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122 Commits

Author SHA1 Message Date
Chris Lattner
f54b131a49 Add support for the sig(set|long)jmp intrinsics 
llvm-svn: 7951
 2003-08-18 16:06:09 +00:00
Brian Gaeke
77c65be59e Factory methods for FunctionPasses now return type FunctionPass *. 
llvm-svn: 7823
 2003-08-13 18:18:15 +00:00
Chris Lattner
17fc21b5fa This is the real fix for the previous register allocator problem. 
Physical registers should not float around.

llvm-svn: 7587
 2003-08-05 00:48:47 +00:00
Chris Lattner
15891a50c1 Fix Bug: test/Regression/Jello/2003-08-03-CallArgLiveRanges.llx 
llvm-svn: 7558
 2003-08-04 02:12:48 +00:00
Chris Lattner
cf28d0f799 Use target specific interface instead of forcing it to be target-generic 
llvm-svn: 7413
 2003-07-30 05:33:48 +00:00
Chris Lattner
40cc4c1392 Rename function to be more consistent with filename 
llvm-svn: 7352
 2003-07-26 23:49:58 +00:00
Chris Lattner
b92653f037 If the pass changes _anything_ it must return true 
llvm-svn: 7344
 2003-07-26 23:05:37 +00:00
Chris Lattner
6ad460b336 Simplify code by using ConstantInt::getRawValue instead of checking to see 
whether the constant is signed or unsigned, then casting

llvm-svn: 7252
 2003-07-23 15:22:26 +00:00
Brian Gaeke
bf46d75365 Please, save your applause^H^H^H^H^H^H^H^Hflames for the end... 
Avoid a fall-through in the (stubby) treatment of the longjmp intrinsic
call which causes llc & lli to core-dump.

Add a sort-of treatment of cast double to ulong. I am not really sure
what a user should expect to see upon casting a negative FP value to
unsigned long long. But with what is given here, I was able to write
a program that could cast -123.456 to ulong and back and get -123.0,
which seems like a step in the right direction.  GCC seems to give you
0. I don't know if I'd consider that useful.

These cases were coming up in GNU coreutils-5.0.

llvm-svn: 7205
 2003-07-18 20:23:43 +00:00
Brian Gaeke
638e6ef31c Use getClassB for load and store; we don't want to abort when we 
try to load or store through a bool*.

llvm-svn: 7195
 2003-07-17 21:30:06 +00:00
Chris Lattner
d212141d9e Setjmp should always return zero if we don't implement longjmp. This avoids 
leaving trash in the register, fixing anagram

llvm-svn: 7013
 2003-06-30 19:35:54 +00:00
Chris Lattner
6b31a873ee Until there is a setjmp/longjmp transformation pass, codegen setjmp as a noop 
and longjmp as an abort!

llvm-svn: 6977
 2003-06-29 16:42:32 +00:00
Chris Lattner
38b7729915 Do not use the inefficient, fixed function, CBW, CDQ, ... instructions 
llvm-svn: 6844
 2003-06-22 03:31:18 +00:00
Chris Lattner
7fb273d416 Minor simplification to 64-bit instsel 
llvm-svn: 6831
 2003-06-21 18:15:27 +00:00
Chris Lattner
2840a1b4ee For 16 and 32-bit multiplies, use the IMUL instruction instead of the MUL instruction. 
This allows us to not force the use of the EAX/AX registers!

llvm-svn: 6830
 2003-06-21 17:16:58 +00:00
Chris Lattner
4a8d96567f Generate code for LONG indexes to getelementptr instructions more efficiently 
llvm-svn: 6828
 2003-06-21 16:01:24 +00:00
Chris Lattner
6a3d2fc70e Implement generation of cmp R, C to not use an extra register 
llvm-svn: 6627
 2003-06-05 19:30:30 +00:00
Chris Lattner
ee044c3179 Special case simple binary operator X op C 
This avoid generating a register to hold C, which in turn speeds up the
  register allocator by a lot: ~9% on 164.gzip and ~17% on 256.bzip2.  This
  also speeds up other passes.  This also speeds up execution of the program
  marginally, and makes the asm much easier to read. :)

llvm-svn: 6626
 2003-06-05 18:28:55 +00:00
Chris Lattner
1cb899dd19 Remove usage of typedef 
llvm-svn: 6583
 2003-06-03 15:41:58 +00:00
Chris Lattner
bf8929c4bb * Implement cast (long|ulong) to bool 
* Fix cast of (short|ushort|int|uint) to bool to work right

llvm-svn: 6510
 2003-06-01 03:38:24 +00:00
Chris Lattner
92eb5bbb15 Add support for shl and shr for 64 bit integer types 
llvm-svn: 6499
 2003-06-01 01:56:54 +00:00
Chris Lattner
f365fdec06 Clean up #includes 
llvm-svn: 6173
 2003-05-13 20:21:19 +00:00
Chris Lattner
19ca50fe2a Make abort more explicit 
llvm-svn: 6151
 2003-05-12 21:16:26 +00:00
Chris Lattner
f1a6a1fde1 Remove the assertion failure of course... doh 
llvm-svn: 6150
 2003-05-12 20:39:39 +00:00
Chris Lattner
ed3b3d7c99 Implement casts from unsigned integers to floating point 
llvm-svn: 6148
 2003-05-12 20:36:13 +00:00
Chris Lattner
a9a5cdb2be Make error messages more useful than jsut an abort 
llvm-svn: 6146
 2003-05-12 20:16:58 +00:00
Chris Lattner
56f8186e3e Do not insert multiple initializations for the same value in a PHI node 
llvm-svn: 6113
 2003-05-12 14:22:21 +00:00
Chris Lattner
78f5953056 Add support for Add, Sub, And, Or, & Xor constant exprs 
llvm-svn: 6049
 2003-05-08 20:49:25 +00:00
Chris Lattner
d747f762ff Add support for variable argument functions! 
llvm-svn: 6046
 2003-05-08 19:44:13 +00:00
Chris Lattner
59c46ee655 IMPLICIT_DEF was not the beautiful elegant solution I thought it was going 
to be.  In fact, it made stuff worse.  :(

llvm-svn: 6013
 2003-05-07 19:21:28 +00:00
Chris Lattner
54c4b56baf Emit pseudo instructions to indicate that some registers are live on entrance 
and exit of the function.  This fixes bug: Jello/2003-05-06-LivenessClobber.llx
and the Fhourstones benchmark

llvm-svn: 6010
 2003-05-06 21:32:22 +00:00
Misha Brukman
bd9b827093 The Hyphenation-Adding Committee is now in session. 
llvm-svn: 5986
 2003-05-03 02:18:17 +00:00
Chris Lattner
1f7fab6047 Fix bogus assert 
llvm-svn: 5949
 2003-04-25 21:58:54 +00:00
Chris Lattner
6ae5107de6 Fix iterator invalidation problem with cast instructions 
llvm-svn: 5876
 2003-04-23 17:57:48 +00:00
Chris Lattner
c40d8cd8cd Implement the constantexpr CAST instruction correctly 
llvm-svn: 5875
 2003-04-23 17:22:12 +00:00
Misha Brukman
c06beb4c03 It's "necessary" to spell "necessarily" correctly. 
llvm-svn: 5833
 2003-04-22 17:54:23 +00:00
Chris Lattner
a48a91d095 Add support for a simple constantexpr: cast of one ptr type to another 
llvm-svn: 5829
 2003-04-21 21:33:44 +00:00
Chris Lattner
bf414ca145 Don't emit unneccesary branch instructions! 
llvm-svn: 5328
 2003-01-16 18:07:23 +00:00
Chris Lattner
7455428f21 Implement optimization folding setcc into branch. 
llvm-svn: 5324
 2003-01-16 16:43:00 +00:00
Chris Lattner
013ad21206 Implement code to keep the stack pointer aligned to an 8 byte boundary. 
This improves the performance of the power benchmark by a few percent.
This will be neccesary for SSE code, which requires 16 byte alignment of
the stack.

llvm-svn: 5320
 2003-01-16 02:20:12 +00:00
Chris Lattner
b27d60ccf1 Rename MachineInstrInfo -> TargetInstrInfo 
llvm-svn: 5272
 2003-01-14 22:00:31 +00:00
Chris Lattner
f3989edae2 * Adjust to use new interfaces, eliminating CurReg stuff 
* Support arbitrary FP constants
* Fix bugs in frame layout for function calls and incoming arguments
* Insert copies for constant arguments to PHI nodes into the BOTTOM of
  predecessor blocks, not the top.
* Implement _floating point_ support: setcc, return, load, store, cast
* Fix several bugs in the cast instruction
* Abstract out call emission and load/store for FP
* Implement malloc/free without previous lowering pass.
* Make use of new forms of MachineOperand
* Implement _long_ support!
* Fix many bugs in FP support
* Change branch from je/jne to je/jmp
* Simplify code generated for GEP instructions

llvm-svn: 5223
 2003-01-13 00:32:26 +00:00
Chris Lattner
ea33ca1e96 Rename FunctionFrameInfo to MachineFrameInfo 
llvm-svn: 5201
 2002-12-28 21:08:28 +00:00
Chris Lattner
f3b903dcc8 * Use the new Abstract Frame Manager to handle incoming arguments and 
fixed size allocas
* Revamp call emission to work with new frame manager

llvm-svn: 5178
 2002-12-28 20:24:02 +00:00
Chris Lattner
53e9d39bc2 * Simplify Value classes 
* Add initial support for FP constants
* Add initial FP support for several instructions

llvm-svn: 5154
 2002-12-25 05:13:53 +00:00
Chris Lattner
16378bf522 Changes to compile with GCC 2.96 
Changes to support configurable pointer size and endianness

llvm-svn: 5130
 2002-12-24 00:03:11 +00:00
Chris Lattner
c21fd773b8 Don't force setCC instructions into AL 
llvm-svn: 5104
 2002-12-18 01:44:31 +00:00
Chris Lattner
c7e6dd2341 Build add instructions of the correct form! 
llvm-svn: 5090
 2002-12-16 23:36:57 +00:00
Chris Lattner
f5da16f2f6 Two fixes: 
* Only load incoming arguments into virtual registers once at the
    beginning of the function
  * Assign different virtual registers to each reference to constants/globals

llvm-svn: 5088
 2002-12-16 22:54:46 +00:00
Chris Lattner
2e17697e81 Make sure stack manipulation refers to ESP the right number of times 
llvm-svn: 5086
 2002-12-16 22:29:06 +00:00