From 7b64da89ba1a942bdbdde8dfba63805ae3d2fbc3 Mon Sep 17 00:00:00 2001
From: Richard Earnshaw <erich@gnu.org>
Date: Thu, 12 Dec 1996 10:53:05 +0000
Subject: [PATCH] (arm_gen_constant, case IOR,XOR): Don't invert a constant if
loading it into a temporary.
From-SVN: r13290
---
gcc/config/arm/arm.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 97ad6ed800d3..fb4705cf4054 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -701,8 +701,8 @@ arm_gen_constant (code, mode, val, target, source, subtargets, generate)
case IOR:
case XOR:
- /* If we have IOR or XOR, and the inverse of the constant can be loaded
- in a single instruction, and we can find a temporary to put it in,
+ /* If we have IOR or XOR, and the constant can be loaded in a
+ single instruction, and we can find a temporary to put it in,
then this can be done in two instructions instead of 3-4. */
if (subtargets
|| (reload_completed && ! reg_mentioned_p (target, source)))
@@ -713,8 +713,7 @@ arm_gen_constant (code, mode, val, target, source, subtargets, generate)
{
rtx sub = subtargets ? gen_reg_rtx (mode) : target;
- emit_insn (gen_rtx (SET, VOIDmode, sub,
- GEN_INT (ARM_SIGN_EXTEND (~ val))));
+ emit_insn (gen_rtx (SET, VOIDmode, sub, GEN_INT (val)));
emit_insn (gen_rtx (SET, VOIDmode, target,
gen_rtx (code, mode, source, sub)));
}