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| author | Roger Sayle <roger@eyesopen.com> | 2003-11-02 13:56:42 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2003-11-02 13:56:42 +0000 |
| commit | 31f0f571e61d1d7f8ff67a4f6a741173dfc4161c (patch) | |
| tree | 3b7c1888d9ed7fad3b4bf1b5208f5a4d7e6b11cf /gcc/print-rtl.c | |
| parent | 2077750a864920bb1f80a1b6998142d2b3c80dc8 (diff) | |
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re PR rtl-optimization/10817 (gcc does not optimize result=0;if(t!=0)result=t; to result=t;)
PR optimization/10817
* ifcvt.c (noce_emit_move_insn): Improve documentation comment.
(noce_try_move): New function to optimize an if-the-else into an
unconditional move, i.e. "if (a!=b) x=a; else x=b" into "x=a".
(noce_process_if_block): Attempt simplification with noce_try_move.
* simplify-rtx.c (simplify_ternary_operation): Some minor fixes
and improvements to the optimizations of IF_THEN_ELSE expressions.
(simplify_subreg): Silence signed/unsigned comparison warning.
* gcc.c-torture/compile/20031102-1.c: New test case.
From-SVN: r73200
Diffstat (limited to 'gcc/print-rtl.c')
0 files changed, 0 insertions, 0 deletions