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* [Bug tree-optimization/113330] New: ICE: verify_gimple failed: conversion of register to a different size in 'view_convert_expr' with -O -fstack-check=generic and _BitInt()
@ 2024-01-11  9:16 zsojka at seznam dot cz
  2024-01-11 14:11 ` [Bug tree-optimization/113330] " jakub at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2024-01-11  9:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113330

            Bug ID: 113330
           Summary: ICE: verify_gimple failed: conversion of register to a
                    different size in 'view_convert_expr' with -O
                    -fstack-check=generic and _BitInt()
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu

Created attachment 57036
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57036&action=edit
reduced testcase

Maybe related to PR113297

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O --param=large-stack-frame=131072
-fstack-check=generic --param=sccvn-max-alias-queries-per-access=0 testcase.c 
testcase.c: In function 'foo':
testcase.c:15:1: error: conversion of register to a different size in
'view_convert_expr'
   15 | }
      | ^
VIEW_CONVERT_EXPR<_BitInt(65535)>(SR.6_11);

_4 = VIEW_CONVERT_EXPR<_BitInt(65535)>(SR.6_11);
during GIMPLE pass: esra
testcase.c:15:1: internal compiler error: verify_gimple failed
0x1557dbd verify_gimple_in_cfg(function*, bool, bool)
        /repo/gcc-trunk/gcc/tree-cfg.cc:5666
0x13c7774 execute_function_todo
        /repo/gcc-trunk/gcc/passes.cc:2088
0x13c7cce execute_todo
        /repo/gcc-trunk/gcc/passes.cc:2142
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-7127-20240110200826-g2105c49bbe8-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-7127-20240110200826-g2105c49bbe8-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20240111 (experimental) (GCC)

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2024-01-11  9:16 [Bug tree-optimization/113330] New: ICE: verify_gimple failed: conversion of register to a different size in 'view_convert_expr' with -O -fstack-check=generic and _BitInt() zsojka at seznam dot cz
2024-01-11 14:11 ` [Bug tree-optimization/113330] " jakub at gcc dot gnu.org
2024-01-11 14:22 ` jakub at gcc dot gnu.org
2024-01-12 10:22 ` cvs-commit at gcc dot gnu.org
2024-01-12 10:28 ` jakub at gcc dot gnu.org
2024-01-20 17:09 ` pinskia at gcc dot gnu.org

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