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[Bug target/71261] Trunk GCC hangs on knl and broadwell targets
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 25 May 2016 08:26:38 +0000
- Subject: [Bug target/71261] Trunk GCC hangs on knl and broadwell targets
- Auto-submitted: auto-generated
- References: <bug-71261-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71261
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |compile-time-hog
Target| |x86_64-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2016-05-25
Ever confirmed|0 |1
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes, certainly too slow ;) But likely we blow up somewhere odd. Yes:
> ./cc1plus -quiet t.ii -O3 -march=knl -ftime-report -fno-checking
Execution times (seconds)
rest of compilation : 16.57 (81%) usr 0.63 (54%) sys 17.27 (80%) wall
242780 kB (61%) ggc
TOTAL : 20.38 1.16 21.54
400732 kB
looks like some machine-reorg stuff.