ...) 2008-08-20 6:35 ` oakad at yahoo dot com @ 2008-08-20 6:35 ` oakad at yahoo dot com 2008-12-27 6:23 ` pinskia at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: oakad at yahoo dot com @ 2008-08-20 6:35 UTC (permalink / raw) To: gcc-bugs ------- Comment #6 from oakad at yahoo dot com 2008-08-20 06:34 ------- Created an attachment (id=16104) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16104&action=view) Full assembler output of cfi_flash.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/37107] Incorrect code generated after function inlining 2008-08-13 8:10 [Bug c/37107] New: " oakad at yahoo dot com ` (3 preceding siblings ...) 2008-08-20 6:35 ` oakad at yahoo dot com @ 2008-12-27 6:23 ` pinskia at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu dot org @ 2008-12-27 6:23 UTC (permalink / raw) To: gcc-bugs ------- Comment #7 from pinskia at gcc dot gnu dot org 2008-12-27 06:22 ------- How about -fno-delete-null-pointer-checks -O2? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37107 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-01-13 6:41 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-37107-4@http.gcc.gnu.org/bugzilla/>
2012-01-13 6:41 ` [Bug middle-end/37107] Incorrect code generated after function inlining pinskia at gcc dot gnu.org
2008-08-13 8:10 [Bug c/37107] New: " oakad at yahoo dot com
2008-08-16 22:15 ` [Bug middle-end/37107] " pinskia at gcc dot gnu dot org
2008-08-20 6:34 ` oakad at yahoo dot com
2008-08-20 6:35 ` oakad at yahoo dot com
2008-08-20 6:35 ` oakad at yahoo dot com
2008-12-27 6:23 ` pinskia at gcc dot gnu dot org
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