This checkin: http://gcc.gnu.org/ml/gcc-cvs/2007-07/msg00486.html
causes /net/gnu-13/export/gnu/src/gcc/gcc/libgcc/../gcc/libgcc2.c: In function â__umodti3â: /net/gnu-13/export/gnu/src/gcc/gcc/libgcc/../gcc/libgcc2.c:1137: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make[5]: *** [_umoddi3.o] Error 1 var-tracking.c has static rtx find_src_set_src (dataflow_set *set, rtx loc, rtx insn) { tree decl = NULL_TREE; /* The variable being copied around. */ rtx src = NULL_RTX; /* The location "decl" is being copied from. */ rtx set_src = NULL_RTX; /* The value for "decl" stored in "src". */ void **slot; variable var; location_chain nextp; int i; bool found; if (GET_CODE (PATTERN (insn)) == SET) src = SET_SRC (PATTERN (insn)); else if (GET_CODE (PATTERN (insn)) == PARALLEL || GET_CODE (PATTERN (insn)) == SEQUENCE) { for (i = XVECLEN (PATTERN (insn), 0) - 1; i >= 0; i--) if (GET_CODE (XVECEXP (PATTERN (insn), 0, i)) == SET && SET_DEST (XVECEXP (PATTERN (insn), 0, i)) == loc) src = SET_SRC (XVECEXP (PATTERN (insn), 0, i)); } if (REG_P (src)) decl = var_debug_decl (REG_EXPR (src)); else if (MEM_P (src)) decl = var_debug_decl (MEM_EXPR (src)); That can't be right since src can be NULL and "if (REG_P (src))" will segfault. insn is (gdb) call debug_rtx (insn) (insn 535 895 533 50 /net/gnu-13/export/gnu/src/gcc/gcc/libgcc/../gcc/libgcc2.c:1056 (cond_exec (eq (reg:BI 262 p6 [704]) (const_int 0 [0x0])) (set (reg/v:DI 8 r8 [orig:386 m0.152 ] [386]) (reg/v:DI 15 r15 [orig:455 m0 ] [455]))) 783 {sync_lock_releasedi+5} (nil)) -- Summary: [4.3 regression] : Failed to bootstrap on Linux/ia64 Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl at lucon dot org GCC target triplet: ia64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32764
