1 files changed, 64 insertions, 0 deletions

diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.6/pr47551.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/pr47551.patch
new file mode 100644
index 000000000..2c6bcda9b
--- /dev/null
+++ b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/pr47551.patch
@@ -0,0 +1,64 @@
+Upstream-Status:Backport
+2011-02-02  Richard Sandiford  <richard.sandiford@linaro.org>
+
+        gcc/
+        PR target/47551
+        * config/arm/arm.c (coproc_secondary_reload_class): Handle
+        structure modes.  Don't check neon_vector_mem_operand for
+        vector or structure modes.
+
+        gcc/testsuite/
+        PR target/47551
+        * gcc.target/arm/neon-modes-2.c: New test.
+
+=== modified file 'gcc/config/arm/arm.c'
+--- old/gcc/config/arm/arm.c    2011-02-21 14:04:51 +0000
++++ new/gcc/config/arm/arm.c    2011-03-02 11:38:43 +0000
+@@ -9139,11 +9139,14 @@
+       return GENERAL_REGS;
+     }
+ 
++  /* The neon move patterns handle all legitimate vector and struct
++     addresses.  */
+   if (TARGET_NEON
++      && MEM_P (x)
+       && (GET_MODE_CLASS (mode) == MODE_VECTOR_INT
+-          || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT)
+-      && neon_vector_mem_operand (x, 0))
+-     return NO_REGS;
++         || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT
++         || VALID_NEON_STRUCT_MODE (mode)))
++    return NO_REGS;
+ 
+   if (arm_coproc_mem_operand (x, wb) || s_register_operand (x, mode))
+     return NO_REGS;
+
+=== added file 'gcc/testsuite/gcc.target/arm/neon-modes-2.c'
+--- old/gcc/testsuite/gcc.target/arm/neon-modes-2.c     1970-01-01 00:00:00 +0000
++++ new/gcc/testsuite/gcc.target/arm/neon-modes-2.c     2011-02-02 10:02:45 +0000
+@@ -0,0 +1,24 @@
++/* { dg-do compile } */
++/* { dg-require-effective-target arm_neon_ok } */
++/* { dg-options "-O1" } */
++/* { dg-add-options arm_neon } */
++
++#include "arm_neon.h"
++
++#define SETUP(A) x##A = vld3_u32 (ptr + A * 0x20)
++#define MODIFY(A) x##A = vld3_lane_u32 (ptr + A * 0x20 + 0x10, x##A, 1)
++#define STORE(A) vst3_u32 (ptr + A * 0x20, x##A)
++
++#define MANY(A) A (0), A (1), A (2), A (3), A (4), A (5)
++
++void
++bar (uint32_t *ptr, int y)
++{
++  uint32x2x3_t MANY (SETUP);
++  int *x = __builtin_alloca (y);
++  int z[0x1000];
++  foo (x, z);
++  MANY (MODIFY);
++  foo (x, z);
++  MANY (STORE);
++}
+