[Mono-bugs] [Bug 43499][Nor] Changed - problem comparing 2.0 and NaN

bugzilla-daemon@rocky.ximian.com bugzilla-daemon@rocky.ximian.com
Wed, 4 Jun 2003 11:03:28 -0400 (EDT)


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Changed by dietmar@ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=43499

--- shadow/43499	Wed Jun  4 10:59:55 2003
+++ shadow/43499.tmp.758	Wed Jun  4 11:03:28 2003
@@ -1,14 +1,14 @@
 Bug#: 43499
 Product: Mono/Runtime
 Version: unspecified
-OS: 
+OS: unknown
 OS Details: 
 Status: NEW   
 Resolution: 
-Severity: 
+Severity: Unknown
 Priority: Normal
 Component: misc
 AssignedTo: mono-bugs@ximian.com                            
 ReportedBy: vargaz@freemail.hu               
 QAContact: mono-bugs@ximian.com
 TargetMilestone: ---
@@ -26,7 +26,22 @@
 testcase
 
 
 ------- Additional Comments From dietmar@ximian.com  2003-06-04 10:59 -------
 Created an attachment (id=4531)
 a C# test case
+
+
+------- Additional Comments From dietmar@ximian.com  2003-06-04 11:03 -------
+The problem is in mini-x86.c:
+
+		case OP_FBEQ:
+			if (cfg->opt & MONO_OPT_FCMOV) {
+				EMIT_COND_BRANCH (ins, X86_CC_EQ, FALSE);
+				break;
+			}
+
+The cond. branch only checks for ZF=1 (X86_CC_EQ), but it should check
+for (ZF=1 && PF=0) or (ZF=1 && CF=0). But I found no way to do such check.
+
+