1 files changed, 0 insertions, 515 deletions

diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106841.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106841.patch
deleted file mode 100644
index d72446919f..0000000000
--- a/toolchain-layer/recipes-devtools/gcc/gcc-4.6/linaro/gcc-4.6-linaro-r106841.patch
+++ /dev/null
@@ -1,515 +0,0 @@
-2011-11-21  Michael Hope  <michael.hope@linaro.org>
-
-        Backport from mainline r180131:
-
-        2011-10-18  Julian Brown  <julian@codesourcery.com>
-
-        gcc/
-        * config/arm/arm.c (arm_block_move_unaligned_straight)
-        (arm_adjust_block_mem, arm_block_move_unaligned_loop)
-        (arm_movmemqi_unaligned): New.
-        (arm_gen_movmemqi): Support unaligned block copies.
-
-        gcc/testsuite/
-        * lib/target-supports.exp (check_effective_target_arm_unaligned): New.
-        * gcc.target/arm/unaligned-memcpy-1.c: New.
-        * gcc.target/arm/unaligned-memcpy-2.c: New.
-        * gcc.target/arm/unaligned-memcpy-3.c: New.
-        * gcc.target/arm/unaligned-memcpy-4.c: New.
-
-        2011-09-15  James Greenhalgh  <james.greenhalgh@arm.com>
-
-        gcc/
-        * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): New builtin macro.
-
-=== modified file 'gcc/config/arm/arm.c'
---- old/gcc/config/arm/arm.c    2011-10-26 11:38:30 +0000
-+++ new/gcc/config/arm/arm.c    2011-11-21 01:45:54 +0000
-@@ -10803,6 +10803,335 @@
-   return true;
- }
- 
-+/* Copy a block of memory using plain ldr/str/ldrh/strh instructions, to permit
-+   unaligned copies on processors which support unaligned semantics for those
-+   instructions.  INTERLEAVE_FACTOR can be used to attempt to hide load latency
-+   (using more registers) by doing e.g. load/load/store/store for a factor of 2.
-+   An interleave factor of 1 (the minimum) will perform no interleaving. 
-+   Load/store multiple are used for aligned addresses where possible.  */
-+
-+static void
-+arm_block_move_unaligned_straight (rtx dstbase, rtx srcbase,
-+                                  HOST_WIDE_INT length,
-+                                  unsigned int interleave_factor)
-+{
-+  rtx *regs = XALLOCAVEC (rtx, interleave_factor);
-+  int *regnos = XALLOCAVEC (int, interleave_factor);
-+  HOST_WIDE_INT block_size_bytes = interleave_factor * UNITS_PER_WORD;
-+  HOST_WIDE_INT i, j;
-+  HOST_WIDE_INT remaining = length, words;
-+  rtx halfword_tmp = NULL, byte_tmp = NULL;
-+  rtx dst, src;
-+  bool src_aligned = MEM_ALIGN (srcbase) >= BITS_PER_WORD;
-+  bool dst_aligned = MEM_ALIGN (dstbase) >= BITS_PER_WORD;
-+  HOST_WIDE_INT srcoffset, dstoffset;
-+  HOST_WIDE_INT src_autoinc, dst_autoinc;
-+  rtx mem, addr;
-+  
-+  gcc_assert (1 <= interleave_factor && interleave_factor <= 4);
-+  
-+  /* Use hard registers if we have aligned source or destination so we can use
-+     load/store multiple with contiguous registers.  */
-+  if (dst_aligned || src_aligned)
-+    for (i = 0; i < interleave_factor; i++)
-+      regs[i] = gen_rtx_REG (SImode, i);
-+  else
-+    for (i = 0; i < interleave_factor; i++)
-+      regs[i] = gen_reg_rtx (SImode);
-+
-+  dst = copy_addr_to_reg (XEXP (dstbase, 0));
-+  src = copy_addr_to_reg (XEXP (srcbase, 0));
-+
-+  srcoffset = dstoffset = 0;
-+  
-+  /* Calls to arm_gen_load_multiple and arm_gen_store_multiple update SRC/DST.
-+     For copying the last bytes we want to subtract this offset again.  */
-+  src_autoinc = dst_autoinc = 0;
-+
-+  for (i = 0; i < interleave_factor; i++)
-+    regnos[i] = i;
-+
-+  /* Copy BLOCK_SIZE_BYTES chunks.  */
-+
-+  for (i = 0; i + block_size_bytes <= length; i += block_size_bytes)
-+    {
-+      /* Load words.  */
-+      if (src_aligned && interleave_factor > 1)
-+       {
-+         emit_insn (arm_gen_load_multiple (regnos, interleave_factor, src,
-+                                           TRUE, srcbase, &srcoffset));
-+         src_autoinc += UNITS_PER_WORD * interleave_factor;
-+       }
-+      else
-+       {
-+         for (j = 0; j < interleave_factor; j++)
-+           {
-+             addr = plus_constant (src, srcoffset + j * UNITS_PER_WORD
-+                                        - src_autoinc);
-+             mem = adjust_automodify_address (srcbase, SImode, addr,
-+                                              srcoffset + j * UNITS_PER_WORD);
-+             emit_insn (gen_unaligned_loadsi (regs[j], mem));
-+           }
-+         srcoffset += block_size_bytes;
-+       }
-+
-+      /* Store words.  */
-+      if (dst_aligned && interleave_factor > 1)
-+       {
-+         emit_insn (arm_gen_store_multiple (regnos, interleave_factor, dst,
-+                                            TRUE, dstbase, &dstoffset));
-+         dst_autoinc += UNITS_PER_WORD * interleave_factor;
-+       }
-+      else
-+       {
-+         for (j = 0; j < interleave_factor; j++)
-+           {
-+             addr = plus_constant (dst, dstoffset + j * UNITS_PER_WORD
-+                                        - dst_autoinc);
-+             mem = adjust_automodify_address (dstbase, SImode, addr,
-+                                              dstoffset + j * UNITS_PER_WORD);
-+             emit_insn (gen_unaligned_storesi (mem, regs[j]));
-+           }
-+         dstoffset += block_size_bytes;
-+       }
-+
-+      remaining -= block_size_bytes;
-+    }
-+  
-+  /* Copy any whole words left (note these aren't interleaved with any
-+     subsequent halfword/byte load/stores in the interests of simplicity).  */
-+  
-+  words = remaining / UNITS_PER_WORD;
-+
-+  gcc_assert (words < interleave_factor);
-+  
-+  if (src_aligned && words > 1)
-+    {
-+      emit_insn (arm_gen_load_multiple (regnos, words, src, TRUE, srcbase,
-+                                       &srcoffset));
-+      src_autoinc += UNITS_PER_WORD * words;
-+    }
-+  else
-+    {
-+      for (j = 0; j < words; j++)
-+       {
-+         addr = plus_constant (src,
-+                               srcoffset + j * UNITS_PER_WORD - src_autoinc);
-+         mem = adjust_automodify_address (srcbase, SImode, addr,
-+                                          srcoffset + j * UNITS_PER_WORD);
-+         emit_insn (gen_unaligned_loadsi (regs[j], mem));
-+       }
-+      srcoffset += words * UNITS_PER_WORD;
-+    }
-+
-+  if (dst_aligned && words > 1)
-+    {
-+      emit_insn (arm_gen_store_multiple (regnos, words, dst, TRUE, dstbase,
-+                                        &dstoffset));
-+      dst_autoinc += words * UNITS_PER_WORD;
-+    }
-+  else
-+    {
-+      for (j = 0; j < words; j++)
-+       {
-+         addr = plus_constant (dst,
-+                               dstoffset + j * UNITS_PER_WORD - dst_autoinc);
-+         mem = adjust_automodify_address (dstbase, SImode, addr,
-+                                          dstoffset + j * UNITS_PER_WORD);
-+         emit_insn (gen_unaligned_storesi (mem, regs[j]));
-+       }
-+      dstoffset += words * UNITS_PER_WORD;
-+    }
-+
-+  remaining -= words * UNITS_PER_WORD;
-+  
-+  gcc_assert (remaining < 4);
-+  
-+  /* Copy a halfword if necessary.  */
-+  
-+  if (remaining >= 2)
-+    {
-+      halfword_tmp = gen_reg_rtx (SImode);
-+
-+      addr = plus_constant (src, srcoffset - src_autoinc);
-+      mem = adjust_automodify_address (srcbase, HImode, addr, srcoffset);
-+      emit_insn (gen_unaligned_loadhiu (halfword_tmp, mem));
-+
-+      /* Either write out immediately, or delay until we've loaded the last
-+        byte, depending on interleave factor.  */
-+      if (interleave_factor == 1)
-+       {
-+         addr = plus_constant (dst, dstoffset - dst_autoinc);
-+         mem = adjust_automodify_address (dstbase, HImode, addr, dstoffset);
-+         emit_insn (gen_unaligned_storehi (mem,
-+                      gen_lowpart (HImode, halfword_tmp)));
-+         halfword_tmp = NULL;
-+         dstoffset += 2;
-+       }
-+
-+      remaining -= 2;
-+      srcoffset += 2;
-+    }
-+  
-+  gcc_assert (remaining < 2);
-+  
-+  /* Copy last byte.  */
-+  
-+  if ((remaining & 1) != 0)
-+    {
-+      byte_tmp = gen_reg_rtx (SImode);
-+
-+      addr = plus_constant (src, srcoffset - src_autoinc);
-+      mem = adjust_automodify_address (srcbase, QImode, addr, srcoffset);
-+      emit_move_insn (gen_lowpart (QImode, byte_tmp), mem);
-+
-+      if (interleave_factor == 1)
-+       {
-+         addr = plus_constant (dst, dstoffset - dst_autoinc);
-+         mem = adjust_automodify_address (dstbase, QImode, addr, dstoffset);
-+         emit_move_insn (mem, gen_lowpart (QImode, byte_tmp));
-+         byte_tmp = NULL;
-+         dstoffset++;
-+       }
-+
-+      remaining--;
-+      srcoffset++;
-+    }
-+  
-+  /* Store last halfword if we haven't done so already.  */
-+  
-+  if (halfword_tmp)
-+    {
-+      addr = plus_constant (dst, dstoffset - dst_autoinc);
-+      mem = adjust_automodify_address (dstbase, HImode, addr, dstoffset);
-+      emit_insn (gen_unaligned_storehi (mem,
-+                  gen_lowpart (HImode, halfword_tmp)));
-+      dstoffset += 2;
-+    }
-+
-+  /* Likewise for last byte.  */
-+
-+  if (byte_tmp)
-+    {
-+      addr = plus_constant (dst, dstoffset - dst_autoinc);
-+      mem = adjust_automodify_address (dstbase, QImode, addr, dstoffset);
-+      emit_move_insn (mem, gen_lowpart (QImode, byte_tmp));
-+      dstoffset++;
-+    }
-+  
-+  gcc_assert (remaining == 0 && srcoffset == dstoffset);
-+}
-+
-+/* From mips_adjust_block_mem:
-+
-+   Helper function for doing a loop-based block operation on memory
-+   reference MEM.  Each iteration of the loop will operate on LENGTH
-+   bytes of MEM.
-+
-+   Create a new base register for use within the loop and point it to
-+   the start of MEM.  Create a new memory reference that uses this
-+   register.  Store them in *LOOP_REG and *LOOP_MEM respectively.  */
-+
-+static void
-+arm_adjust_block_mem (rtx mem, HOST_WIDE_INT length, rtx *loop_reg,
-+                     rtx *loop_mem)
-+{
-+  *loop_reg = copy_addr_to_reg (XEXP (mem, 0));
-+  
-+  /* Although the new mem does not refer to a known location,
-+     it does keep up to LENGTH bytes of alignment.  */
-+  *loop_mem = change_address (mem, BLKmode, *loop_reg);
-+  set_mem_align (*loop_mem, MIN (MEM_ALIGN (mem), length * BITS_PER_UNIT));
-+}
-+
-+/* From mips_block_move_loop:
-+
-+   Move LENGTH bytes from SRC to DEST using a loop that moves BYTES_PER_ITER
-+   bytes at a time.  LENGTH must be at least BYTES_PER_ITER.  Assume that
-+   the memory regions do not overlap.  */
-+
-+static void
-+arm_block_move_unaligned_loop (rtx dest, rtx src, HOST_WIDE_INT length,
-+                              unsigned int interleave_factor,
-+                              HOST_WIDE_INT bytes_per_iter)
-+{
-+  rtx label, src_reg, dest_reg, final_src, test;
-+  HOST_WIDE_INT leftover;
-+  
-+  leftover = length % bytes_per_iter;
-+  length -= leftover;
-+  
-+  /* Create registers and memory references for use within the loop.  */
-+  arm_adjust_block_mem (src, bytes_per_iter, &src_reg, &src);
-+  arm_adjust_block_mem (dest, bytes_per_iter, &dest_reg, &dest);
-+  
-+  /* Calculate the value that SRC_REG should have after the last iteration of
-+     the loop.  */
-+  final_src = expand_simple_binop (Pmode, PLUS, src_reg, GEN_INT (length),
-+                                  0, 0, OPTAB_WIDEN);
-+
-+  /* Emit the start of the loop.  */
-+  label = gen_label_rtx ();
-+  emit_label (label);
-+  
-+  /* Emit the loop body.  */
-+  arm_block_move_unaligned_straight (dest, src, bytes_per_iter,
-+                                    interleave_factor);
-+
-+  /* Move on to the next block.  */
-+  emit_move_insn (src_reg, plus_constant (src_reg, bytes_per_iter));
-+  emit_move_insn (dest_reg, plus_constant (dest_reg, bytes_per_iter));
-+  
-+  /* Emit the loop condition.  */
-+  test = gen_rtx_NE (VOIDmode, src_reg, final_src);
-+  emit_jump_insn (gen_cbranchsi4 (test, src_reg, final_src, label));
-+  
-+  /* Mop up any left-over bytes.  */
-+  if (leftover)
-+    arm_block_move_unaligned_straight (dest, src, leftover, interleave_factor);
-+}
-+
-+/* Emit a block move when either the source or destination is unaligned (not
-+   aligned to a four-byte boundary).  This may need further tuning depending on
-+   core type, optimize_size setting, etc.  */
-+
-+static int
-+arm_movmemqi_unaligned (rtx *operands)
-+{
-+  HOST_WIDE_INT length = INTVAL (operands[2]);
-+  
-+  if (optimize_size)
-+    {
-+      bool src_aligned = MEM_ALIGN (operands[1]) >= BITS_PER_WORD;
-+      bool dst_aligned = MEM_ALIGN (operands[0]) >= BITS_PER_WORD;
-+      /* Inlined memcpy using ldr/str/ldrh/strh can be quite big: try to limit
-+        size of code if optimizing for size.  We'll use ldm/stm if src_aligned
-+        or dst_aligned though: allow more interleaving in those cases since the
-+        resulting code can be smaller.  */
-+      unsigned int interleave_factor = (src_aligned || dst_aligned) ? 2 : 1;
-+      HOST_WIDE_INT bytes_per_iter = (src_aligned || dst_aligned) ? 8 : 4;
-+      
-+      if (length > 12)
-+       arm_block_move_unaligned_loop (operands[0], operands[1], length,
-+                                      interleave_factor, bytes_per_iter);
-+      else
-+       arm_block_move_unaligned_straight (operands[0], operands[1], length,
-+                                          interleave_factor);
-+    }
-+  else
-+    {
-+      /* Note that the loop created by arm_block_move_unaligned_loop may be
-+        subject to loop unrolling, which makes tuning this condition a little
-+        redundant.  */
-+      if (length > 32)
-+       arm_block_move_unaligned_loop (operands[0], operands[1], length, 4, 16);
-+      else
-+       arm_block_move_unaligned_straight (operands[0], operands[1], length, 4);
-+    }
-+  
-+  return 1;
-+}
-+
- int
- arm_gen_movmemqi (rtx *operands)
- {
-@@ -10815,8 +11144,13 @@
- 
-   if (GET_CODE (operands[2]) != CONST_INT
-       || GET_CODE (operands[3]) != CONST_INT
--      || INTVAL (operands[2]) > 64
--      || INTVAL (operands[3]) & 3)
-+      || INTVAL (operands[2]) > 64)
-+    return 0;
-+
-+  if (unaligned_access && (INTVAL (operands[3]) & 3) != 0)
-+    return arm_movmemqi_unaligned (operands);
-+
-+  if (INTVAL (operands[3]) & 3)
-     return 0;
- 
-   dstbase = operands[0];
-
-=== modified file 'gcc/config/arm/arm.h'
---- old/gcc/config/arm/arm.h    2011-10-19 17:01:50 +0000
-+++ new/gcc/config/arm/arm.h    2011-11-21 01:45:54 +0000
-@@ -47,6 +47,8 @@
-     {                                                  \
-        if (TARGET_DSP_MULTIPLY)                        \
-           builtin_define ("__ARM_FEATURE_DSP");        \
-+       if (unaligned_access)                           \
-+         builtin_define ("__ARM_FEATURE_UNALIGNED");   \
-        /* Define __arm__ even when in thumb mode, for  \
-           consistency with armcc.  */                  \
-        builtin_define ("__arm__");                     \
-
-=== added file 'gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c'
---- old/gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c       1970-01-01 00:00:00 +0000
-+++ new/gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c       2011-10-19 22:56:19 +0000
-@@ -0,0 +1,19 @@
-+/* { dg-do compile } */
-+/* { dg-require-effective-target arm_unaligned } */
-+/* { dg-options "-O2" } */
-+
-+#include <string.h>
-+
-+void unknown_alignment (char *dest, char *src)
-+{
-+  memcpy (dest, src, 15);
-+}
-+
-+/* We should see three unaligned word loads and store pairs, one unaligned
-+   ldrh/strh pair, and an ldrb/strb pair.  Sanity check that.  */
-+
-+/* { dg-final { scan-assembler-times "@ unaligned" 8 } } */
-+/* { dg-final { scan-assembler-times "ldrh" 1 } } */
-+/* { dg-final { scan-assembler-times "strh" 1 } } */
-+/* { dg-final { scan-assembler-times "ldrb" 1 } } */
-+/* { dg-final { scan-assembler-times "strb" 1 } } */
-
-=== added file 'gcc/testsuite/gcc.target/arm/unaligned-memcpy-2.c'
---- old/gcc/testsuite/gcc.target/arm/unaligned-memcpy-2.c       1970-01-01 00:00:00 +0000
-+++ new/gcc/testsuite/gcc.target/arm/unaligned-memcpy-2.c       2011-10-19 22:56:19 +0000
-@@ -0,0 +1,21 @@
-+/* { dg-do compile } */
-+/* { dg-require-effective-target arm_unaligned } */
-+/* { dg-options "-O2" } */
-+
-+#include <string.h>
-+
-+char dest[16];
-+
-+void aligned_dest (char *src)
-+{
-+  memcpy (dest, src, 15);
-+}
-+
-+/* Expect a multi-word store for the main part of the copy, but subword
-+   loads/stores for the remainder.  */
-+
-+/* { dg-final { scan-assembler-times "stmia" 1 } } */
-+/* { dg-final { scan-assembler-times "ldrh" 1 } } */
-+/* { dg-final { scan-assembler-times "strh" 1 } } */
-+/* { dg-final { scan-assembler-times "ldrb" 1 } } */
-+/* { dg-final { scan-assembler-times "strb" 1 } } */
-
-=== added file 'gcc/testsuite/gcc.target/arm/unaligned-memcpy-3.c'
---- old/gcc/testsuite/gcc.target/arm/unaligned-memcpy-3.c       1970-01-01 00:00:00 +0000
-+++ new/gcc/testsuite/gcc.target/arm/unaligned-memcpy-3.c       2011-10-19 22:56:19 +0000
-@@ -0,0 +1,21 @@
-+/* { dg-do compile } */
-+/* { dg-require-effective-target arm_unaligned } */
-+/* { dg-options "-O2" } */
-+
-+#include <string.h>
-+
-+char src[16];
-+
-+void aligned_src (char *dest)
-+{
-+  memcpy (dest, src, 15);
-+}
-+
-+/* Expect a multi-word load for the main part of the copy, but subword
-+   loads/stores for the remainder.  */
-+
-+/* { dg-final { scan-assembler-times "ldmia" 1 } } */
-+/* { dg-final { scan-assembler-times "ldrh" 1 } } */
-+/* { dg-final { scan-assembler-times "strh" 1 } } */
-+/* { dg-final { scan-assembler-times "ldrb" 1 } } */
-+/* { dg-final { scan-assembler-times "strb" 1 } } */
-
-=== added file 'gcc/testsuite/gcc.target/arm/unaligned-memcpy-4.c'
---- old/gcc/testsuite/gcc.target/arm/unaligned-memcpy-4.c       1970-01-01 00:00:00 +0000
-+++ new/gcc/testsuite/gcc.target/arm/unaligned-memcpy-4.c       2011-10-19 22:56:19 +0000
-@@ -0,0 +1,18 @@
-+/* { dg-do compile } */
-+/* { dg-require-effective-target arm_unaligned } */
-+/* { dg-options "-O2" } */
-+
-+#include <string.h>
-+
-+char src[16];
-+char dest[16];
-+
-+void aligned_both (void)
-+{
-+  memcpy (dest, src, 15);
-+}
-+
-+/* We know both src and dest to be aligned: expect multiword loads/stores.  */
-+
-+/* { dg-final { scan-assembler-times "ldmia" 1 } } */
-+/* { dg-final { scan-assembler-times "stmia" 1 } } */
-
-=== modified file 'gcc/testsuite/lib/target-supports.exp'
---- old/gcc/testsuite/lib/target-supports.exp   2011-10-23 13:33:07 +0000
-+++ new/gcc/testsuite/lib/target-supports.exp   2011-11-21 01:45:54 +0000
-@@ -1894,6 +1894,18 @@
-     }]
- }
- 
-+# Return 1 if this is an ARM target that supports unaligned word/halfword
-+# load/store instructions.
-+
-+proc check_effective_target_arm_unaligned { } {
-+    return [check_no_compiler_messages arm_unaligned assembly {
-+       #ifndef __ARM_FEATURE_UNALIGNED
-+       #error no unaligned support
-+       #endif
-+       int i;
-+    }]
-+}
-+
- # Add the options needed for NEON.  We need either -mfloat-abi=softfp
- # or -mfloat-abi=hard, but if one is already specified by the
- # multilib, use it.  Similarly, if a -mfpu option already enables
-