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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/102087] [12 Regression] ICE on valid code at
 -O3 on x86_64-linux-gnu: in determine_exit_conditions, at
 tree-ssa-loop-manip.c:1049 since r12-3136-g3673dcf6d6baeb67
Date: Fri, 24 Sep 2021 17:47:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102087

--- Comment #15 from David Binderman <dcb314 at hotmail dot com> ---
Since this bug depends on the setting of -march,
I tried out all the possible legal settings of that value.

alderlake
amdfam10
during GIMPLE pass: aprefetch
athlon-fx
during GIMPLE pass: aprefetch
athlon64
during GIMPLE pass: aprefetch
athlon64-sse3
during GIMPLE pass: aprefetch
atom
barcelona
during GIMPLE pass: aprefetch
bdver1
during GIMPLE pass: aprefetch
bdver2
during GIMPLE pass: aprefetch
bdver3
during GIMPLE pass: aprefetch
bdver4
during GIMPLE pass: aprefetch
bonnell
broadwell
btver1
during GIMPLE pass: aprefetch
btver2
during GIMPLE pass: aprefetch
cannonlake
cascadelake
cooperlake
core-avx-i
core-avx2
core2
corei7
corei7-avx
eden-x2
during GIMPLE pass: aprefetch
eden-x4
during GIMPLE pass: aprefetch
goldmont
goldmont-plus
haswell
celake-client
icelake-server
ivybridge
k8
during GIMPLE pass: aprefetch
k8-sse3
during GIMPLE pass: aprefetch
knl
knm
nano
during GIMPLE pass: aprefetch
nano-1000
during GIMPLE pass: aprefetch
nano-2000
during GIMPLE pass: aprefetch
nano-3000
during GIMPLE pass: aprefetch
nano-x2
during GIMPLE pass: aprefetch
nano-x4
during GIMPLE pass: aprefetch
native
during GIMPLE pass: aprefetch
nehalem
nocona
opteron
during GIMPLE pass: aprefetch
opteron-sse3
during GIMPLE pass: aprefetch
rocketlake
sandybridge
sapphirerapids
silvermont
skylake
skylake-avx512
slm
tigerlake
tremont
westmere
x86-64
x86-64-v2
x86-64-v3
x86-64-v4
znver1
znver2
znver3

I generated this list with this command:

$ for i in `cat ~/arch.list`; do echo $i; /home/dcb/gcc/results/bin/gcc -c =
-O3
-march=3D$i bug760.c 2>&1 | fgrep GIMPLE ; done=