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re PR target/45063 (ICE: Segmentation fault (cc1) compiling matmul_i1.c) 

PR target/45063
	* caller-save.c (save_call_clobbered_regs): Remove regs from
	hard_regs_saved when they are set.

From-SVN: r162828
This commit is contained in:
Bernd Schmidt 2010-08-02 20:17:59 +00:00 committed by Bernd Schmidt
parent fea8c25725
commit 14292418cb
2 changed files with 18 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-08-02 Bernd Schmidt <bernds@codesourcery.com>
PR target/45063
* caller-save.c (save_call_clobbered_regs): Remove regs from
hard_regs_saved when they are set.
2010-08-02 Uros Bizjak <ubizjak@gmail.com>
PR target/41089

13
gcc/caller-save.c
View File

@ -763,6 +763,7 @@ save_call_clobbered_regs (void)
if (n_regs_saved)
{
int regno;
HARD_REG_SET this_insn_sets;
if (code == JUMP_INSN)
/* Restore all registers if this is a JUMP_INSN. */
@ -777,7 +778,17 @@ save_call_clobbered_regs (void)
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (TEST_HARD_REG_BIT (referenced_regs, regno))
regno += insert_restore (chain, 1, regno, MOVE_MAX_WORDS, save_mode);
regno += insert_restore (chain, 1, regno, MOVE_MAX_WORDS,
save_mode);
/* If a saved register is set after the call, this means we no
longer should restore it. This can happen when parts of a
multi-word pseudo do not conflict with other pseudos, so
IRA may allocate the same hard register for both. One may
be live across the call, while the other is set
afterwards. */
CLEAR_HARD_REG_SET (this_insn_sets);
note_stores (PATTERN (insn), mark_set_regs, &this_insn_sets);
AND_COMPL_HARD_REG_SET (hard_regs_saved, this_insn_sets);
}
if (code == CALL_INSN