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6834 Commits

Author SHA1 Message Date
Bill Wendling
e6a9c6dfe6 We generate a shufflevector instruction, so we don't need the builtin 
intrinsic.

llvm-svn: 35269
 2007-03-22 20:29:26 +00:00
Bill Wendling
1bcad4c1cd Support added for shifts and unpacking MMX instructions. 
llvm-svn: 35266
 2007-03-22 18:42:45 +00:00
Dale Johannesen
44c0a5d545 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Anton Korobeynikov
c0842af02d Add TODO list for MSIL backend 
llvm-svn: 35244
 2007-03-21 21:48:59 +00:00
Anton Korobeynikov
bc43d296b2 Let the new backend begin! 
llvm-svn: 35242
 2007-03-21 21:38:25 +00:00
Dale Johannesen
fb7b59f5dd add generation of unnecessary push/pop around calls 
llvm-svn: 35241
 2007-03-21 21:16:39 +00:00
Nicolas Geoffray
205541ef78 Protect R31's frame offset from being used by callee-saved registers, when R31 
is the frame pointer.

llvm-svn: 35233
 2007-03-21 16:44:14 +00:00
Evan Cheng
00a5cbf9e7 Mark re-materializable instructions. 
llvm-svn: 35230
 2007-03-21 00:16:56 +00:00
Evan Cheng
fb9c4c2edc Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Dale Johannesen
3e422e3b49 do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)

llvm-svn: 35227
 2007-03-20 21:54:54 +00:00
Lauro Ramos Venancio
11d7d3fcaf bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 
mov lr, pc
    bx lr
So, the function was not called.

llvm-svn: 35218
 2007-03-20 17:57:23 +00:00
Evan Cheng
4fec9d7228 Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool. 
llvm-svn: 35207
 2007-03-20 08:11:30 +00:00
Evan Cheng
11976abd1e New entry. 
llvm-svn: 35206
 2007-03-20 08:10:17 +00:00
Evan Cheng
41f4f032ee Added MRegisterInfo hook to re-materialize an instruction. 
llvm-svn: 35205
 2007-03-20 08:09:38 +00:00
Chris Lattner
b9cc0ade43 Two changes: 
1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
   in three-address form.

This gives us asm diffs like:

-       leal (,%eax,4), %eax
+       shll $2, %eax

which is faster on some processors and smaller on all of them.

and, more interestingly:

-       movl 24(%esi), %eax
-       leal (,%eax,4), %edi
+       movl 24(%esi), %edi
+       shll $2, %edi

Without #2, #1 was a significant pessimization in some cases.

This implements CodeGen/X86/shift-codegen.ll

llvm-svn: 35204
 2007-03-20 06:08:29 +00:00
Chris Lattner
1ed603c0d9 fix indentation 
llvm-svn: 35202
 2007-03-20 02:25:53 +00:00
Dale Johannesen
c526b970ce fix obvious comment bug 
llvm-svn: 35196
 2007-03-20 00:30:56 +00:00
Evan Cheng
8d374caead Fix naming inconsistencies. 
llvm-svn: 35163
 2007-03-19 07:48:02 +00:00
Evan Cheng
7cbf4c4582 Special LDR instructions to load from non-pc-relative constantpools. These are 
rematerializable. Only used for constant generation for now.

llvm-svn: 35162
 2007-03-19 07:20:03 +00:00
Evan Cheng
389cf8e719 Constant generation instructions are re-materializable. 
llvm-svn: 35161
 2007-03-19 07:09:02 +00:00
Evan Cheng
498f19548c Added isReMaterializable. 
llvm-svn: 35160
 2007-03-19 06:22:07 +00:00
Chris Lattner
59fe2be1c4 fix a warning 
llvm-svn: 35152
 2007-03-19 00:39:32 +00:00
Chris Lattner
a1df6908d2 minor updates 
llvm-svn: 35143
 2007-03-18 22:41:33 +00:00
Nick Lewycky
04ecc07c25 This is implemented. We now generate: 
entry:
        icmp ugt i32 %x, 4              ; <i1>:0 [#uses=1]
        br i1 %0, label %cond_true, label %cond_false

cond_true:              ; preds = %entry
        %tmp1 = tail call i32 (...)* @bar( i32 12 )             ; <i32> [#uses=0]
        ret void

cond_false:             ; preds = %entry
        switch i32 %x, label %cond_true15 [
                 i32 4, label %cond_true3
                 i32 3, label %cond_true7
                 i32 2, label %cond_true11
                 i32 0, label %cond_false17
        ]

...

llvm-svn: 35142
 2007-03-18 14:37:20 +00:00
Devang Patel
2dabb16eac Support 'I' inline asm constraint. 
llvm-svn: 35129
 2007-03-17 00:13:28 +00:00
Lauro Ramos Venancio
f756184c5e Only ARMv6 has BSWAP. 
Fix MultiSource/Applications/aha test.

llvm-svn: 35128
 2007-03-16 22:54:16 +00:00
Bill Wendling
8ced23ee5a And now support for MMX logical operations. 
llvm-svn: 35125
 2007-03-16 09:44:46 +00:00
Evan Cheng
4858c6f781 Added isLegalAddressExpression(). Only allows X +/- C for now. 
llvm-svn: 35122
 2007-03-16 08:43:56 +00:00
Bill Wendling
feaff80149 Multiplication support for MMX. 
llvm-svn: 35118
 2007-03-15 21:24:36 +00:00
Evan Cheng
00edaa08b5 Under X86-64 large code model, do not emit 32-bit pc relative calls. 
llvm-svn: 35108
 2007-03-14 22:11:11 +00:00
Evan Cheng
fc80b5b712 Notes about codegen issues. 
llvm-svn: 35107
 2007-03-14 21:03:53 +00:00
Evan Cheng
50a0af3b57 Clean up. 
llvm-svn: 35105
 2007-03-14 20:20:19 +00:00
Evan Cheng
2617c8dd3a Oops. 
llvm-svn: 35104
 2007-03-14 19:44:58 +00:00
Evan Cheng
371b8e8fa9 X86-64 JIT is in large code model. Need stubs for direct calls. 
llvm-svn: 35097
 2007-03-14 10:51:55 +00:00
Evan Cheng
1092e481ce x86-64 JIT stub codegen. 
llvm-svn: 35096
 2007-03-14 10:48:08 +00:00
Evan Cheng
15de6714a4 Preliminary support for X86-64 JIT stub codegen. 
llvm-svn: 35095
 2007-03-14 10:44:30 +00:00
Evan Cheng
7cbde8351a AM2 can match 2^n +/- 1. e.g. ldr r3, [r2, r2, lsl #2] 
llvm-svn: 35088
 2007-03-13 21:05:54 +00:00
Evan Cheng
7b24b3e474 Zero is always a legal AM immediate. 
llvm-svn: 35087
 2007-03-13 20:37:59 +00:00
Nicolas Geoffray
9c77df75ea Stack and register alignment of call arguments in the ELF ABI 
llvm-svn: 35083
 2007-03-13 15:02:46 +00:00
Evan Cheng
92712d4884 Implement getTargetLowering() or else LSR won't be using ARM specific hooks. 
llvm-svn: 35077
 2007-03-13 01:20:42 +00:00
Evan Cheng
7767159f08 Updated TargetLowering LSR addressing mode hooks for ARM and Thumb. 
llvm-svn: 35075
 2007-03-12 23:30:29 +00:00
Evan Cheng
06d83c8fce More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale. 
llvm-svn: 35074
 2007-03-12 23:29:01 +00:00
Evan Cheng
0eeb8b59eb More flexible TargetLowering LSR hooks for testing whether an immediate is 
a legal target address immediate or scale.

llvm-svn: 35073
 2007-03-12 23:28:50 +00:00
Evan Cheng
4224fa3617 Stupid bug: SSE2 supports v2i64 add / sub. 
llvm-svn: 35070
 2007-03-12 22:58:52 +00:00
Bill Wendling
236cfc4344 Adding more arithmetic operators to MMX. This is an almost exact copy of 
the addition. Please let me know if you have suggestions.

llvm-svn: 35055
 2007-03-10 09:57:05 +00:00
Evan Cheng
a4e410aa9c Minor stuff. 
llvm-svn: 35049
 2007-03-09 19:46:06 +00:00
Evan Cheng
d7201d12af Add comments about LSR / ARM. 
llvm-svn: 35048
 2007-03-09 19:35:33 +00:00
Evan Cheng
2e6f19d8c8 Unfinished work and ideas related to register scavenger. 
llvm-svn: 35047
 2007-03-09 19:34:51 +00:00
Dale Johannesen
10a05b538d apply comments from review of last patch 
llvm-svn: 35045
 2007-03-09 19:18:59 +00:00
Dale Johannesen
23c2498e23 Add some observations from CoreGraphics benchmark. Remove register 
scavenging todo item, since it is now implemented.

llvm-svn: 35044
 2007-03-09 17:58:17 +00:00