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r111283 - in /trunk/gcc: ChangeLog gcse.c loop-...
- From: sayle at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Sun, 19 Feb 2006 22:01:17 -0000
- Subject: r111283 - in /trunk/gcc: ChangeLog gcse.c loop-...
Author: sayle
Date: Sun Feb 19 22:01:17 2006
New Revision: 111283
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=111283
Log:
* gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
constant pool references to identify stack mode constants.
* rtlanal.c (constant_pool_constant_p): New predicate to check
whether operand is a floating point constant in the pool.
* rtl.h (constant_pool_constant_p): Prototype here.
* loop.c (scan_loop): Avoid hoisting constants from the constant
pool on STACK_REGS targets.
(load_mems): Likewise.
* loop-invariant.c (get_inv_cost): Make hoisting constant pool
loads into x87 registers expensive in terms of register pressure.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gcse.c
trunk/gcc/loop-invariant.c
trunk/gcc/loop.c
trunk/gcc/rtl.h
trunk/gcc/rtlanal.c