Bug 784801 - ICE in extract_insn, at recog.c:2109
Summary: ICE in extract_insn, at recog.c:2109
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: gcc
Version: 15
Hardware: arm
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: ARMTracker
TreeView+ depends on / blocked
 
Reported: 2012-01-26 09:38 UTC by Dan Horák
Modified: 2012-01-31 10:49 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-01-31 10:49:56 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Dan Horák 2012-01-26 09:38:12 UTC 
Build of hercules-3.07-2.fc15 fails on armv7hl (gcc-4.6.1-9.fc15.0.arm5.armv7hl) with

...
esame.c: In function 'z900_load_long_byte_register':
esame.c:8001:1: error: unrecognizable insn:
(insn 25 24 26 2 (set (subreg:SI (reg:DI 153 [ regs_7(D)->gr[r2_6].F.L.H.L.B.L ]) 0)
        (sign_extend:SI (mem/s:QI (plus:SI (mult:SI (reg:SI 152)
                        (const_int 8 [0x8]))
                    (reg/v/f:SI 144 [ regs ])) [0 regs_7(D)->gr[r2_6].F.L.H.L.B.L+0 S1 A64]))) esame.c:7999 -1
     (nil))
esame.c:8001:1: internal compiler error: in extract_insn, at recog.c:2109

Jakub, please take this report rather as placeholder for other people seeing the same error, because
- I don't have a armv7 system ready to provide the preprocessed sources or other outputs
- it could be already fixed in gcc 4.7 (I saw similar reports in gcc bugzilla)
- it's being built with a private gcc version not the Fedora one
Comment 1 Dan Horák 2012-01-26 09:48:02 UTC 
http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=279646 is the build
Comment 2 Jakub Jelinek 2012-01-31 10:49:56 UTC 
Builds just fine in f17, http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=292256
WONTFIX for GCC 4.6/ARM support.
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