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Author SHA1 Message Date
Chris Lattner
538a46b41c llvm.isnan is dead, long live llvm.isunordered! 
llvm-svn: 14190
 2004-06-15 21:50:46 +00:00
Chris Lattner
9bb0083d16 Remove support for llvm.isnan. Alkis wins :) 
llvm-svn: 14189
 2004-06-15 21:48:07 +00:00
Chris Lattner
5c115a9836 This testcase is a bit silly now, but oh well :) 
llvm-svn: 14188
 2004-06-15 21:46:16 +00:00
Chris Lattner
c9a6116586 Remove isnan support, correct isunordered support 
llvm-svn: 14187
 2004-06-15 21:42:23 +00:00
Chris Lattner
1adcf0441d Remove support for the isnan intrinsic 
llvm-svn: 14186
 2004-06-15 21:37:54 +00:00
Chris Lattner
d11493d8c4 Add basic support for the isunordered intrinsic. The isnan stuff still needs to go 
llvm-svn: 14185
 2004-06-15 21:36:44 +00:00
Chris Lattner
bb0198d8d2 Right, stop being silly 
llvm-svn: 14184
 2004-06-15 21:29:40 +00:00
Chris Lattner
1b81b46323 Add a nan, stop testing isnan 
llvm-svn: 14183
 2004-06-15 21:29:01 +00:00
Brian Gaeke
0a7b268b1a Fix thinko in visitor... ShiftInsts should currently be delegated 
to visitBinaryOperator.

llvm-svn: 14182
 2004-06-15 21:09:46 +00:00
Chris Lattner
8ca8002f88 Do not dereference end iterators. It's really bad for the asmwriter's health. 
This possibly fixes PR370

llvm-svn: 14181
 2004-06-15 21:07:32 +00:00
Brian Gaeke
5fe5e06bea I think we'll use the standard lowering passes for now. 
llvm-svn: 14179
 2004-06-15 20:37:12 +00:00
Brian Gaeke
d5f45ba4a1 Fix bug generating code for void call instructions: don't call 
getReg() on void value.

llvm-svn: 14178
 2004-06-15 20:06:32 +00:00
Brian Gaeke
79008f4648 Squash a warning from the Solaris assembler by aligning the stack 
on a double-word boundary instead of a single-word boundary.

llvm-svn: 14177
 2004-06-15 19:53:10 +00:00
Brian Gaeke
e02c780919 Allow special-casing of operand printing based on opcode. Print 
non-register, non-immed. arguments to SETHI and OR using %hi() and
%lo() respectively.

llvm-svn: 14176
 2004-06-15 19:52:59 +00:00
Brian Gaeke
b158cb6411 Support constant GEP expressions. 
Support copying long constants to register pairs.
Support copying ConstantPointerNulls and ConstantPointerRefs to registers.

llvm-svn: 14175
 2004-06-15 19:16:07 +00:00
Misha Brukman
19322ee4c6 The correct prototype is `int atoi(CONST char*)'. Unbroke AIX build. 
llvm-svn: 14173
 2004-06-14 16:30:05 +00:00
Misha Brukman
130e02f232 Add file comment. 
llvm-svn: 14172
 2004-06-14 15:13:59 +00:00
Brian Gaeke
a4353cabab Quick hack to get this file compiling again on Mac OS X. The right thing to do 
is write an autoconf macro that checks whether __isnan or isnan actually works
**using the C++ compiler after #include <cmath>**, instead of doing it the easy
way with AC_CHECK_FUNCS().

llvm-svn: 14171
 2004-06-14 06:33:19 +00:00
Brian Gaeke
21e2dd53d8 Make -print-machineinstrs even stronger. You get to see the final code after 
peepholing, and make it work the same way in the JIT as in LLC.

llvm-svn: 14170
 2004-06-14 05:05:45 +00:00
Reid Spencer
6771895caa Get rid of "might be uninitialized" warnings when compiling with GCC 3.3.2 
llvm-svn: 14169
 2004-06-13 19:17:49 +00:00
Alkis Evlogimenos
dd550dc9cd Add constant folding capabilities to the isunordered intrinsic. 
llvm-svn: 14168
 2004-06-13 01:23:56 +00:00
Alkis Evlogimenos
dcf5341b61 Really add the docs this time :-) 
llvm-svn: 14167
 2004-06-13 01:16:15 +00:00
Alkis Evlogimenos
173e9e832c Make assertions more consistent with the rest of the intrinsic 
function verification and make it a requirement that both arguments to
llvm.isunordered are of the same type.

llvm-svn: 14165
 2004-06-13 00:55:26 +00:00
Alkis Evlogimenos
9b28aef6cb Add the isunordered intrinsic. 
llvm-svn: 14159
 2004-06-12 19:19:14 +00:00
Reid Spencer
5310ad2ad5 Reduce the number of columns in the alpha index to 4 so that it fits 
on a 1280x1024 screen!

llvm-svn: 14158
 2004-06-12 14:46:02 +00:00
Chris Lattner
a8fd205112 It is no longer 2001 
llvm-svn: 14157
 2004-06-11 21:12:22 +00:00
Brian Gaeke
a4caf3f4f1 Don't trim @PrevDays (causing an error) if it isn't long enough. 
llvm-svn: 14156
 2004-06-11 19:55:30 +00:00
Misha Brukman
4fdc92647b Fix grammar: 's is for possessive only. 
llvm-svn: 14155
 2004-06-11 16:50:21 +00:00
Reid Spencer
efdd7cd3ac Implement tracking of bytecode instruction size and the number of long 
instructions generated.

llvm-svn: 14154
 2004-06-11 15:10:38 +00:00
Reid Spencer
1c1bf98896 Add two options to the program: 
-release causes ENABLE_OPTIMIZED=1 to be added to the make line so that
         the test runs against optimized code.
-pedantic causes the CompileOptimizeOpts variable to be overridden to
          add several additional warnings not picked up by -Wall. This
	  should help catch additional programming faux pas. See the diff
	  for the specific details.

llvm-svn: 14153
 2004-06-11 07:06:22 +00:00
Chris Lattner
84269aa91e Fix fallout from getOffsetOfLocalArea() being negated. Debugging dumps were being 
printed incorrectly, and we were reserving 8 extra bytes of stack space for functions
on X86.

llvm-svn: 14152
 2004-06-11 06:37:11 +00:00
Chris Lattner
8dd2380de4 llvm.isnan doesn't access memory 
llvm-svn: 14151
 2004-06-11 06:17:13 +00:00
Chris Lattner
66790212ba Constant fold the isnan intrinsic 
llvm-svn: 14150
 2004-06-11 06:16:23 +00:00
Chris Lattner
81db12e7d7 Add tests for isnan 
llvm-svn: 14149
 2004-06-11 06:16:13 +00:00
Chris Lattner
3a8e675c03 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

llvm-svn: 14148
 2004-06-11 05:33:49 +00:00
Chris Lattner
e010d3c940 Test that the X86 backend is only emitting one fucom instruction 
for each 'COM =' line.

llvm-svn: 14147
 2004-06-11 05:30:34 +00:00
Chris Lattner
f78e3e7f63 Fix bug in previous checkin 
llvm-svn: 14146
 2004-06-11 05:22:44 +00:00
Chris Lattner
7d8093efb1 No really, these are dead now 
llvm-svn: 14145
 2004-06-11 04:50:14 +00:00
Chris Lattner
a8e603b719 Now that compare instructions aren't lumped in with the other twoargfp instructions, 
we can get rid of the FpUCOM/FpUCOMi pseudo instructions, which makes stuff simpler
and faster.

llvm-svn: 14144
 2004-06-11 04:49:02 +00:00
Chris Lattner
b050f778ca Introduce a new FP instruction type to separate the compare cases from the 
twoarg cases.

llvm-svn: 14143
 2004-06-11 04:41:24 +00:00
Chris Lattner
f9117d37fd Bug fixed, new feature 
llvm-svn: 14142
 2004-06-11 04:35:21 +00:00
Chris Lattner
edb06042b9 Add direct support for the isnan intrinsic, implementing test/Regression/CodeGen/X86/isnan.llx 
testcase

llvm-svn: 14141
 2004-06-11 04:31:10 +00:00
Chris Lattner
4c8b57ea31 Add support for the setp instructions 
llvm-svn: 14140
 2004-06-11 04:30:06 +00:00
Chris Lattner
c66e996765 Split compare instruction handling OUT of handleTwoArgFP into handleCompareFP. 
This makes the code much simpler, and the two cases really do belong apart.
Once we do it, it's pretty obvious how flawed the logic was for A != A case,
so I fixed it (fixing PR369).

This also uses freeStackSlotAfter instead of inserting an fxchg then
popStackAfter'ing in the case where there is a dead result (unlikely, but
possible), producing better code.

llvm-svn: 14139
 2004-06-11 04:25:06 +00:00
Reid Spencer
810a005b40 Change tags rule to pipe output from find through etags command so that it 
doesn't break on machines with limited command line lengths.

llvm-svn: 14138
 2004-06-11 03:10:27 +00:00
Reid Spencer
7172b26a18 Revert an unneeded interface change to Instruction.h 
llvm-svn: 14137
 2004-06-11 03:06:43 +00:00
Chris Lattner
6fc9e8dd94 Testcase for PR369 
llvm-svn: 14136
 2004-06-11 02:59:47 +00:00
Chris Lattner
c90dfb64dd Check to make sure that isnan doesn't require calling a function 
llvm-svn: 14135
 2004-06-11 02:54:54 +00:00
Chris Lattner
94a66c3038 Fix lowering to work correctly 
llvm-svn: 14134
 2004-06-11 02:54:02 +00:00
Chris Lattner
145f2e2936 I misled Alkis: LLVM should have isnan, not isunordered. 
isunordered(X, Y) === isnan(X) | isnan(Y)

Remove isunordered, add isnan.

Modernize testcase

llvm-svn: 14133
 2004-06-11 02:29:57 +00:00