From: Paul Brook <pbrook@gcc.gnu.org>
Date: Tue, 12 Oct 2004 13:56:03 +0000 (+0000)
Subject: arm.md (addsi3_cbranch_scratch): Correct constraints.
X-Git-Tag: releases/gcc-4.0.0~4110
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b49e92fea26d4644fa5b2ab193dd29400de333d7;p=thirdparty%2Fgcc.git

arm.md (addsi3_cbranch_scratch): Correct constraints.

	* config/arm/arm.md (addsi3_cbranch_scratch): Correct constraints.
	Handle negative constants.

From-SVN: r88929
---

diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md
index 13e81e495edc..86113e7135e9 100644
--- a/gcc/config/arm/arm.md
+++ b/gcc/config/arm/arm.md
@@ -6417,7 +6417,7 @@
 	 (match_operator 3 "comparison_operator"
 	  [(plus:SI
 	    (match_operand:SI 1 "s_register_operand" "%l,l,l,0")
-	    (match_operand:SI 2 "reg_or_int_operand" "J,l,I,L"))
+	    (match_operand:SI 2 "reg_or_int_operand" "J,l,L,IJ"))
 	   (const_int 0)])
 	 (label_ref (match_operand 4 "" ""))
 	 (pc)))
@@ -6438,10 +6438,16 @@
 	 output_asm_insn (\"cmn\t%1, %2\", operands);
 	 break;
        case 2:
-	 output_asm_insn (\"add\t%0, %1, %2\", operands);
+	 if (INTVAL (operands[2]) < 0)
+	   output_asm_insn (\"sub\t%0, %1, %2\", operands);
+	 else
+	   output_asm_insn (\"add\t%0, %1, %2\", operands);
 	 break;
        case 3:
-	 output_asm_insn (\"add\t%0, %0, %2\", operands);
+	 if (INTVAL (operands[2]) < 0)
+	   output_asm_insn (\"sub\t%0, %0, %2\", operands);
+	 else
+	   output_asm_insn (\"add\t%0, %0, %2\", operands);
 	 break;
        }