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fix for see 

From-SVN: r114230
This commit is contained in:
Mircea Namolaru 2006-05-30 07:53:02 +00:00 committed by Olga Golovanevsky
parent 55b2de7516
commit 5f431007f1
1 changed files with 10 additions and 2 deletions
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12
gcc/see.c
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@ -674,6 +674,10 @@ see_get_extension_reg (rtx extension, bool return_dest_reg)
rtx reg1 = NULL;
rtx reg2 = NULL;
/* Parallel pattern for extension not supported for the moment. */
if (GET_CODE (PATTERN (extension)) == PARALLEL)
return NULL;
set = single_set (extension);
if (!set)
return NULL;
@ -719,6 +723,10 @@ see_get_extension_data (rtx extension, enum machine_mode *source_mode)
if (!extension || !INSN_P (extension))
return UNKNOWN;
/* Parallel pattern for extension not supported for the moment. */
if (GET_CODE (PATTERN (extension)) == PARALLEL)
return NOT_RELEVANT;
set = single_set (extension);
if (!set)
return NOT_RELEVANT;
@ -3462,8 +3470,8 @@ see_analyze_one_def (rtx insn, enum machine_mode *source_mode,
relevant. Handling this extension as relevant would make things much
more complicated. */
next_insn = NEXT_INSN (insn);
if (prev_insn
&& INSN_P (prev_insn)
if (next_insn
&& INSN_P (next_insn)
&& (see_get_extension_data (next_insn, &next_source_mode) !=
NOT_RELEVANT))
{