From: Klaus Treichel <ktreichel@web.de>
Date: Mon, 31 Mar 2008 19:31:41 +0000 (+0000)
Subject: Fix the sign opcode on x86 for integers and the constant case for longs.
X-Git-Tag: before.move.to.git~92
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=126a4c708895ce7f6f86011ba8b5c711250d1593;p=francis%2Flibjit.git

Fix the sign opcode on x86 for integers and the constant case for longs.
---

diff --git a/ChangeLog b/ChangeLog
index a76d98a..974e61e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-03-31  Klaus Treichel  <ktreichel@web.de>
+
+	* jit/jit-rules-x86.ins: Fix the sign opcode for integers and the
+	constant case for longs.
+
 2008-03-30  Klaus Treichel  <ktreichel@web.de>
 
 	* jit/jit-gen-x86-64.h: Add macros for the test, imul, cdw/cdq/cqo
diff --git a/jit/jit-rules-x86.ins b/jit/jit-rules-x86.ins
index 57fa4a0..f9017cb 100644
--- a/jit/jit-rules-x86.ins
+++ b/jit/jit-rules-x86.ins
@@ -1472,13 +1472,21 @@ JIT_OP_ISIGN:
 		{
 			x86_mov_reg_imm(inst, $1, -1);
 		}
+		else if($2 > 0)
+		{
+			x86_mov_reg_imm(inst, $1, 1);
+		}
 		else
 		{
 			x86_clear_reg(inst, $1);
 		}
 	}
-	[reg] -> {
+	[reg, scratch reg] -> {
+		x86_clear_reg(inst, $2);
+		x86_test_reg_reg(inst, $1, $1);
+		x86_set_reg(inst,X86_CC_GT, $2, 1);
 		x86_shift_reg_imm(inst, X86_SAR, $1, 31);
+		x86_alu_reg_reg(inst, X86_ADD, $1, $2);
 	}
 
 JIT_OP_LSIGN:
@@ -1488,6 +1496,10 @@ JIT_OP_LSIGN:
 		{
 			x86_mov_reg_imm(inst, $1, -1);
 		}
+		else if(value > 0)
+		{
+			x86_mov_reg_imm(inst, $1, 1);
+		}
 		else
 		{
 			x86_clear_reg(inst, $1);