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| author | Richard Stallman <rms@gnu.org> | 1992-10-03 02:30:30 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1992-10-03 02:30:30 +0000 |
| commit | 52cdd5e580a96def08cf06487a338b26069999d9 (patch) | |
| tree | 467f7323d09fd5a790152adb0319e4395df12130 | |
| parent | 36ad49159d5e11f853f9ee5b929b61125e6807d7 (diff) | |
| download | gcc-52cdd5e580a96def08cf06487a338b26069999d9.zip gcc-52cdd5e580a96def08cf06487a338b26069999d9.tar.gz gcc-52cdd5e580a96def08cf06487a338b26069999d9.tar.bz2 | |
(output_mem_loc_descriptor, output_loc_descriptor):
Catch cases of bogus DECL_RTL values involving pseudo-regs (for all
target systems) and print an annoying message if we ever see such a case.
From-SVN: r2311
| -rw-r--r-- | gcc/dwarfout.c | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/gcc/dwarfout.c b/gcc/dwarfout.c index d282329..6535084 100644 --- a/gcc/dwarfout.c +++ b/gcc/dwarfout.c @@ -1474,11 +1474,11 @@ output_mem_loc_descriptor (rtl) /* Whenever a register number forms a part of the description of the method for calculating the (dynamic) address of a memory - resident object, Dwarf rules require the register number to + resident object, DWARF rules require the register number to be referred to as a "base register". This distinction is not based in any way upon what category of register the hardware believes the given register belongs to. This is strictly - Dwarf terminology we're dealing with here. + DWARF terminology we're dealing with here. */ Note that in cases where the location of a memory-resident data object could be expressed as: @@ -1489,12 +1489,21 @@ output_mem_loc_descriptor (rtl) be OP_BASEREG (basereg). This may look deceptively like the object in question was allocated to a register (rather than in memory) so DWARF consumers need to be aware of the subtle - distinction between OP_REG and OP_BASEREG. - */ + distinction between OP_REG and OP_BASEREG. */ ASM_OUTPUT_DWARF_STACK_OP (asm_out_file, OP_BASEREG); - ASM_OUTPUT_DWARF_DATA4 (asm_out_file, - DBX_REGISTER_NUMBER (REGNO (rtl))); + { + register unsigned regno = REGNO (rtl); + + if (regno >= FIRST_PSEUDO_REGISTER) + { + fprintf (stderr, "%s: regno botch detected: dwarfout.c:%u\n", + language_string, __LINE__); + debug_rtx(rtl); + regno = 0; + } + ASM_OUTPUT_DWARF_DATA4 (asm_out_file, DBX_REGISTER_NUMBER (regno)); + } break; case MEM: @@ -1549,8 +1558,18 @@ output_loc_descriptor (rtl) case REG: ASM_OUTPUT_DWARF_STACK_OP (asm_out_file, OP_REG); - ASM_OUTPUT_DWARF_DATA4 (asm_out_file, - DBX_REGISTER_NUMBER (REGNO (rtl))); + { + register unsigned regno = REGNO (rtl); + + if (regno >= FIRST_PSEUDO_REGISTER) + { + fprintf (stderr, "%s: regno botch detected: dwarfout.c:%u\n", + language_string, __LINE__); + debug_rtx(rtl); + regno = 0; + } + ASM_OUTPUT_DWARF_DATA4 (asm_out_file, DBX_REGISTER_NUMBER (regno)); + } break; case MEM: |