[PATCH, i386]: Do not limit the cost of moves to/from XMM register to minimum 8.
Uros Bizjak
ubizjak@gmail.com
Thu Aug 29 20:01:00 GMT 2019
2019-08-28 Uroš Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (ix86_register_move_cost): Do not
limit the cost of moves to/from XMM register to minimum 8.
Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.
Actually committed as r274994 with the wrong ChangeLog.
Uros.
-------------- next part --------------
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 49ab50ea41bf..11c75be113e0 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -18601,9 +18601,9 @@ ix86_register_move_cost (machine_mode mode, reg_class_t class1_i,
where integer modes in SSE registers are not tieable
because of missing QImode and HImode moves to, from or between
MMX/SSE registers. */
- return MAX (8, SSE_CLASS_P (class1)
- ? ix86_cost->hard_register.sse_to_integer
- : ix86_cost->hard_register.integer_to_sse);
+ return (SSE_CLASS_P (class1)
+ ? ix86_cost->hard_register.sse_to_integer
+ : ix86_cost->hard_register.integer_to_sse);
if (MAYBE_FLOAT_CLASS_P (class1))
return ix86_cost->hard_register.fp_move;
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