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* [Bug target/94530] New: [9/10 Regression] ICE: SIGSEGV in rhs_regno (rtl.h:1924) with -Os -mcpu=falkor -mpc-relative-literal-loads -mcmodel=large
@ 2020-04-08 10:34 zsojka at seznam dot cz
  2020-04-08 10:47 ` [Bug target/94530] " ktkachov at gcc dot gnu.org
                   ` (9 more replies)
  0 siblings, 10 replies; 12+ messages in thread
From: zsojka at seznam dot cz @ 2020-04-08 10:34 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94530

            Bug ID: 94530
           Summary: [9/10 Regression] ICE: SIGSEGV in rhs_regno
                    (rtl.h:1924) with -Os -mcpu=falkor
                    -mpc-relative-literal-loads -mcmodel=large
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: aarch64-unknown-linux-gnu

Created attachment 48240
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48240&action=edit
reduced testcase

Compiler output:
$ aarch64-unknown-linux-gnu-gcc -Os -mcpu=falkor -mpc-relative-literal-loads
-mcmodel=large testcase.c -wrapper valgrind,-q,--track-origins=yes
==19355== Use of uninitialised value of size 8
==19355==    at 0x14B84CD: rhs_regno (rtl.h:1924)
==19355==    by 0x14B84CD: valid_src_p (falkor-tag-collision-avoidance.c:541)
==19355==    by 0x14B84CD: get_load_info(rtx_insn*, loop*, rtx_def**,
rtx_def**, rtx_def**, bool*, bool*) (falkor-tag-collision-avoidance.c:641)
==19355==    by 0x14B98D5: record_loads (falkor-tag-collision-avoidance.c:771)
==19355==    by 0x14B98D5: execute_tag_collision_avoidance()
(falkor-tag-collision-avoidance.c:824)
==19355==    by 0x14BA508: pass_tag_collision_avoidance::execute(function*)
(falkor-tag-collision-avoidance.c:871)
==19355==    by 0xFD3B7E: execute_one_pass(opt_pass*) (passes.c:2502)
==19355==    by 0xFD432F: execute_pass_list_1(opt_pass*) (passes.c:2590)
==19355==    by 0xFD4341: execute_pass_list_1(opt_pass*) (passes.c:2591)
==19355==    by 0xFD4341: execute_pass_list_1(opt_pass*) (passes.c:2591)
==19355==    by 0xFD4368: execute_pass_list(function*, opt_pass*)
(passes.c:2601)
==19355==    by 0xC2E14B: cgraph_node::expand() (cgraphunit.c:2299)
==19355==    by 0xC2F1EF: expand_all_functions (cgraphunit.c:2470)
==19355==    by 0xC2F1EF: symbol_table::compile() [clone .part.0]
(cgraphunit.c:2820)
==19355==    by 0xC3195C: compile (cgraphunit.c:2733)
==19355==    by 0xC3195C: symbol_table::finalize_compilation_unit()
(cgraphunit.c:3000)
==19355==    by 0x10D263A: compile_file() (toplev.c:483)
==19355==  Uninitialised value was created by a stack allocation
==19355==    at 0x14B829D: get_load_info(rtx_insn*, loop*, rtx_def**,
rtx_def**, rtx_def**, bool*, bool*) (falkor-tag-collision-avoidance.c:592)
==19355== 
==19355== Invalid read of size 2
==19355==    at 0x14B84CD: rhs_regno (rtl.h:1924)
==19355==    by 0x14B84CD: valid_src_p (falkor-tag-collision-avoidance.c:541)
==19355==    by 0x14B84CD: get_load_info(rtx_insn*, loop*, rtx_def**,
rtx_def**, rtx_def**, bool*, bool*) (falkor-tag-collision-avoidance.c:641)
==19355==    by 0x14B98D5: record_loads (falkor-tag-collision-avoidance.c:771)
==19355==    by 0x14B98D5: execute_tag_collision_avoidance()
(falkor-tag-collision-avoidance.c:824)
==19355==    by 0x14BA508: pass_tag_collision_avoidance::execute(function*)
(falkor-tag-collision-avoidance.c:871)
==19355==    by 0xFD3B7E: execute_one_pass(opt_pass*) (passes.c:2502)
==19355==    by 0xFD432F: execute_pass_list_1(opt_pass*) (passes.c:2590)
==19355==    by 0xFD4341: execute_pass_list_1(opt_pass*) (passes.c:2591)
==19355==    by 0xFD4341: execute_pass_list_1(opt_pass*) (passes.c:2591)
==19355==    by 0xFD4368: execute_pass_list(function*, opt_pass*)
(passes.c:2601)
==19355==    by 0xC2E14B: cgraph_node::expand() (cgraphunit.c:2299)
==19355==    by 0xC2F1EF: expand_all_functions (cgraphunit.c:2470)
==19355==    by 0xC2F1EF: symbol_table::compile() [clone .part.0]
(cgraphunit.c:2820)
==19355==    by 0xC3195C: compile (cgraphunit.c:2733)
==19355==    by 0xC3195C: symbol_table::finalize_compilation_unit()
(cgraphunit.c:3000)
==19355==    by 0x10D263A: compile_file() (toplev.c:483)
==19355==  Address 0x1 is not stack'd, malloc'd or (recently) free'd
==19355== 
during RTL pass: tag_collision_avoidance
testcase.c: In function 'foo':
testcase.c:6:1: internal compiler error: Segmentation fault
    6 | }
      | ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.

$ aarch64-unknown-linux-gnu-gcc -v                                              
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r10-7607-20200407213012-gc23c899aedf-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/10.0.1/lto-wrapper
Target: aarch64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl
--with-sysroot=/usr/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r10-7607-20200407213012-gc23c899aedf-checking-yes-rtl-df-extra-aarch64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.0.1 20200407 (experimental) (GCC)

^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2020-04-20 12:30 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-08 10:34 [Bug target/94530] New: [9/10 Regression] ICE: SIGSEGV in rhs_regno (rtl.h:1924) with -Os -mcpu=falkor -mpc-relative-literal-loads -mcmodel=large zsojka at seznam dot cz
2020-04-08 10:47 ` [Bug target/94530] " ktkachov at gcc dot gnu.org
2020-04-08 10:52 ` rguenth at gcc dot gnu.org
2020-04-08 11:09 ` andrea.corallo at arm dot com
2020-04-08 11:28 ` jakub at gcc dot gnu.org
2020-04-09  8:52 ` cvs-commit at gcc dot gnu.org
2020-04-14  9:53 ` zsojka at seznam dot cz
2020-04-15 13:03   ` Andrea Corallo
2020-04-14 10:03 ` akrl at gcc dot gnu.org
2020-04-15 13:03 ` andrea.corallo at arm dot com
2020-04-18 16:27 ` law at redhat dot com
2020-04-20 12:30 ` cvs-commit at gcc dot gnu.org

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