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Commit Graph

206 Commits

Author SHA1 Message Date
Evan Cheng
116f97f2c7 PEI now passes a RegScavenger ptr to eliminateFrameIndex.
llvm-svn: 34707
2007-02-28 00:21:17 +00:00
Evan Cheng
da51cf986a By default, spills kills the register being stored.
llvm-svn: 34515
2007-02-23 01:10:04 +00:00
Jim Laskey
6a937ad320 Support to provide exception and selector registers.
llvm-svn: 34482
2007-02-21 22:54:50 +00:00
Evan Cheng
e4ab9c032b Re-apply my liveintervalanalysis changes. Now with PR1207 fixes.
llvm-svn: 34428
2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482 For PR1207:
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399
2007-02-19 03:20:00 +00:00
Evan Cheng
8c2508f1ac Added getReservedRegs().
llvm-svn: 34376
2007-02-17 11:06:00 +00:00
Jim Laskey
6f5d7d292f Only gather frame info if debug or eh.
llvm-svn: 33639
2007-01-29 23:20:22 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC.
llvm-svn: 33622
2007-01-29 18:51:14 +00:00
Jim Laskey
64f4242072 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
for debugging and exception handling.

llvm-svn: 33550
2007-01-26 21:22:28 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode.
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Jim Laskey
ba1dc7a8c7 Call frames for intel.
llvm-svn: 33490
2007-01-24 19:15:24 +00:00
Jim Laskey
ebaec45158 80 columns
llvm-svn: 33489
2007-01-24 18:50:57 +00:00
Evan Cheng
b6a4a7f72a PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary.
llvm-svn: 33460
2007-01-23 09:38:11 +00:00
Evan Cheng
d9d93832b0 hasFP() is now a virtual method of MRegisterInfo.
llvm-svn: 33455
2007-01-23 00:57:47 +00:00
Evan Cheng
174826c1b9 One more try...
llvm-svn: 33400
2007-01-20 10:17:53 +00:00
Evan Cheng
672910d722 Last check-in was bogus. There is no need to align the stack if the function is a leaf function (and without alloca).
llvm-svn: 33399
2007-01-20 10:11:56 +00:00
Evan Cheng
5807fbc934 Backend is reponsible for aligning the stack.
llvm-svn: 33388
2007-01-20 02:08:16 +00:00
Anton Korobeynikov
548b9af9c2 * PIC codegen for X86/Linux has been implemented
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)

llvm-svn: 33136
2007-01-12 19:20:47 +00:00
Anton Korobeynikov
2b39939053 Really big cleanup.
- New target type "mingw" was introduced
- Same things for both mingw & cygwin are marked as "cygming" (as in
gcc)
- .lcomm is supported here, so allow LLVM to use it
- Correctly use underscored versions of setjmp & _longjmp for both mingw
& cygwin

llvm-svn: 32833
2007-01-03 11:43:14 +00:00
Evan Cheng
bd6a333b52 Fix naming inconsistency.
llvm-svn: 32823
2007-01-02 21:33:40 +00:00
Evan Cheng
5effab79f3 f64 <-> i64 bit_convert using movq in 64-bit mode.
llvm-svn: 32587
2006-12-14 21:55:39 +00:00
Evan Cheng
9918e7780a Added MOVSS2DIrr and MOVDI2SSrr to foldMemeoryOperand().
llvm-svn: 32583
2006-12-14 19:44:45 +00:00
Bill Wendling
f13d78d3b8 What should be the last unnecessary <iostream>s in the library.
llvm-svn: 32333
2006-12-07 22:21:48 +00:00
Evan Cheng
f4788fe306 MI keeps a ptr of TargetInstrDescriptor, use it.
llvm-svn: 32296
2006-12-07 01:21:59 +00:00
Evan Cheng
bf13611e84 Match TargetInstrInfo changes.
llvm-svn: 32098
2006-12-01 21:52:58 +00:00
Evan Cheng
98fa7ab4d7 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead
of opcode and number of operands.

llvm-svn: 31947
2006-11-27 23:37:22 +00:00
Jim Laskey
bc27bd0c6e Hopefully a good crack at making debugging work on intel -disable-fp-elim.
llvm-svn: 31830
2006-11-17 21:19:15 +00:00
Evan Cheng
fc1b3d8bc8 Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64.
llvm-svn: 31795
2006-11-16 23:33:25 +00:00
Evan Cheng
2a92afa25d Properly transfer kill / dead info.
llvm-svn: 31765
2006-11-15 20:58:11 +00:00
Evan Cheng
0e82270ff2 Matches MachineInstr changes.
llvm-svn: 31712
2006-11-13 23:36:35 +00:00
Evan Cheng
de7ff3fa3d Fix a potential bug.
llvm-svn: 31634
2006-11-10 09:13:37 +00:00
Evan Cheng
013597778d Add implicit def / use operands to MachineInstr.
llvm-svn: 31633
2006-11-10 08:43:01 +00:00
Evan Cheng
6f0095807e Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes.
llvm-svn: 31616
2006-11-10 01:28:43 +00:00
Evan Cheng
8743c67826 Remove M_2_ADDR_FLAG.
llvm-svn: 31583
2006-11-09 02:22:54 +00:00
Evan Cheng
54c4be233e Dead code.
llvm-svn: 31405
2006-11-03 02:08:41 +00:00
Evan Cheng
02e193e2ff Delete dead code; fix 80 col violations.
llvm-svn: 30583
2006-09-22 21:43:59 +00:00
Anton Korobeynikov
7c2118575c Added some eye-candy for Subtarget type checking
Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446
2006-09-17 20:25:45 +00:00
Evan Cheng
59e25ca829 Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex
in addition to immediate operands.

llvm-svn: 30205
2006-09-08 21:08:13 +00:00
Evan Cheng
15dd42884e Committing X86-64 support.
llvm-svn: 30177
2006-09-08 06:48:29 +00:00
Chris Lattner
a96d4ad830 Some notes on better load folding we could do
llvm-svn: 30155
2006-09-07 20:32:01 +00:00
Evan Cheng
24ce2a3b27 Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll
llvm-svn: 30113
2006-09-05 08:32:49 +00:00
Chris Lattner
9cd4e3429e Completely eliminate def&use operands. Now a register operand is EITHER a
def operand or a use operand.

llvm-svn: 30109
2006-09-05 02:31:13 +00:00
Chris Lattner
59a4d8dfcd Fix a long-standing wart in the code generator: two-address instruction lowering
actually *removes* one of the operands, instead of just assigning both operands
the same register.  This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.

Changing this also gets rid of a bunch of hacky code in various places.

This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.

llvm-svn: 30108
2006-09-05 02:12:02 +00:00
Chris Lattner
db290f7479 Constify some methods. Patch provided by Anton Vayvod, thanks!
llvm-svn: 29756
2006-08-17 22:00:08 +00:00
Evan Cheng
a634c2b838 Missing a space.
llvm-svn: 29233
2006-07-20 22:52:28 +00:00
Jim Laskey
88d7595eb3 Tidy up a few things.
llvm-svn: 29213
2006-07-19 19:32:06 +00:00
Jim Laskey
d31b3778d8 Reduce size of routine. Shrinks .o by 37%.
llvm-svn: 29210
2006-07-19 17:53:32 +00:00
Evan Cheng
1d5fa40da3 Add shift and rotate by 1 instructions / patterns.
llvm-svn: 28980
2006-06-29 00:36:51 +00:00
Evan Cheng
2a0f3b2e79 Cygwin support: use _alloca to allocate stack if > 4k. Patch by Anton Korobeynikov.
llvm-svn: 28764
2006-06-13 05:14:44 +00:00
Evan Cheng
2da9d803a4 Added X86FunctionInfo subclass of MachineFunction to record whether the
function that is being lowered is forced to use FP. Currently this is only
true for main() / Cygwin.

llvm-svn: 28703
2006-06-06 23:30:24 +00:00