https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102031
Bug ID: 102031
Summary: [12 Regression] ICE in simplify_truncation, at
simplify-rtx.c:620 since
r12-3074-g7e5f9ead16d7514b3baa0254084de94f0bfcd216
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: sayle at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux-gnu
Target: s390x-linux-gnu
The following fails:
$ ./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/vector/vcond-shift.c
-O2 -c
during RTL pass: combine
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/vector/vcond-shift.c:
In function ‘vesrlh_lt’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/s390/vector/vcond-shift.c:134:1:
internal compiler error: in simplify_truncation, at simplify-rtx.c:620
134 | }
| ^
0x12a44cc simplify_context::simplify_truncation(machine_mode, rtx_def*,
machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:620
0x12a6c58 simplify_context::simplify_unary_operation_1(rtx_code, machine_mode,
rtx_def*)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:1230
0x12a5858 simplify_context::simplify_unary_operation(rtx_code, machine_mode,
rtx_def*, machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:893
0x12a3ac7 simplify_context::simplify_gen_unary(rtx_code, machine_mode,
rtx_def*, machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:360
0x12a56e2 simplify_context::simplify_truncation(machine_mode, rtx_def*,
machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:856
0x12a6c58 simplify_context::simplify_unary_operation_1(rtx_code, machine_mode,
rtx_def*)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:1230
0x12a5858 simplify_context::simplify_unary_operation(rtx_code, machine_mode,
rtx_def*, machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:893
0x12a3ac7 simplify_context::simplify_gen_unary(rtx_code, machine_mode,
rtx_def*, machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:360
0x12a4a2f simplify_context::simplify_truncation(machine_mode, rtx_def*,
machine_mode)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:722
0x12c175f simplify_context::simplify_subreg(machine_mode, rtx_def*,
machine_mode, poly_int<1u, unsigned long>)
/home/marxin/Programming/gcc2/gcc/simplify-rtx.c:7373
0xda796d simplify_subreg(machine_mode, rtx_def*, machine_mode, poly_int<1u,
unsigned long>)
/home/marxin/Programming/gcc2/gcc/rtl.h:3489
0x1ed8391 combine_simplify_rtx
/home/marxin/Programming/gcc2/gcc/combine.c:5804
0x1ed76de subst
/home/marxin/Programming/gcc2/gcc/combine.c:5535
0x1ed7455 subst
/home/marxin/Programming/gcc2/gcc/combine.c:5468
0x1ed020c try_combine
/home/marxin/Programming/gcc2/gcc/combine.c:3262
0x1eca7eb combine_instructions
/home/marxin/Programming/gcc2/gcc/combine.c:1267
0x1ef3802 rest_of_handle_combine
/home/marxin/Programming/gcc2/gcc/combine.c:14873
0x1ef38c2 execute
/home/marxin/Programming/gcc2/gcc/combine.c:14918
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with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
