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2010-11-08 Yao Qi <yao@codesourcery.com>
Backport from mainline:
gcc/
2010-08-02 Bernd Schmidt <bernds@codesourcery.com>
* config/arm/arm.c (arm_rtx_costs_1): Remove second clause from the
if statement which adds extra costs to frame-related
expressions.
=== modified file 'gcc/config/arm/arm.c'
--- old/gcc/config/arm/arm.c 2010-11-11 11:00:53 +0000
+++ new/gcc/config/arm/arm.c 2010-11-11 11:50:33 +0000
@@ -6805,12 +6805,10 @@
since then they might not be moved outside of loops. As a compromise
we allow integration with ops that have a constant as their second
operand. */
- if ((REG_OR_SUBREG_REG (XEXP (x, 0))
- && ARM_FRAME_RTX (REG_OR_SUBREG_RTX (XEXP (x, 0)))
- && GET_CODE (XEXP (x, 1)) != CONST_INT)
- || (REG_OR_SUBREG_REG (XEXP (x, 0))
- && ARM_FRAME_RTX (REG_OR_SUBREG_RTX (XEXP (x, 0)))))
- *total = 4;
+ if (REG_OR_SUBREG_REG (XEXP (x, 0))
+ && ARM_FRAME_RTX (REG_OR_SUBREG_RTX (XEXP (x, 0)))
+ && GET_CODE (XEXP (x, 1)) != CONST_INT)
+ *total = COSTS_N_INSNS (1);
if (mode == DImode)
{
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