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[4/4] arc: Don't use if-conversion when optimizing for size.

Message ID 20200203113832.20270-4-claziss@gmail.com
State New
Headers show
Series [1/4,ARC] Update mlo/mhi handling when big-endian CPU. | expand

Commit Message

Claudiu Zissulescu Ianculescu Feb. 3, 2020, 11:38 a.m. UTC 
For ARC, predicated instructions are not very friendly with size
optimizations, leading to increased object size. Disable if-conversion
step when optimized for size.

gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* common/config/arc/arc-common.c (arc_option_optimization_table):
	Disable if-conversion step when optimized for size.
---
 gcc/common/config/arc/arc-common.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Jeff Law Feb. 3, 2020, 4:25 p.m. UTC | #1 
On Mon, 2020-02-03 at 12:38 +0100, Claudiu Zissulescu wrote:
> For ARC, predicated instructions are not very friendly with size
> optimizations, leading to increased object size. Disable if-conversion
> step when optimized for size.
> 
> gcc/
> xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>
> 
> 	* common/config/arc/arc-common.c (arc_option_optimization_table):
> 	Disable if-conversion step when optimized for size.
OK
jeff
>
diff mbox series

Patch

diff --git a/gcc/common/config/arc/arc-common.c b/gcc/common/config/arc/arc-common.c
index 0b77dd546e5..7f46f547e30 100644
--- a/gcc/common/config/arc/arc-common.c
+++ b/gcc/common/config/arc/arc-common.c
@@ -59,6 +59,7 @@  static const struct default_options arc_option_optimization_table[] =
     { OPT_LEVELS_SIZE, OPT_mcase_vector_pcrel, NULL, 1 },
     { OPT_LEVELS_SIZE, OPT_msize_level_, NULL, 3 },
     { OPT_LEVELS_SIZE, OPT_mmillicode, NULL, 1 },
+    { OPT_LEVELS_SIZE, OPT_fif_conversion, NULL, 0 },
     { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
     { OPT_LEVELS_3_PLUS_SPEED_ONLY, OPT_msize_level_, NULL, 0 },
     { OPT_LEVELS_NONE, 0, NULL, 0 }