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From: "asolokha at gmx dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/107103] New: '-fcompare-debug' failure w/ -mcpu=power4 -O1 -fschedule-insns -funroll-all-loops -fno-sched-pressure --param max-sched-ready-insns=1 Date: Fri, 30 Sep 2022 16:39:00 +0000 [thread overview] Message-ID: <bug-107103-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107103 Bug ID: 107103 Summary: '-fcompare-debug' failure w/ -mcpu=power4 -O1 -fschedule-insns -funroll-all-loops -fno-sched-pressure --param max-sched-ready-insns=1 Product: gcc Version: 13.0 Status: UNCONFIRMED Keywords: compare-debug-failure Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- Target: powerpc-*-linux-gnu gcc 13.0.0 20220925 snapshot (g:77bbf69d2981dafc2ef3e59bfbefb645d88bab9d) fails -fcompare-debug check when compiling the following testcase, reduced from gcc/testsuite/g++.target/powerpc/pr65240-1.C, w/ -mcpu=power4 -O1 -fschedule-insns -funroll-all-loops -fno-sched-pressure --param max-sched-ready-insns=1: int *p; int n; int bar (int); void foo (int x) { for (;;) if (x) p[n] = bar (x); } % powerpc-e300c3-linux-gnu-gcc-13.0.0 -mcpu=power4 -O1 -fcompare-debug -fschedule-insns -funroll-all-loops -fno-sched-pressure --param max-sched-ready-insns=1 -c ke3djyoc.c powerpc-e300c3-linux-gnu-gcc-13.0.0: error: ke3djyoc.c: '-fcompare-debug' failure --- ke3djyoc.c.gkd 2022-09-30 23:33:02.202245982 +0700 +++ ke3djyoc.gk.c.gkd 2022-09-30 23:33:02.218245953 +0700 @@ -102,16 +102,16 @@ (code_label # 0 0 19 (nil) [8 uses]) (note # 0 0 [bb 3] NOTE_INSN_BASIC_BLOCK) (note # 0 0 NOTE_INSN_DELETED) +(insn # 0 0 (set (reg/f:SI 30 30 [orig:131 p ] [131]) + (mem/f/c:SI (lo_sum:SI (reg/f:SI 27 27 [126]) + (symbol_ref:SI ("p") [flags 0x86] <var_decl # p>)) [ p+0 S4 A32])) "ke3djyoc.c":12:8# {*movsi_internal1} + (nil)) (insn # 0 0 (set (reg:SI 31 31 [orig:130 n ] [130]) (mem/c:SI (lo_sum:SI (reg/f:SI 28 28 [128]) (symbol_ref:SI ("n") [flags 0x86] <var_decl # n>)) [ n+0 S4 A32])) "ke3djyoc.c":12:8# {*movsi_internal1} (expr_list:REG_EQUIV (mem/c:SI (lo_sum:SI (reg/f:SI 28 28 [128]) (symbol_ref:SI ("n") [flags 0x86] <var_decl # n>)) [ n+0 S4 A32]) (nil))) -(insn # 0 0 (set (reg/f:SI 30 30 [orig:131 p ] [131]) - (mem/f/c:SI (lo_sum:SI (reg/f:SI 27 27 [126]) - (symbol_ref:SI ("p") [flags 0x86] <var_decl # p>)) [ p+0 S4 A32])) "ke3djyoc.c":12:8# {*movsi_internal1} - (nil)) (insn # 0 0 (set (reg:SI 3 3) (reg/v:SI 29 29 [orig:123 x ] [123])) "ke3djyoc.c":12:14# {*movsi_internal1} (nil))
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