mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-01-13 14:55:16 +08:00
Code Issues Packages Projects Releases Wiki Activity

expmed.c (emit_store_flag): Extract updated comparison code from the return value of compare_from_rtx.

Browse Source 
* expmed.c (emit_store_flag): Extract updated comparison code
        from the return value of compare_from_rtx.
        * expr.c (do_store_flag): Similarly.

From-SVN: r48128
This commit is contained in:
Jeff Law 2001-12-17 14:20:03 -07:00 committed by Jeff Law
parent 79503fdd33
commit 8f08e8c010
3 changed files with 20 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
Mon Dec 17 14:21:21 2001 Jeffrey A Law (law@redhat.com)
* expmed.c (emit_store_flag): Extract updated comparison code
from the return value of compare_from_rtx.
* expr.c (do_store_flag): Similarly.
2001-12-17 Nick Clifton <nickc@cambridge.redhat.com>
* caller-save.c (init_caller_save): Use MODE_BASE_REG_CLASS in

11
gcc/expmed.c
View File

@ -4350,12 +4350,13 @@ emit_store_flag (target, code, op0, op1, mode, unsignedp, normalizep)
: normalizep == -1 ? constm1_rtx
: const_true_rtx);
/* If the code of COMPARISON doesn't match CODE, something is
wrong; we can no longer be sure that we have the operation.
We could handle this case, but it should not happen. */
/* The code of COMPARISON may not match CODE if compare_from_rtx
decided to swap its operands and reverse the original code.
if (GET_CODE (comparison) != code)
abort ();
We know that compare_from_rtx returns either a CONST_INT or
a new comparison code, so it is safe to just extract the
code from COMPARISON. */
code = GET_CODE (comparison);
/* Get a reference to the target in the proper mode for this insn. */
compare_mode = insn_data[(int) icode].operand[0].mode;

8
gcc/expr.c
View File

@ -10235,6 +10235,14 @@ do_store_flag (exp, target, mode, only_cheap)
|| (result != const0_rtx && invert))
? const0_rtx : const1_rtx);
/* The code of RESULT may not match CODE if compare_from_rtx
decided to swap its operands and reverse the original code.
We know that compare_from_rtx returns either a CONST_INT or
a new comparison code, so it is safe to just extract the
code from RESULT. */
code = GET_CODE (result);
label = gen_label_rtx ();
if (bcc_gen_fctn[(int) code] == 0)
abort ();