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43 Commits

Author SHA1 Message Date
Chris Lattner
d09afb735d Rename load/store instructions to include an RI suffix 
llvm-svn: 24784
 2005-12-17 20:18:49 +00:00
Andrew Lenharth
a9214fec08 core changes for varargs 
llvm-svn: 22254
 2005-06-18 18:34:52 +00:00
Misha Brukman
b3e2f08638 Convert tabs to spaces 
llvm-svn: 21457
 2005-04-22 18:06:01 +00:00
Misha Brukman
1fef885677 Remove trailing whitespace 
llvm-svn: 21425
 2005-04-21 23:30:14 +00:00
Chris Lattner
4b688a1c70 This mega patch converts us from using Function::a{iterator|begin|end} to 
using Function::arg_{iterator|begin|end}.  Likewise Module::g* -> Module::global_*.

This patch is contributed by Gabor Greif, thanks!

llvm-svn: 20597
 2005-03-15 04:54:21 +00:00
Chris Lattner
ccd0d44133 Substantially improve the code generated by non-folded setcc instructions. 
In particular, instead of compiling this:

bool %test(int %A, int %B) {
  %C = setlt int %A, %B
  ret bool %C
}

to this:

test:
        save %sp, -96, %sp
        subcc %i0, %i1, %g0
        bl .LBBtest_1   !
        nop
        ba .LBBtest_2   !
        nop
.LBBtest_1:     !
        or %g0, 1, %i0
        ba .LBBtest_3   !
        nop
.LBBtest_2:     !
        or %g0, 0, %i0
        ba .LBBtest_3   !
        nop
.LBBtest_3:     !
        restore %g0, %g0, %g0
        retl
        nop

We now compile it to this:

test:
        save %sp, -96, %sp
        subcc %i0, %i1, %g0
        or %g0, 1, %i0
        bl .LBBtest_2   !
        nop
.LBBtest_1:     !
        or %g0, %g0, %i0
.LBBtest_2:     !
        restore %g0, %g0, %g0
        retl
        nop

llvm-svn: 19213
 2005-01-01 16:06:57 +00:00
Chris Lattner
5f28e9fafc Remove unused #include 
llvm-svn: 19021
 2004-12-17 19:07:04 +00:00
Brian Gaeke
83dcf14697 Get rid of shifts by zero in most cases. 
llvm-svn: 18931
 2004-12-14 08:21:02 +00:00
Brian Gaeke
ee60e35a28 Finally enable the setcc-branch folding code. 
Also, fix a bug where ubyte 255 would sometimes be output as -1. This
was afflicting hbd.

llvm-svn: 18823
 2004-12-12 07:42:58 +00:00
Brian Gaeke
09c4a78ece Add (currently disabled) code for canFoldSetCC 
llvm-svn: 18820
 2004-12-12 06:22:30 +00:00
Brian Gaeke
55c163e41e Add stubs for setcc-branch folding support. 
llvm-svn: 18818
 2004-12-12 06:01:26 +00:00
Brian Gaeke
948a8145bf Make GEPs not suck so much: 
* Don't emit the Index * ElementSize multiply if Index is a constant.
* Use a shift, not a multiply, if ElementSize is 1/2/4/8.
* If ElementSize fits in the immediate field of SMUL, then put it there.

Fix a bug where struct offsets might be truncated (ConstantSInt::get is
now used instead of ConstantInt::get).

llvm-svn: 18792
 2004-12-11 05:19:02 +00:00
Brian Gaeke
2a9ecc433f Support binary operations with immediates for <= cInt. 
llvm-svn: 18756
 2004-12-10 08:39:28 +00:00
Brian Gaeke
3bb57935a7 Fix bug in emitGEPOperation with large struct-member offsets. 
llvm-svn: 18201
 2004-11-24 04:07:33 +00:00
Brian Gaeke
ce245ef743 Support shr long/ulong. 
llvm-svn: 18173
 2004-11-23 21:10:50 +00:00
Brian Gaeke
b63c34a9f9 pseudocode for 64-bit lshr. 
llvm-svn: 18154
 2004-11-23 08:14:09 +00:00
Brian Gaeke
c0c0b053e6 Add stub method for long shift codegen. 
llvm-svn: 18100
 2004-11-22 08:02:06 +00:00
Brian Gaeke
52bb1a0073 Implement setcc on longs. 
llvm-svn: 18088
 2004-11-21 08:11:28 +00:00
Brian Gaeke
cb0a971f8f Support add, sub, mul, div, rem on longs/ulongs (latter 3 by emitting libcalls). 
Add a big comment containing my notes on how to do setcc for longs/ulongs.

llvm-svn: 18086
 2004-11-21 07:13:16 +00:00
Brian Gaeke
e07eb993d6 Fix extraStack calculation -- I think in fact it might be getting a bit *too* 
much stack, but that's better than not enough, which leads to miscompilations.

Fix FP vaarg.

llvm-svn: 18079
 2004-11-21 03:35:22 +00:00
Brian Gaeke
1805f32d5f Support most cases of vaarg (except double). 
llvm-svn: 18055
 2004-11-20 22:50:42 +00:00
Brian Gaeke
c72d2a96dc Implement vacopy and vanext. 
llvm-svn: 18031
 2004-11-20 03:32:12 +00:00
Misha Brukman
35c8db23b6 Revert the patch that adds Function* for each 64-bit libc div/mul/rem that we 
want to do; instead, we can use MachineInstr::addExternalSymbol(char*, bool) and
thus we don't have to modify the Module as we are code generating for it

llvm-svn: 18025
 2004-11-20 00:10:20 +00:00
Misha Brukman
87bfc8b09c Add protoypes for 64-bit long/ulong div, mul, and rem functions 
llvm-svn: 18019
 2004-11-19 22:14:35 +00:00
Brian Gaeke
89f96e4c7c Add VANext and VAArg stubs. 
llvm-svn: 18012
 2004-11-19 21:08:18 +00:00
Brian Gaeke
6224830c11 Implement va_start. 
llvm-svn: 18011
 2004-11-19 20:57:24 +00:00
Brian Gaeke
e88367016a First part of varargs support: getting all varargs which could possibly 
be in registers into memory.

llvm-svn: 18006
 2004-11-19 20:31:08 +00:00
Brian Gaeke
9c9427b62b va_end can safely be codegen'd to nothing on v8. 
llvm-svn: 18004
 2004-11-19 19:21:34 +00:00
Brian Gaeke
7027432624 A very sorry stub implementation of varargs intrinsics... 
llvm-svn: 18003
 2004-11-19 18:53:59 +00:00
Brian Gaeke
5de5da7603 Fix bug in casting to long/ulong. 
llvm-svn: 18001
 2004-11-19 18:48:10 +00:00
Brian Gaeke
23969d8817 Rewrite LoadArgumentsToVirtualRegs, making it match almost exactly how 
visitCallInst works.  Support cast of byte/short/int to long.

llvm-svn: 17949
 2004-11-18 07:43:33 +00:00
Brian Gaeke
70a111317a We were (somehow) getting the wrong branch opcode for setcc float instrs. 
llvm-svn: 17925
 2004-11-17 22:06:56 +00:00
Brian Gaeke
f9ec4c8ee2 Fix problem with insertion point for ADJCALLSTACKDOWN. 
llvm-svn: 17733
 2004-11-14 06:32:08 +00:00
Brian Gaeke
ab60855423 Fix NotTest - round up extraStack to the nearest doubleword, if it is 
not zero.

llvm-svn: 17728
 2004-11-14 05:19:00 +00:00
Brian Gaeke
1b3d701769 Rewrite outgoing arg handling to handle more weird corner cases. 
llvm-svn: 17722
 2004-11-14 03:22:07 +00:00
Brian Gaeke
85e7df8097 Handle "call" operands of type long/ulong passed in registers. 
llvm-svn: 17464
 2004-11-04 00:27:04 +00:00
Chris Lattner
bb5b3f0b2f Add support for unreachable and undef 
llvm-svn: 17074
 2004-10-17 02:42:42 +00:00
Brian Gaeke
ba65401a4d Rewrite emitCastOperation, refactoring parts of it into emitIntegerCast, and 
adding emitFPToIntegerCast.

llvm-svn: 16995
 2004-10-14 19:39:34 +00:00
Brian Gaeke
26b353ebd6 Fix assertion failure when calling or returning from a function which 
returns 'bool' type.

llvm-svn: 16884
 2004-10-10 20:34:17 +00:00
Brian Gaeke
245a073aa6 Fix whitespace and wrap some long lines. 
Deal with allocating stack space for outgoing args and copying them into the
correct stack slots (at least, we can copy <=32-bit int args).
We now correctly generate ADJCALLSTACK* instructions.

llvm-svn: 16881
 2004-10-10 19:57:18 +00:00
Brian Gaeke
c667e351ed I think this will handle double args. 
llvm-svn: 16618
 2004-09-30 19:44:32 +00:00
Brian Gaeke
bad755c1d1 Simplify copyConstantToRegister() for longs, using a pair of recursive calls. 
Copy constant-pool entries' addresses into registers before loading out of them,
to avoid errors from the assembler.
Handle loading call args past the 6th one off the stack.
Add IMPLICIT_DEF pseudo-instrs for double and long arguments passed in register
pairs.
Use FpMOVD to copy doubles around instead of the horrible store-load thing we
were doing before.
Handle 'ret double' and 'ret long'.
Fix a bug in handling 'and/or/xor long'.

llvm-svn: 16577
 2004-09-29 03:34:41 +00:00
Misha Brukman
587a924177 Renamed file to SparcV8ISelSimple.cpp 
llvm-svn: 16267
 2004-09-10 18:51:12 +00:00