1 files changed, 94 insertions, 0 deletions
diff --git a/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99421.patch b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99421.patch
new file mode 100644
index 0000000000..3a45ee5026
--- /dev/null
+++ b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99421.patch
@@ -0,0 +1,94 @@
+2010-10-20  Nathan Froyd  <froydnj@codesourcery.com>
+        Issue #9781
+        Backport from mainline:
+        gcc/
+        2010-10-20  Nathan Froyd  <froydnj@codesourcery.com>
+        * ifcvt.c (noce_emit_cmove): If both of the values are SUBREGs, try
+        emitting the conditional move in the inner mode of the SUBREG.
+=== modified file 'gcc/ifcvt.c'
+--- old/gcc/ifcvt.c     2010-10-15 10:01:07 +0000
+++ new/gcc/ifcvt.c     2010-11-04 12:11:15 +0000
+@@ -1338,6 +1338,9 @@
+ noce_emit_cmove (struct noce_if_info *if_info, rtx x, enum rtx_code code,
+                 rtx cmp_a, rtx cmp_b, rtx vfalse, rtx vtrue)
+ {
+  rtx target;
+  int unsignedp;
+
+   /* If earliest == jump, try to build the cmove insn directly.
+      This is helpful when combine has created some complex condition
+      (like for alpha's cmovlbs) that we can't hope to regenerate
+@@ -1372,10 +1375,62 @@
+     return NULL_RTX;
+ 
+ #if HAVE_conditional_move
+-  return emit_conditional_move (x, code, cmp_a, cmp_b, VOIDmode,
+-                               vtrue, vfalse, GET_MODE (x),
+-                               (code == LTU || code == GEU
+-                                || code == LEU || code == GTU));
+  unsignedp = (code == LTU || code == GEU
+              || code == LEU || code == GTU);
+
+  target = emit_conditional_move (x, code, cmp_a, cmp_b, VOIDmode,
+                                 vtrue, vfalse, GET_MODE (x),
+                                 unsignedp);
+  if (target)
+    return target;
+
+  /* We might be faced with a situation like:
+
+     x = (reg:M TARGET)
+     vtrue = (subreg:M (reg:N VTRUE) BYTE)
+     vfalse = (subreg:M (reg:N VFALSE) BYTE)
+
+     We can't do a conditional move in mode M, but it's possible that we
+     could do a conditional move in mode N instead and take a subreg of
+     the result.
+
+     If we can't create new pseudos, though, don't bother.  */
+  if (reload_completed)
+    return NULL_RTX;
+
+  if (GET_CODE (vtrue) == SUBREG && GET_CODE (vfalse) == SUBREG)
+    {
+      rtx reg_vtrue = SUBREG_REG (vtrue);
+      rtx reg_vfalse = SUBREG_REG (vfalse);
+      unsigned int byte_vtrue = SUBREG_BYTE (vtrue);
+      unsigned int byte_vfalse = SUBREG_BYTE (vfalse);
+      rtx promoted_target;
+
+      if (GET_MODE (reg_vtrue) != GET_MODE (reg_vfalse)
+         || byte_vtrue != byte_vfalse
+         || (SUBREG_PROMOTED_VAR_P (vtrue)
+             != SUBREG_PROMOTED_VAR_P (vfalse))
+         || (SUBREG_PROMOTED_UNSIGNED_P (vtrue)
+             != SUBREG_PROMOTED_UNSIGNED_P (vfalse)))
+       return NULL_RTX;
+
+      promoted_target = gen_reg_rtx (GET_MODE (reg_vtrue));
+
+      target = emit_conditional_move (promoted_target, code, cmp_a, cmp_b,
+                                     VOIDmode, reg_vtrue, reg_vfalse,
+                                     GET_MODE (reg_vtrue), unsignedp);
+      /* Nope, couldn't do it in that mode either.  */
+      if (!target)
+       return NULL_RTX;
+
+      target = gen_rtx_SUBREG (GET_MODE (vtrue), promoted_target, byte_vtrue);
+      SUBREG_PROMOTED_VAR_P (target) = SUBREG_PROMOTED_VAR_P (vtrue);
+      SUBREG_PROMOTED_UNSIGNED_SET (target, SUBREG_PROMOTED_UNSIGNED_P (vtrue));
+      emit_move_insn (x, target);
+      return x;
+    }
+  else
+    return NULL_RTX;
+ #else
+   /* We'll never get here, as noce_process_if_block doesn't call the
+      functions involved.  Ifdef code, however, should be discouraged

diff --git a/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99421.patch b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99421.patch new file mode 100644 index 0000000000..3a45ee5026 --- /dev/null +++ b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99421.patch
@@ -0,0 +1,94 @@
	1	2010-10-20 Nathan Froyd <froydnj@codesourcery.com>
	2
	3	Issue #9781
	4
	5	Backport from mainline:
	6
	7	gcc/
	8	2010-10-20 Nathan Froyd <froydnj@codesourcery.com>
	9
	10	* ifcvt.c (noce_emit_cmove): If both of the values are SUBREGs, try
	11	emitting the conditional move in the inner mode of the SUBREG.
	12
	13
	14	=== modified file 'gcc/ifcvt.c'
	15	--- old/gcc/ifcvt.c 2010-10-15 10:01:07 +0000
	16	+++ new/gcc/ifcvt.c 2010-11-04 12:11:15 +0000
	17	@@ -1338,6 +1338,9 @@
	18	noce_emit_cmove (struct noce_if_info *if_info, rtx x, enum rtx_code code,
	19	rtx cmp_a, rtx cmp_b, rtx vfalse, rtx vtrue)
	20	{
	21	+ rtx target;
	22	+ int unsignedp;
	23	+
	24	/* If earliest == jump, try to build the cmove insn directly.
	25	This is helpful when combine has created some complex condition
	26	(like for alpha's cmovlbs) that we can't hope to regenerate
	27	@@ -1372,10 +1375,62 @@
	28	return NULL_RTX;
	29
	30	#if HAVE_conditional_move
	31	- return emit_conditional_move (x, code, cmp_a, cmp_b, VOIDmode,
	32	- vtrue, vfalse, GET_MODE (x),
	33	- (code == LTU \|\| code == GEU
	34	- \|\| code == LEU \|\| code == GTU));
	35	+ unsignedp = (code == LTU \|\| code == GEU
	36	+ \|\| code == LEU \|\| code == GTU);
	37	+
	38	+ target = emit_conditional_move (x, code, cmp_a, cmp_b, VOIDmode,
	39	+ vtrue, vfalse, GET_MODE (x),
	40	+ unsignedp);
	41	+ if (target)
	42	+ return target;
	43	+
	44	+ /* We might be faced with a situation like:
	45	+
	46	+ x = (reg:M TARGET)
	47	+ vtrue = (subreg:M (reg:N VTRUE) BYTE)
	48	+ vfalse = (subreg:M (reg:N VFALSE) BYTE)
	49	+
	50	+ We can't do a conditional move in mode M, but it's possible that we
	51	+ could do a conditional move in mode N instead and take a subreg of
	52	+ the result.
	53	+
	54	+ If we can't create new pseudos, though, don't bother. */
	55	+ if (reload_completed)
	56	+ return NULL_RTX;
	57	+
	58	+ if (GET_CODE (vtrue) == SUBREG && GET_CODE (vfalse) == SUBREG)
	59	+ {
	60	+ rtx reg_vtrue = SUBREG_REG (vtrue);
	61	+ rtx reg_vfalse = SUBREG_REG (vfalse);
	62	+ unsigned int byte_vtrue = SUBREG_BYTE (vtrue);
	63	+ unsigned int byte_vfalse = SUBREG_BYTE (vfalse);
	64	+ rtx promoted_target;
	65	+
	66	+ if (GET_MODE (reg_vtrue) != GET_MODE (reg_vfalse)
	67	+ \|\| byte_vtrue != byte_vfalse
	68	+ \|\| (SUBREG_PROMOTED_VAR_P (vtrue)
	69	+ != SUBREG_PROMOTED_VAR_P (vfalse))
	70	+ \|\| (SUBREG_PROMOTED_UNSIGNED_P (vtrue)
	71	+ != SUBREG_PROMOTED_UNSIGNED_P (vfalse)))
	72	+ return NULL_RTX;
	73	+
	74	+ promoted_target = gen_reg_rtx (GET_MODE (reg_vtrue));
	75	+
	76	+ target = emit_conditional_move (promoted_target, code, cmp_a, cmp_b,
	77	+ VOIDmode, reg_vtrue, reg_vfalse,
	78	+ GET_MODE (reg_vtrue), unsignedp);
	79	+ /* Nope, couldn't do it in that mode either. */
	80	+ if (!target)
	81	+ return NULL_RTX;
	82	+
	83	+ target = gen_rtx_SUBREG (GET_MODE (vtrue), promoted_target, byte_vtrue);
	84	+ SUBREG_PROMOTED_VAR_P (target) = SUBREG_PROMOTED_VAR_P (vtrue);
	85	+ SUBREG_PROMOTED_UNSIGNED_SET (target, SUBREG_PROMOTED_UNSIGNED_P (vtrue));
	86	+ emit_move_insn (x, target);
	87	+ return x;
	88	+ }
	89	+ else
	90	+ return NULL_RTX;
	91	#else
	92	/* We'll never get here, as noce_process_if_block doesn't call the
	93	functions involved. Ifdef code, however, should be discouraged
	94