From: Wei Guozhi <carrot@google.com>
Date: Wed, 6 Apr 2011 02:24:16 +0000 (+0000)
Subject: arm.md (arm_cmpsi_insn): Compute attr "length".
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4925d0d5e58a2fc1207d9b28b1920c5114268f13;p=gcc.git

arm.md (arm_cmpsi_insn): Compute attr "length".

	* config/arm/arm.md (arm_cmpsi_insn): Compute attr "length".
	(arm_cond_branch): Likewise.
	(arm_cond_branch_reversed): Likewise.
	(arm_jump): Likewise.
	(push_multi): Likewise.
	* config/arm/constraints.md (Py): New constraint.

From-SVN: r172017
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f4b1f3b04a1..33a774c3de8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2011-04-06  Wei Guozhi  <carrot@google.com>
+
+	PR target/47855
+	* config/arm/arm.md (arm_cmpsi_insn): Compute attr "length".
+	(arm_cond_branch): Likewise.
+	(arm_cond_branch_reversed): Likewise.
+	(arm_jump): Likewise.
+	(push_multi): Likewise.
+	* config/arm/constraints.md (Py): New constraint.
+
 2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
 
 	PR bootstrap/48471
diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md
index b2e2fc8c375..3a5bc42a2a8 100644
--- a/gcc/config/arm/arm.md
+++ b/gcc/config/arm/arm.md
@@ -7115,13 +7115,17 @@
 
 (define_insn "*arm_cmpsi_insn"
   [(set (reg:CC CC_REGNUM)
-	(compare:CC (match_operand:SI 0 "s_register_operand" "r,r")
-		    (match_operand:SI 1 "arm_add_operand"    "rI,L")))]
+	(compare:CC (match_operand:SI 0 "s_register_operand" "l,r,r,r")
+		    (match_operand:SI 1 "arm_add_operand"    "Py,r,rI,L")))]
   "TARGET_32BIT"
   "@
+   cmp%?\\t%0, %1
+   cmp%?\\t%0, %1
    cmp%?\\t%0, %1
    cmn%?\\t%0, #%n1"
-  [(set_attr "conds" "set")]
+  [(set_attr "conds" "set")
+   (set_attr "arch" "t2,t2,any,any")
+   (set_attr "length" "2,2,4,4")]
 )
 
 (define_insn "*cmpsi_shiftsi"
@@ -7292,7 +7296,14 @@
   return \"b%d1\\t%l0\";
   "
   [(set_attr "conds" "use")
-   (set_attr "type" "branch")]
+   (set_attr "type" "branch")
+   (set (attr "length")
+	(if_then_else
+	   (and (ne (symbol_ref "TARGET_THUMB2") (const_int 0))
+		(and (ge (minus (match_dup 0) (pc)) (const_int -250))
+		     (le (minus (match_dup 0) (pc)) (const_int 256))))
+	   (const_int 2)
+	   (const_int 4)))]
 )
 
 (define_insn "*arm_cond_branch_reversed"
@@ -7311,7 +7322,14 @@
   return \"b%D1\\t%l0\";
   "
   [(set_attr "conds" "use")
-   (set_attr "type" "branch")]
+   (set_attr "type" "branch")
+   (set (attr "length")
+	(if_then_else
+	   (and (ne (symbol_ref "TARGET_THUMB2") (const_int 0))
+		(and (ge (minus (match_dup 0) (pc)) (const_int -250))
+		     (le (minus (match_dup 0) (pc)) (const_int 256))))
+	   (const_int 2)
+	   (const_int 4)))]
 )
 
 
@@ -7763,7 +7781,14 @@
     return \"b%?\\t%l0\";
   }
   "
-  [(set_attr "predicable" "yes")]
+  [(set_attr "predicable" "yes")
+   (set (attr "length")
+	(if_then_else
+	   (and (ne (symbol_ref "TARGET_THUMB2") (const_int 0))
+		(and (ge (minus (match_dup 0) (pc)) (const_int -2044))
+		     (le (minus (match_dup 0) (pc)) (const_int 2048))))
+	   (const_int 2)
+	   (const_int 4)))]
 )
 
 (define_insn "*thumb_jump"
@@ -10263,7 +10288,29 @@
 
     return \"\";
   }"
-  [(set_attr "type" "store4")]
+  [(set_attr "type" "store4")
+   (set (attr "length")
+	(if_then_else
+	   (and (ne (symbol_ref "TARGET_THUMB2") (const_int 0))
+		(ne (symbol_ref "{
+		    /* Check if there are any high register (except lr)
+		       references in the list. KEEP the following iteration
+		       in sync with the template above.  */
+		    int i, regno, hi_reg;
+		    int num_saves = XVECLEN (operands[2], 0);
+		    regno = REGNO (operands[1]);
+		    hi_reg = (REGNO_REG_CLASS (regno) == HI_REGS)
+			     && (regno != LR_REGNUM);
+		    for (i = 1; i < num_saves && !hi_reg; i++)
+		      {
+			regno = REGNO (XEXP (XVECEXP (operands[2], 0, i), 0));
+			hi_reg |= (REGNO_REG_CLASS (regno) == HI_REGS)
+				  && (regno != LR_REGNUM);
+		      }
+		    !hi_reg;    }")
+		  (const_int 0)))
+	   (const_int 2)
+	   (const_int 4)))]
 )
 
 (define_insn "stack_tie"
diff --git a/gcc/config/arm/constraints.md b/gcc/config/arm/constraints.md
index 4e220e530ff..378415b6abb 100644
--- a/gcc/config/arm/constraints.md
+++ b/gcc/config/arm/constraints.md
@@ -31,7 +31,7 @@
 ;; The following multi-letter normal constraints have been used:
 ;; in ARM/Thumb-2 state: Da, Db, Dc, Dn, Dl, DL, Dv, Dy, Di, Dz
 ;; in Thumb-1 state: Pa, Pb, Pc, Pd
-;; in Thumb-2 state: Ps, Pt, Pu, Pv, Pw, Px
+;; in Thumb-2 state: Ps, Pt, Pu, Pv, Pw, Px, Py
 
 ;; The following memory constraints have been used:
 ;; in ARM/Thumb-2 state: Q, Ut, Uv, Uy, Un, Um, Us
@@ -189,6 +189,11 @@
   (and (match_code "const_int")
        (match_test "TARGET_THUMB2 && ival >= -7 && ival <= -1")))
 
+(define_constraint "Py"
+  "@internal In Thumb-2 state a constant in the range 0 to 255"
+  (and (match_code "const_int")
+       (match_test "TARGET_THUMB2 && ival >= 0 && ival <= 255")))
+
 (define_constraint "G"
  "In ARM/Thumb-2 state a valid FPA immediate constant."
  (and (match_code "const_double")