From 8019fcfb557001db4ef756511b6ff49f21392724 Mon Sep 17 00:00:00 2001
From: Yao Qi <yao@codesourcery.com>
Date: Wed, 18 Aug 2010 12:33:43 +0000
Subject: [PATCH] re PR target/45094 ([arm] wrong instructions for dword move
 in some cases)

gcc/
        PR target/45094
        * config/arm/arm.c (output_move_double): Fix typo generating
        instructions ('ldr'->'str').

gcc/testsuite/

        PR target/45094
        * gcc.target/arm/pr45094.c: New test.

From-SVN: r163338
---
 gcc/ChangeLog                          |  6 ++++++
 gcc/config/arm/arm.c                   |  8 ++++----
 gcc/testsuite/ChangeLog                |  5 +++++
 gcc/testsuite/gcc.target/arm/pr45094.c | 27 ++++++++++++++++++++++++++
 4 files changed, 42 insertions(+), 4 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/arm/pr45094.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c16adad4bd7..124b3cb38c3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-08-18  Yao Qi  <yao@codesourcery.com>
+
+	PR target/45094
+	* config/arm/arm.c (output_move_double): Fix typo generating 
+	instructions ('ldr'->'str').
+
 2010-08-18  Maxim Kuvyrkov  <maxim@codesourcery.com>
 
 	PR rtl-optimization/42575
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 3dd73e8c0d9..f6148a7309d 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -12944,13 +12944,13 @@ output_move_double (rtx *operands)
 	    {
 	      if (GET_CODE (XEXP (operands[0], 0)) == PRE_MODIFY)
 		{
-		  output_asm_insn ("ldr%?\t%0, [%1, %2]!", otherops);
-		  output_asm_insn ("ldr%?\t%H0, [%1, #4]", otherops);
+		  output_asm_insn ("str%?\t%0, [%1, %2]!", otherops);
+		  output_asm_insn ("str%?\t%H0, [%1, #4]", otherops);
 		}
 	      else
 		{
-		  output_asm_insn ("ldr%?\t%H0, [%1, #4]", otherops);
-		  output_asm_insn ("ldr%?\t%0, [%1], %2", otherops);
+		  output_asm_insn ("str%?\t%H0, [%1, #4]", otherops);
+		  output_asm_insn ("str%?\t%0, [%1], %2", otherops);
 		}
 	    }
 	  else if (GET_CODE (XEXP (operands[0], 0)) == PRE_MODIFY)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 793018363ab..2e2912e79e8 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-08-18  Yao Qi  <yao@codesourcery.com>
+
+	PR target/45094
+	* gcc.target/arm/pr45094.c: New test.
+
 2010-08-18  Maxim Kuvyrkov  <maxim@codesourcery.com>
 
 	* gcc.target/arm/mla-1.c: Use thumb-friendly architecture.
diff --git a/gcc/testsuite/gcc.target/arm/pr45094.c b/gcc/testsuite/gcc.target/arm/pr45094.c
new file mode 100644
index 00000000000..05f16d80279
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/pr45094.c
@@ -0,0 +1,27 @@
+/* { dg-do run } */
+/* { dg-require-effective-target arm_neon_hw } */
+/* { dg-options "-O2 -mcpu=cortex-a8" } */
+/* { dg-add-options arm_neon } */
+
+#include <stdlib.h>
+
+long long buffer[32];
+
+void __attribute__((noinline)) f(long long *p, int n)
+{
+  while (--n >= 0)
+    {
+      *p = 1;
+      p += 32;
+    }
+}
+
+int main(void)
+{
+  f(buffer, 1);
+  
+  if (!buffer[0])
+    abort();
+
+  return 0;
+}