https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106360
Bug ID: 106360
Summary: [13 regression] ICE in many test cases after
r13-1745-g4c323130257744
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:4c3231302577445417715a7c22e879e4159376d3, r13-1745-g4c323130257744
I saw this on a power 9 LE machine:
FAIL: gcc.dg/vect/slp-reduc-sad-2.c (internal compiler error: in fold_vec_perm,
at fold-const.cc:10548)
FAIL: gcc.dg/vect/slp-reduc-sad-2.c (test for excess errors)
FAIL: gcc.dg/vect/slp-reduc-sad-2.c -flto -ffat-lto-objects (internal compiler
error: in fold_vec_perm, at fold-const.cc:10548)
FAIL: gcc.dg/vect/slp-reduc-sad-2.c -flto -ffat-lto-objects (test for excess
errors)
FAIL: gcc.target/powerpc/vec-perm-ctor-run.c (internal compiler error: in
fold_vec_perm, at fold-const.cc:10548)
FAIL: gcc.target/powerpc/vec-perm-ctor-run.c (test for excess errors)
FAIL: gcc.target/powerpc/vec-perm-ctor.c (internal compiler error: in
fold_vec_perm, at fold-const.cc:10548)
FAIL: gcc.target/powerpc/vec-perm-ctor.c (test for excess errors)
There were some similar errors for other test cases on other hardware, too.
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/vect/slp-reduc-sad-2.c
-fdiagnostics-plain-output -maltivec -mpower9-vector -ftree-vectorize
-fno-tree-loop-distribute-patterns -fno-vect-cost-model -fno-common -O2
-fdump-tree-vect-details --param vect-epilogues-nomask=0 -S -o
slp-reduc-sad-2.s^M
during GIMPLE pass: forwprop^M
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/vect/slp-reduc-sad-2.c: In
function 'x264_pixel_sad_8x8':^M
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/vect/slp-reduc-sad-2.c:9:5:
internal compiler error: in fold_vec_perm, at fold-const.cc:10548^M
0x1073188b fold_vec_perm(tree_node*, tree_node*, tree_node*, vec_perm_indices
const&)^M
/home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:10546^M
0x1177bb17 generic_simplify_VEC_PERM_EXPR^M
/home/seurer/gcc/git/build/gcc-test/gcc/generic-match.cc:98733^M
0x1073a8bb fold_ternary_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*, tree_node*)^M
/home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:12844^M
0x10e31dfb simplify_permutation^M
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-forwprop.cc:2665^M
0x10e3ec63 execute^M
/home/seurer/gcc/git/gcc-test/gcc/tree-ssa-forwprop.cc:3748^M
commit 4c3231302577445417715a7c22e879e4159376d3 (HEAD, refs/bisect/bad)
Author: Prathamesh Kulkarni <prathamesh.kulka...@linaro.org>
Date: Tue Jul 19 17:43:26 2022 +0530
forwprop: Use lhs type instead of arg0 in folding VEC_PERM_EXPR.
