From: Chung-Lin Tang <cltang@codesourcery.com>
Date: Sun, 19 Dec 2010 09:04:41 +0000 (+0000)
Subject: arm.c (arm_legitimate_index_p): Add VFP load/store index range case.
X-Git-Tag: releases/gcc-4.6.0~1765
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f3fb659020df1d8e15f903e2940b1e333c2649b4;p=thirdparty%2Fgcc.git

arm.c (arm_legitimate_index_p): Add VFP load/store index range case.

2010-12-19  Chung-Lin Tang  <cltang@codesourcery.com>

	gcc/
	* config/arm/arm.c (arm_legitimate_index_p): Add VFP load/store
	index range case. Change to SF/DFmode tests to avoid capturing HFmode.
	(thumb2_legitimate_index_p): Same.

	gcc/testsuite/
	* gcc.target/arm/vfp-1.c (test_ldst): New test for VFP
	load/store immediate indexes.

From-SVN: r168045
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0450bfd37e6c..f79db55574a6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-12-19  Chung-Lin Tang  <cltang@codesourcery.com>
+
+	* config/arm/arm.c (arm_legitimate_index_p): Add VFP load/store
+	index range case. Change to SF/DFmode tests to avoid capturing HFmode.
+	(thumb2_legitimate_index_p): Same.
+
 2010-12-18  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/46969
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 2bfdd9fec551..d7108a38ec05 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -5647,8 +5647,8 @@ arm_legitimate_index_p (enum machine_mode mode, rtx index, RTX_CODE outer,
 
   /* Standard coprocessor addressing modes.  */
   if (TARGET_HARD_FLOAT
-      && (TARGET_FPA || TARGET_MAVERICK)
-      && (GET_MODE_CLASS (mode) == MODE_FLOAT
+      && (TARGET_VFP || TARGET_FPA || TARGET_MAVERICK)
+      && (mode == SFmode || mode == DFmode
 	  || (TARGET_MAVERICK && mode == DImode)))
     return (code == CONST_INT && INTVAL (index) < 1024
 	    && INTVAL (index) > -1024
@@ -5768,8 +5768,8 @@ thumb2_legitimate_index_p (enum machine_mode mode, rtx index, int strict_p)
   /* ??? Combine arm and thumb2 coprocessor addressing modes.  */
   /* Standard coprocessor addressing modes.  */
   if (TARGET_HARD_FLOAT
-      && (TARGET_FPA || TARGET_MAVERICK)
-      && (GET_MODE_CLASS (mode) == MODE_FLOAT
+      && (TARGET_VFP || TARGET_FPA || TARGET_MAVERICK)
+      && (mode == SFmode || mode == DFmode
 	  || (TARGET_MAVERICK && mode == DImode)))
     return (code == CONST_INT && INTVAL (index) < 1024
 	    && INTVAL (index) > -1024
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6f30e61b1747..d8c514654c53 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-12-19  Chung-Lin Tang  <cltang@codesourcery.com>
+
+	* gcc.target/arm/vfp-1.c (test_ldst): New test for VFP
+	load/store immediate indexes.
+
 2010-12-19  Nicola Pero  <nicola.pero@meta-innovation.com>
 
 	* objc.dg/gnu-api-2-resolve-method.m: Include objc/message.h.
diff --git a/gcc/testsuite/gcc.target/arm/vfp-1.c b/gcc/testsuite/gcc.target/arm/vfp-1.c
index bbf91409842f..3a7090e4be3d 100644
--- a/gcc/testsuite/gcc.target/arm/vfp-1.c
+++ b/gcc/testsuite/gcc.target/arm/vfp-1.c
@@ -125,3 +125,15 @@ void test_convert () {
   d1 = u1;
 }
 
+void test_ldst (float f[], double d[]) {
+  /* { dg-final { scan-assembler "flds.+ \\\[r0, #1020\\\]" } } */
+  /* { dg-final { scan-assembler "flds.+ \\\[r0, #-1020\\\]" } } */
+  /* { dg-final { scan-assembler "add.+ r0, #1024" } } */
+  /* { dg-final { scan-assembler "fsts.+ \\\[r0, #0\\\]$" } } */
+  f[256] = f[255] + f[-255];
+
+  /* { dg-final { scan-assembler "fldd.+ \\\[r1, #1016\\\]" } } */
+  /* { dg-final { scan-assembler "fldd.+ \\\[r1, #-1016\\\]" } } */
+  /* { dg-final { scan-assembler "fstd.+ \\\[r1, #256\\\]" } } */
+  d[32] = d[127] + d[-127];
+}