OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

cse.c (fold_rtx): Calculate the old cost before we fold each operand. 

* cse.c (fold_rtx): Calculate the old cost before we fold each
operand.

From-SVN: r57394
This commit is contained in:
Richard Earnshaw 2002-09-21 17:08:16 +00:00 committed by Richard Earnshaw
parent 51270f0a1b
commit 5b437e0fe5
2 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2002-09-21 Richard Earnshaw <rearnsha@arm.com>
* cse.c (fold_rtx): Calculate the old cost before we fold each
operand.
2002-09-21 Richard Henderson <rth@redhat.com>
* c-common.c (cpp_define_data_format): Remove __GCC_LITTLE_ENDIAN__,

2
gcc/cse.c
View File

@ -3732,6 +3732,7 @@ fold_rtx (x, insn)
rtx cheap_arg, expensive_arg;
rtx replacements[2];
int j;
int old_cost = COST_IN (XEXP (x, i), code);
/* Most arguments are cheap, so handle them specially. */
switch (GET_CODE (arg))
@ -3822,7 +3823,6 @@ fold_rtx (x, insn)
for (j = 0; j < 2 && replacements[j]; j++)
{
int old_cost = COST_IN (XEXP (x, i), code);
int new_cost = COST_IN (replacements[j], code);
/* Stop if what existed before was cheaper. Prefer constants