Chris Lattner 01cdb1b367 By far, one of the most common uses of isnan is to make 'isunordered' ... comparisons. In an 'isunordered' predicate, which looks like this at the LLVM level: %a = call bool %llvm.isnan(double %X) %b = call bool %llvm.isnan(double %Y) %COM = or bool %a, %b We used to generate this code: fxch %ST(1) fucomip %ST(0), %ST(0) setp %AL fucomip %ST(0), %ST(0) setp %AH or %AL, %AH With this patch, we generate this code: fucomip %ST(0), %ST(1) fstp %ST(0) setp %AL Which should make alkis happy. Tested as X86/compare_folding.llx:test1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14148 91177308-0d34-0410-b5e6-96231b3b80d8		2004-06-11 05:33:49 +00:00
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CBackend	<alloca.h> on cygwin pulls in a ton of stuff (macros and function protos)	2004-06-02 23:10:26 +00:00
PowerPC	Fix the fixed stack offset, patch contributed by Vladimir Prus	2004-06-10 06:19:25 +00:00
Sparc	Adjust to new TM interfaces	2004-06-02 05:47:26 +00:00
SparcV8	Adjust to new TM interfaces	2004-06-02 05:47:26 +00:00
SparcV9	Turn loads of ConstantPointerNulls into loads of zero... don't spill	2004-06-11 02:03:48 +00:00
X86	By far, one of the most common uses of isnan is to make 'isunordered'	2004-06-11 05:33:49 +00:00
Makefile	Remove ghostly directory from the build	2004-03-11 04:42:41 +00:00
MRegisterInfo.cpp	Put all LLVM code into the llvm namespace, as per bug 109.	2003-11-11 22:41:34 +00:00
Target.td	Expose the "Other" value type to tablegen targets	2004-02-11 03:08:45 +00:00
TargetData.cpp	Fix typo.	2004-04-14 21:21:56 +00:00
TargetFrameInfo.cpp	Move implementations of functions here, which avoids #including <cstdlib> in the	2004-03-11 23:52:43 +00:00
TargetInstrInfo.cpp	Adjust to change in TII ctor arguments	2004-02-29 06:31:44 +00:00
TargetMachine.cpp	Method has been inlined into all callers	2004-06-02 05:55:48 +00:00
TargetSchedInfo.cpp	Adjust to new TM interface	2004-06-02 05:56:04 +00:00