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* [Bug debug/32444] New: missing debug information for structure components @ 2007-06-21 0:51 geoffk at gcc dot gnu dot org 2007-06-21 1:08 ` [Bug debug/32444] " geoffk at gcc dot gnu dot org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: geoffk at gcc dot gnu dot org @ 2007-06-21 0:51 UTC (permalink / raw) To: gcc-bugs Given the following short program, struct pt { int x, y; }; struct pt sum(struct pt *p) { struct pt tmp = { 0, 0 }; int i; for (i = 0; i < 100; i++) { tmp.x += p[i].x; tmp.y += p[i].y; } return tmp; } on powerpc-darwin, built with -O2, I see that the main loop is storing tmp.x in r8 and tmp.y in r10 (or possibly the other way around). Yet, the debug information contains no location information for 'tmp'. A similar thing happens on i386-darwin where the values are stored in eax and edx. Also, on i386-darwin, 'i' is also not present in the debug information, although it is in %ecx. L2: addl -8(%esi,%ecx,8), %eax addl -4(%esi,%ecx,8), %edx addl $1, %ecx cmpl $101, %ecx jne L2 -- Summary: missing debug information for structure components Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: geoffk at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/32444] missing debug information for structure components 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org @ 2007-06-21 1:08 ` geoffk at gcc dot gnu dot org 2007-06-21 1:13 ` geoffk at gcc dot gnu dot org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: geoffk at gcc dot gnu dot org @ 2007-06-21 1:08 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from geoffk at gcc dot gnu dot org 2007-06-21 01:08 ------- Happens even with -O1. One of the causes is SRA, but there's more... -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/32444] missing debug information for structure components 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org 2007-06-21 1:08 ` [Bug debug/32444] " geoffk at gcc dot gnu dot org @ 2007-06-21 1:13 ` geoffk at gcc dot gnu dot org 2007-06-21 1:24 ` geoffk at gcc dot gnu dot org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: geoffk at gcc dot gnu dot org @ 2007-06-21 1:13 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from geoffk at gcc dot gnu dot org 2007-06-21 01:13 ------- The problem with 'i' is ivopts. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/32444] missing debug information for structure components 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org 2007-06-21 1:08 ` [Bug debug/32444] " geoffk at gcc dot gnu dot org 2007-06-21 1:13 ` geoffk at gcc dot gnu dot org @ 2007-06-21 1:24 ` geoffk at gcc dot gnu dot org 2007-06-21 9:01 ` [Bug debug/32444] missing debug information for structure components with optimized code pinskia at gcc dot gnu dot org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: geoffk at gcc dot gnu dot org @ 2007-06-21 1:24 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from geoffk at gcc dot gnu dot org 2007-06-21 01:24 ------- I split out the problem with 'i' to PR 32445. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/32444] missing debug information for structure components with optimized code 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org ` (2 preceding siblings ...) 2007-06-21 1:24 ` geoffk at gcc dot gnu dot org @ 2007-06-21 9:01 ` pinskia at gcc dot gnu dot org 2007-06-21 9:03 ` pinskia at gcc dot gnu dot org 2007-06-24 4:04 ` pinskia at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-06-21 9:01 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from pinskia at gcc dot gnu dot org 2007-06-21 09:01 ------- First temp is SRA'd so the debugging info should be correct unless tracking is wrong. Second iv-opts is messing up the debuging info for i by creating a new variable. I think this is a feature we would like to support but is not something we need to support that well. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Summary|missing debug information |missing debug information |for structure components |for structure components | |with optimized code http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/32444] missing debug information for structure components with optimized code 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org ` (3 preceding siblings ...) 2007-06-21 9:01 ` [Bug debug/32444] missing debug information for structure components with optimized code pinskia at gcc dot gnu dot org @ 2007-06-21 9:03 ` pinskia at gcc dot gnu dot org 2007-06-24 4:04 ` pinskia at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-06-21 9:03 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from pinskia at gcc dot gnu dot org 2007-06-21 09:03 ------- Actually SRA should be ok, because we do keep tracking them on the tree level. Daniel Berlin added this code. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug debug/32444] missing debug information for structure components with optimized code 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org ` (4 preceding siblings ...) 2007-06-21 9:03 ` pinskia at gcc dot gnu dot org @ 2007-06-24 4:04 ` pinskia at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-06-24 4:04 UTC (permalink / raw) To: gcc-bugs ------- Comment #6 from pinskia at gcc dot gnu dot org 2007-06-24 04:04 ------- http://gcc.gnu.org/ml/gcc/2005-01/msg00016.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444 ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2007-06-24 4:04 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2007-06-21 0:51 [Bug debug/32444] New: missing debug information for structure components geoffk at gcc dot gnu dot org 2007-06-21 1:08 ` [Bug debug/32444] " geoffk at gcc dot gnu dot org 2007-06-21 1:13 ` geoffk at gcc dot gnu dot org 2007-06-21 1:24 ` geoffk at gcc dot gnu dot org 2007-06-21 9:01 ` [Bug debug/32444] missing debug information for structure components with optimized code pinskia at gcc dot gnu dot org 2007-06-21 9:03 ` pinskia at gcc dot gnu dot org 2007-06-24 4:04 ` pinskia at gcc dot gnu dot org
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