https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112523
Bug ID: 112523
Summary: [14 regression] ICE in ipa_push_agg_values_from_jfunc,
at ipa-cp.cc:2139
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: build, ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: sayle at gcc dot gnu.org
Target Milestone: ---
Host: i386-pc-solaris2.11
Target: i386-pc-solaris2.11
Build: i386-pc-solaris2.11
Between 20231110 and 20231123, Solaris/x86 bootstrap got broken: both the 32
and 64-bit libgcc/unwind-dw2.c and unwind-dw2-fde-dip.c cause an ICE:
during IPA pass: inline
/vol/gcc/src/hg/master/local/libgcc/unwind-dw2.c:1472: internal compiler error:
in ipa_push_agg_values_from_jfunc, at ipa-cp.cc:2139
1472 |
|
A reghunt identified this patch
commit 0a140730c970870a5125beb1114f6c01679a040e
Author: Roger Sayle <ro...@nextmovesoftware.com>
Date: Mon Nov 13 09:05:16 2023 +0000
i386: Improve reg pressure of double word right shift then truncate.
as the culprit. I've reduce unwind-dw2.c to the attached testcase. The
failure can be seen with
cc1 -fpreprocessed unwind-dw2.i -quiet -mtune=generic -march=pentium4 -O2
