https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104025
Bug ID: 104025 Summary: [12 Regression] '-fcompare-debug' failure with enabled warnings Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz CC: aoliva at gcc dot gnu.org Target Milestone: --- Host: x86_64-pc-linux-gnu Created attachment 52187 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52187&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -fcompare-debug testcase.C x86_64-pc-linux-gnu-gcc: error: testcase.C: '-fcompare-debug' failure $ diff -u *gkd ... @@ -31,11 +31,11 @@ (note # 0 0 NOTE_INSN_FUNCTION_BEG) (insn # 0 0 2 (set (reg/f:DI 0 ax [86]) (mem/f/c:DI (plus:DI (reg/f:DI 6 bp) - (const_int -8 [0xfffffffffffffff8])) [ this+0 S8 A64])) "testcase.C":14:16# {*movdi_internal} + (const_int -8 [0xfffffffffffffff8])) [ this+0 S8 A64])) "testcase.C":14:12# {*movdi_internal} (nil)) (insn # 0 0 2 (set (reg:SI 1 dx [orig:82 _1 ] [82]) (mem:SI (plus:DI (reg/f:DI 0 ax [86]) - (const_int 4 [0x4])) [ this_6(D)->c.i+0 S4 A32])) "testcase.C":14:16# {*movsi_internal} + (const_int 4 [0x4])) [ this_6(D)->c.i+0 S4 A32])) "testcase.C":14:12# {*movsi_internal} (nil)) (insn # 0 0 2 (set (reg/f:DI 0 ax [87]) (mem/f/c:DI (plus:DI (reg/f:DI 6 bp) $ x86_64-pc-linux-gnu-gcc -fcompare-debug testcase.C -w -c (no output) $ 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-r12-6567-20220114130226-gb77e3b4e458-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/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 --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-r12-6567-20220114130226-gb77e3b4e458-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.0.0 20220114 (experimental) (GCC)