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ifcvt.c (cond_exec_process_if_block): Do nothing if the last insn in the block is more than just a simple conditional...

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* ifcvt.c (cond_exec_process_if_block): Do nothing if the last insn
        in the block is more than just a simple conditional branch.
        (noce_process_if_block): Similarly.

From-SVN: r34287
This commit is contained in:
Jeffrey A Law 2000-05-31 07:33:02 +00:00 committed by Jeff Law
parent 71a1988124
commit 2bc631143e
2 changed files with 16 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Wed May 31 01:31:42 2000 Jeffrey A Law (law@cygnus.com)
* ifcvt.c (cond_exec_process_if_block): Do nothing if the last insn
in the block is more than just a simple conditional branch.
(noce_process_if_block): Similarly.
Tue May 30 22:25:57 2000 Alexandre Oliva <aoliva@cygnus.com>
* optabs.c (prepare_float_lib_cmp): Protect *px and *py from

10
gcc/ifcvt.c
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@ -313,6 +313,11 @@ cond_exec_process_if_block (test_bb, then_bb, else_bb, join_bb)
if (! test_expr)
return FALSE;
/* If the conditional jump is more than just a conditional jump,
then we can not do conditional execution conversion on this block. */
if (!onlyjump_p (test_bb->end))
return FALSE;
/* Collect the bounds of where we're to search. */
then_start = then_bb->head;
@ -1106,6 +1111,11 @@ noce_process_if_block (test_bb, then_bb, else_bb, join_bb)
if (! cond)
return FALSE;
/* If the conditional jump is more than just a conditional jump,
then we can not do if-conversion on this block. */
if (! onlyjump_p (jump))
return FALSE;
/* We must be comparing objects whose modes imply the size. */
if (GET_MODE (XEXP (cond, 0)) == BLKmode)
return FALSE;