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Fix bootstrap on ia64, PR32764

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2007-07-18  Caroline Tice  <ctice@apple.com>
        
        * var-tracking.c (find_src_status):  Check for  COND_EXEC insns
        and handle them correctly; check that src is not NULL before
        trying to use it.
        (find_src_set_src): Likewise.

From-SVN: r126731
This commit is contained in:
Caroline Tice 2007-07-18 21:08:05 +00:00 committed by Caroline Tice
parent dadda6caba
commit 0ef0421e82
2 changed files with 39 additions and 20 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2007-07-18 Caroline Tice <ctice@apple.com>
* var-tracking.c (find_src_status): Check for COND_EXEC insns
and handle them correctly; check that src is not NULL before
trying to use it.
(find_src_set_src): Likewise.
2007-07-18 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/xtensa.c (xtensa_expand_mask_and_shift): New.

52
gcc/var-tracking.c
View File

@ -1806,27 +1806,33 @@ static enum var_init_status
find_src_status (dataflow_set *in, rtx loc, rtx insn)
{
rtx src = NULL_RTX;
rtx pattern;
tree decl = NULL_TREE;
enum var_init_status status = VAR_INIT_STATUS_UNINITIALIZED;
if (! flag_var_tracking_uninit)
status = VAR_INIT_STATUS_INITIALIZED;
if (GET_CODE (PATTERN (insn)) == SET)
src = SET_SRC (PATTERN (insn));
else if (GET_CODE (PATTERN (insn)) == PARALLEL
|| GET_CODE (PATTERN (insn)) == SEQUENCE)
pattern = PATTERN (insn);
if (GET_CODE (pattern) == COND_EXEC)
pattern = COND_EXEC_CODE (pattern);
if (GET_CODE (pattern) == SET)
src = SET_SRC (pattern);
else if (GET_CODE (pattern) == PARALLEL
|| GET_CODE (pattern) == SEQUENCE)
{
int i;
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));
for (i = XVECLEN (pattern, 0) - 1; i >= 0; i--)
if (GET_CODE (XVECEXP (pattern, 0, i)) == SET
&& SET_DEST (XVECEXP (pattern, 0, i)) == loc)
src = SET_SRC (XVECEXP (pattern, 0, i));
}
if (REG_P (src))
if (src && REG_P (src))
decl = var_debug_decl (REG_EXPR (src));
else if (MEM_P (src))
else if (src && MEM_P (src))
decl = var_debug_decl (MEM_EXPR (src));
if (src && decl)
@ -1845,26 +1851,32 @@ 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". */
rtx pattern;
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)
pattern = PATTERN (insn);
if (GET_CODE (pattern) == COND_EXEC)
pattern = COND_EXEC_CODE (pattern);
if (GET_CODE (pattern) == SET)
src = SET_SRC (pattern);
else if (GET_CODE (pattern) == PARALLEL
|| GET_CODE (pattern) == 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));
for (i = XVECLEN (pattern, 0) - 1; i >= 0; i--)
if (GET_CODE (XVECEXP (pattern, 0, i)) == SET
&& SET_DEST (XVECEXP (pattern, 0, i)) == loc)
src = SET_SRC (XVECEXP (pattern, 0, i));
}
if (REG_P (src))
if (src && REG_P (src))
decl = var_debug_decl (REG_EXPR (src));
else if (MEM_P (src))
else if (src && MEM_P (src))
decl = var_debug_decl (MEM_EXPR (src));
if (src && decl)