diff mbox

[ARM] Fix PR45094

Message ID 20100801083614.GA2569@qiyaows
State New
Headers show

Commit Message

Yao Qi Aug. 1, 2010, 8:36 a.m. UTC
This patch fixes generated wrong instructions reported in PR45094,
which is caused by typo.

Tested on arm-unknown-linux-gnueabi, fixes the new test.

OK for mainline?

ChangeLog:
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.

Comments

John Tytgat Aug. 1, 2010, 12:43 p.m. UTC | #1
In message <20100801083614.GA2569@qiyaows>
          Yao Qi <yao@codesourcery.com> wrote:

> This patch fixes generated wrong instructions reported in PR45094,
> which is caused by typo.
> 
> Tested on arm-unknown-linux-gnueabi, fixes the new test.
> [...]

> Index: config/arm/arm.c
> ===================================================================
> --- config/arm/arm.c	(revision 162792)
> +++ config/arm/arm.c	(working copy)
> @@ -12570,13 +12570,13 @@
>  	    {
>  	      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 ("strr%?\t%H0, [%1, #4]", otherops);
                                      ^^^

Typo (one 'r') ?

>  		}
>  	      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)

John.
diff mbox

Patch

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.

Index: config/arm/arm.c
===================================================================
--- config/arm/arm.c	(revision 162792)
+++ config/arm/arm.c	(working copy)
@@ -12570,13 +12570,13 @@ 
 	    {
 	      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 ("strr%?\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)
Index: testsuite/gcc.target/arm/pr45094.c
===================================================================
--- testsuite/gcc.target/arm/pr45094.c	(revision 0)
+++ testsuite/gcc.target/arm/pr45094.c	(revision 0)
@@ -0,0 +1,20 @@ 
+/* { dg-do compile } */
+/* { dg-options "-O2 -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp" } */
+
+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);
+    return !buffer[0];
+}
+
+/* { dg-final { scan-assembler "str" } } */