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| author | Jakub Jelinek <jakub@redhat.com> | 2011-03-29 01:53:46 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-03-29 01:53:46 +0200 |
| commit | 2b80199f41d444c88474b32792a7e828f2a96b68 (patch) | |
| tree | 7d5601e9e49e4f8fa5cf78fc46ce899d76d94f4f /gcc/dwarf2out.c | |
| parent | b9da60aea69647fd7957dc328a8431412157d3a7 (diff) | |
| download | gcc-2b80199f41d444c88474b32792a7e828f2a96b68.zip gcc-2b80199f41d444c88474b32792a7e828f2a96b68.tar.gz gcc-2b80199f41d444c88474b32792a7e828f2a96b68.tar.bz2 | |
re PR debug/48203 (ICE in dwarf2out.c while building eglibc.)
PR debug/48203
* cfgexpand.c (expand_debug_expr) <case SSA_NAME>: Only
create ENTRY_VALUE if incoming or address of incoming's MEM
is a hard REG.
* dwarf2out.c (mem_loc_descriptor): Don't emit
DW_OP_GNU_entry_value of DW_OP_fbreg.
* var-tracking.c (vt_add_function_parameter): Ensure cselib_lookup
on ENTRY_VALUE is able to find the canonical parameter VALUE.
* cselib.c (rtx_equal_for_cselib_1) <case ENTRY_VALUE>: Use
rtx_equal_p instead of rtx_equal_for_cselib_1 to compare
ENTRY_VALUE_EXPs.
(cselib_hash_rtx) <case ENTRY_VALUE>: If ENTRY_VALUE_EXP
is a REG_P or MEM_P with REG_P address, compute hash directly
instead of calling cselib_hash_rtx on ENTRY_VALUE_EXP.
(preserve_only_constants): Don't clear VALUES forwaring
ENTRY_VALUE to some other VALUE.
* gcc.dg/pr48203.c: New test.
From-SVN: r171640
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 77d533e..182a894 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -13891,7 +13891,7 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode, dw_loc_descr_ref ref = mem_loc_descriptor (ENTRY_VALUE_EXP (rtl), GET_MODE (rtl), VAR_INIT_STATUS_INITIALIZED); - if (ref == NULL) + if (ref == NULL || ref->dw_loc_opc == DW_OP_fbreg) return NULL; mem_loc_result->dw_loc_oprnd1.v.val_loc = ref; } |