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i386.md (*truncdfsf2_i387_1): New pattern.

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* config/i386/i386.md (*truncdfsf2_i387_1): New pattern.

	* fold-const.c (maybe_lvalue_p): Delete orphaned comment.

From-SVN: r97594
This commit is contained in:
Roger Sayle 2005-04-05 01:38:56 +00:00 committed by Roger Sayle
parent 604f5adf98
commit acaa3bf7a1
3 changed files with 22 additions and 1 deletions

6
gcc/ChangeLog

@ -1,3 +1,9 @@
2005-04-04 Roger Sayle <roger@eyesopen.com>
* config/i386/i386.md (*truncdfsf2_i387_1): New pattern.
* fold-const.c (maybe_lvalue_p): Delete orphaned comment.
2005-04-04 Ian Lance Taylor <ian@airs.com>
* c-typeck.c (struct c_switch): Rename switch_stmt field to

16
gcc/config/i386/i386.md

@ -3787,6 +3787,22 @@
[(set_attr "type" "fmov,multi")
(set_attr "mode" "SF")])
(define_insn "*truncdfsf2_i387_1"
[(set (match_operand:SF 0 "memory_operand" "=m")
(float_truncate:SF
(match_operand:DF 1 "register_operand" "f")))]
"TARGET_80387
&& !(TARGET_SSE2 && TARGET_SSE_MATH)
&& !TARGET_MIX_SSE_I387"
{
if (find_regno_note (insn, REG_DEAD, REGNO (operands[1])))
return "fstp%z0\t%y0";
else
return "fst%z0\t%y0";
}
[(set_attr "type" "fmov")
(set_attr "mode" "SF")])
(define_split
[(set (match_operand:SF 0 "register_operand" "")
(float_truncate:SF

1
gcc/fold-const.c

@ -2005,7 +2005,6 @@ fold_convert (tree type, tree arg)
/* Return false if expr can be assumed not to be an value, true
otherwise. */
/* Return an expr equal to X but certainly not valid as an lvalue. */
static bool
maybe_lvalue_p (tree x)