wangtao
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
17,744 Commits 29 Branches 0 Tags 2.2 GiB
Commit Graph

39 Commits

Author SHA1 Message Date
Chris Lattner 531f9e92d4 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 78394258ae 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 227010bb31 Remove unused #include 
llvm-svn: 19021
 2004-12-17 19:07:04 +00:00
Brian Gaeke 36c14da84f Get rid of shifts by zero in most cases. 
llvm-svn: 18931
 2004-12-14 08:21:02 +00:00
Brian Gaeke 27358a44d1 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 e5351ad5f0 Add (currently disabled) code for canFoldSetCC 
llvm-svn: 18820
 2004-12-12 06:22:30 +00:00
Brian Gaeke aa40b7d080 Add stubs for setcc-branch folding support. 
llvm-svn: 18818
 2004-12-12 06:01:26 +00:00
Brian Gaeke 52a9ed63b5 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 4bfd3f7c98 Support binary operations with immediates for <= cInt. 
llvm-svn: 18756
 2004-12-10 08:39:28 +00:00
Brian Gaeke 1139802b98 Fix bug in emitGEPOperation with large struct-member offsets. 
llvm-svn: 18201
 2004-11-24 04:07:33 +00:00
Brian Gaeke 94c58dc877 Support shr long/ulong. 
llvm-svn: 18173
 2004-11-23 21:10:50 +00:00
Brian Gaeke bde370eb58 pseudocode for 64-bit lshr. 
llvm-svn: 18154
 2004-11-23 08:14:09 +00:00
Brian Gaeke dd10ba214e Add stub method for long shift codegen. 
llvm-svn: 18100
 2004-11-22 08:02:06 +00:00
Brian Gaeke 29a4b354a3 Implement setcc on longs. 
llvm-svn: 18088
 2004-11-21 08:11:28 +00:00
Brian Gaeke 46cdc9e043 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 016bd3ba11 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 a8ea7d9cdb Support most cases of vaarg (except double). 
llvm-svn: 18055
 2004-11-20 22:50:42 +00:00
Brian Gaeke 774e978e0d Implement vacopy and vanext. 
llvm-svn: 18031
 2004-11-20 03:32:12 +00:00
Misha Brukman 4bf11e1618 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 ce75b2c2cf 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 1db83f7b73 Add VANext and VAArg stubs. 
llvm-svn: 18012
 2004-11-19 21:08:18 +00:00
Brian Gaeke 1c014df436 Implement va_start. 
llvm-svn: 18011
 2004-11-19 20:57:24 +00:00
Brian Gaeke 3db46bd0e1 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 8bb29bf3f6 va_end can safely be codegen'd to nothing on v8. 
llvm-svn: 18004
 2004-11-19 19:21:34 +00:00
Brian Gaeke 201535d102 A very sorry stub implementation of varargs intrinsics... 
llvm-svn: 18003
 2004-11-19 18:53:59 +00:00
Brian Gaeke 3effd0d769 Fix bug in casting to long/ulong. 
llvm-svn: 18001
 2004-11-19 18:48:10 +00:00
Brian Gaeke de6e536849 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 f1233fb84f 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 e13c960415 Fix problem with insertion point for ADJCALLSTACKDOWN. 
llvm-svn: 17733
 2004-11-14 06:32:08 +00:00
Brian Gaeke 347a000be6 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 e6b47514a3 Rewrite outgoing arg handling to handle more weird corner cases. 
llvm-svn: 17722
 2004-11-14 03:22:07 +00:00
Brian Gaeke 0da246f535 Handle "call" operands of type long/ulong passed in registers. 
llvm-svn: 17464
 2004-11-04 00:27:04 +00:00
Chris Lattner 37b138a00b Add support for unreachable and undef 
llvm-svn: 17074
 2004-10-17 02:42:42 +00:00
Brian Gaeke 1519c24cff Rewrite emitCastOperation, refactoring parts of it into emitIntegerCast, and 
adding emitFPToIntegerCast.

llvm-svn: 16995
 2004-10-14 19:39:34 +00:00
Brian Gaeke 4a69c9d667 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 8a4d5caa76 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 a1640d2427 I think this will handle double args. 
llvm-svn: 16618
 2004-09-30 19:44:32 +00:00
Brian Gaeke 4023d4e191 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 04bbe6fa25 Renamed file to SparcV8ISelSimple.cpp 
llvm-svn: 16267
 2004-09-10 18:51:12 +00:00