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0526f01fec
llvm-6502/lib/Target
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Chris Lattner 0526f01fec Simplify code by using the more powerful BuildMI forms. 
Implement a small optimization.  In test/Regression/CodeGen/X86/select.ll,
we now generate this for foldSel3:

foldSel3:
        mov %AL, BYTE PTR [%ESP + 4]
        fld DWORD PTR [%ESP + 8]
        fld DWORD PTR [%ESP + 12]
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, DWORD PTR [%ESP + 20]
        cmp %EAX, %ECX
        fxch %ST(1)
        fcmovae %ST(0), %ST(1)
***     fstp %ST(1)
        ret

Instead of:

foldSel3:
        mov %AL, BYTE PTR [%ESP + 4]
        fld DWORD PTR [%ESP + 8]
        fld DWORD PTR [%ESP + 12]
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, DWORD PTR [%ESP + 20]
        cmp %EAX, %ECX
        fxch %ST(1)
        fcmovae %ST(0), %ST(1)
***     fxch %ST(1)
***     fstp %ST(0)
        ret

In practice, this only effects code size: performance should be basically
unaffected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12588 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-01 04:06:09 +00:00
..
CBackend Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* to 2004-03-13 00:24:00 +00:00
PowerPC fine grainify namespacification 2004-02-28 19:53:18 +00:00
Sparc The .type directive on Solaris uses the # character instead of @. 2004-03-16 22:52:04 +00:00
SparcV8 The .type directive on Solaris uses the # character instead of @. 2004-03-16 22:52:04 +00:00
SparcV9 MBB::remove should not modify the iterator passed in 2004-03-31 21:59:59 +00:00
X86 Simplify code by using the more powerful BuildMI forms. 2004-04-01 04:06:09 +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 Use a map instead of annotations 2004-02-26 08:02:17 +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 make -print-machineinstrs work for both SparcV9 and X86 2004-03-04 19:16:23 +00:00
TargetSchedInfo.cpp Eliminate the distinction between "real" and "unreal" instructions 2004-02-29 06:31:16 +00:00