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

+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

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)

gcc/testsuite/ChangeLog

+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.

gcc/testsuite/gcc.target/arm/pr45094.c

+/* { 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;
+}