Commit Graph

15011 Commits

Author SHA1 Message Date
Nate Begeman a0d95a8da9 Behold, more work on relocations. Things are looking pretty good now.
llvm-svn: 30240
2006-09-10 23:03:44 +00:00
Anton Korobeynikov fbee8bfe48 Removed unnecessary Mangler creation.
llvm-svn: 30239
2006-09-10 21:17:03 +00:00
Chris Lattner d1f8e07808 Allow tail duplication in more cases, relaxing the previous restriction a
bit.  This fixes Regression/Transforms/TailDup/MergeTest.ll

llvm-svn: 30237
2006-09-10 18:17:58 +00:00
Chris Lattner 2e0dfb0b16 This code was trying too hard. By eliminating redundant edges in the CFG
due to switch cases going to the same place, it make #pred != #phi entries,
breaking live interval analysis.

This fixes 458.sjeng on x86 with llc.

llvm-svn: 30236
2006-09-10 06:36:57 +00:00
Nick Lewycky 9a22d7b60f Replace EquivalenceClasses with a custom-built data structure. Many common
operations (like findProperties) should be faster, at the expense of
unionSets being slower in cases that are rare in practise.

Don't erase a dead Instruction. This fixes a memory corruption issue.

llvm-svn: 30235
2006-09-10 02:27:07 +00:00
Chris Lattner 0468987592 Implement Transforms/InstCombine/hoist_instr.ll
llvm-svn: 30234
2006-09-09 22:02:56 +00:00
Chris Lattner 27ff96d87a Make inlining costs more accurate.
llvm-svn: 30231
2006-09-09 20:40:44 +00:00
Chris Lattner d79dc79831 Turn div X, (Cond ? Y : 0) -> div X, Y
This implements select.ll::test18.

llvm-svn: 30230
2006-09-09 20:26:32 +00:00
Chris Lattner fdb3a75942 Add cbe support for powi
llvm-svn: 30226
2006-09-09 06:17:12 +00:00
Chris Lattner f0359b343a Implement the fpowi now by lowering to a libcall
llvm-svn: 30225
2006-09-09 06:03:30 +00:00
Chris Lattner e4bbb6c341 Allow targets to custom lower expanded BIT_CONVERT's
llvm-svn: 30217
2006-09-09 00:20:27 +00:00
Nate Begeman 69df6132d7 First pass at supporting relocations. Relocations are written correctly to
the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.

llvm-svn: 30207
2006-09-08 22:42:09 +00:00
Evan Cheng de33f66286 Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex
in addition to immediate operands.

llvm-svn: 30205
2006-09-08 21:08:13 +00:00
Chris Lattner b2e7316b2d Non-allocatable physregs can be killed and dead, but don't treat them as
safe for later allocation.  This fixes McCat/18-imp with llc-beta.

llvm-svn: 30204
2006-09-08 20:21:31 +00:00
Chris Lattner 050c64c51d This fixes Benchmarks/Prolangs-C/unix-smail
llvm-svn: 30198
2006-09-08 19:11:11 +00:00
Chris Lattner 9b1a6ebf20 Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection
of unallocatable registers, just because an alias is allocatable.  We were
picking registers like SIL just because ESI was being used.

llvm-svn: 30197
2006-09-08 19:03:30 +00:00
Rafael Espindola d11fb5d13b implement shl and sra
llvm-svn: 30191
2006-09-08 17:36:23 +00:00
Chris Lattner 6c003a7c2d Use __USER_LABEL_PREFIX__ to get the prefix added by the current host.
llvm-svn: 30190
2006-09-08 17:03:56 +00:00
Rafael Espindola 4443c7d60a add the eor (xor) instruction
llvm-svn: 30189
2006-09-08 16:59:47 +00:00
Jim Laskey 177405376c Missing tab
llvm-svn: 30188
2006-09-08 13:06:56 +00:00
Rafael Espindola 778769aafb implement unconditional branches
fix select.ll

llvm-svn: 30186
2006-09-08 12:47:03 +00:00
Evan Cheng 7348403d42 Remove TEST64mr. It's same as TEST64rm since and is commutative.
llvm-svn: 30178
2006-09-08 06:56:55 +00:00
Evan Cheng 11b0a5dbd4 Committing X86-64 support.
llvm-svn: 30177
2006-09-08 06:48:29 +00:00
Nate Begeman c9db83306f We actually do support object file writing, so don't return true (error)
llvm-svn: 30173
2006-09-08 03:42:15 +00:00
Evan Cheng 89c5d04b9b - Identify a vector_shuffle that can be turned into an undef, e.g.
shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).

llvm-svn: 30171
2006-09-08 01:50:06 +00:00
Jim Laskey ae92ce8798 1. Remove condition on delete.
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169
2006-09-07 23:39:26 +00:00
Devang Patel 0142cd129e Untabify.
llvm-svn: 30168
2006-09-07 23:29:19 +00:00
Devang Patel b8164e6131 Use iterative do-while loop instead of recursive DFSPass calls to
reduce amount of stack space used at runtime.

llvm-svn: 30167
2006-09-07 23:22:37 +00:00
Chris Lattner 2785d55446 add a new value for the command line optn
llvm-svn: 30165
2006-09-07 22:32:28 +00:00
Chris Lattner b9e0a9e82f Fix a cross-build issue. The asmsyntax shouldn't be affected by the build
host, it should be affected by the target.  Allow the command line option to
override in either case.

llvm-svn: 30164
2006-09-07 22:29:41 +00:00
Jim Laskey 261779bb45 Make target asm info a property of the target machine.
llvm-svn: 30162
2006-09-07 22:06:40 +00:00
Jim Laskey 0e83541f8b Break out target asm info into separate files.
llvm-svn: 30161
2006-09-07 22:05:02 +00:00
Chris Lattner c465046e65 Throttle back tail duplication to avoid creating really ugly sequences of code.
For Transforms/TailDup/if-tail-dup.ll, f.e., it produces:

_foo:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        testl $1, %ecx
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%eax)
LBB1_2: #cond_next
        testl $2, %ecx
        je LBB1_4       #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%eax)
LBB1_4: #cond_next10
        testl $4, %ecx
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%eax)
LBB1_6: #cond_next18
        testl $8, %ecx
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%eax)
        ret
LBB1_8: #return
        ret

instead of:

_foo:
        movl 4(%esp), %eax
        testl $2, %eax
        sete %cl
        movl 8(%esp), %edx
        testl $1, %eax
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%edx)
        testb %cl, %cl
        jne LBB1_4      #cond_next10
        jmp LBB1_3      #cond_true6
LBB1_2: #cond_next
        testb %cl, %cl
        jne LBB1_4      #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%edx)
        testl $4, %eax
        je LBB1_6       #cond_next18
        jmp LBB1_5      #cond_true14
LBB1_4: #cond_next10
        testl $4, %eax
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%edx)
        testl $8, %eax
        je LBB1_8       #return
        jmp LBB1_7      #cond_true22
LBB1_6: #cond_next18
        testl $8, %eax
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%edx)
        ret
LBB1_8: #return
        ret

llvm-svn: 30158
2006-09-07 21:30:15 +00:00
Chris Lattner dc4ff5311f Eliminate X86ISD::TEST, using X86ISD::CMP instead. Match X86ISD::CMP patterns
using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.

llvm-svn: 30156
2006-09-07 20:33:45 +00:00
Chris Lattner 1b7f09cdf7 Some notes on better load folding we could do
llvm-svn: 30155
2006-09-07 20:32:01 +00:00
Evan Cheng a9411c0977 Consistency.
llvm-svn: 30152
2006-09-07 19:03:48 +00:00
Evan Cheng 95b3dde8bb Fix pasto that was breaking x86 tests.
llvm-svn: 30151
2006-09-07 18:50:20 +00:00
Chris Lattner 721fc38342 Add new option to leave asm names alone
llvm-svn: 30149
2006-09-07 18:20:41 +00:00
Jim Laskey c7abe471fe Make the x86 asm flavor part of the subtarget info.
llvm-svn: 30146
2006-09-07 12:23:47 +00:00
Chris Lattner 707339a57b Fix CodeGen/Generic/2006-09-06-SwitchLowering.ll, a bug where SDIsel inserted
too many phi operands when lowering a switch to branches in some cases.

llvm-svn: 30142
2006-09-07 01:59:34 +00:00
Evan Cheng 7f3f0973e6 Clean up.
llvm-svn: 30140
2006-09-07 01:17:57 +00:00
Evan Cheng 4c7a3fbdea Watch out for variable_ops instructions.
llvm-svn: 30135
2006-09-06 20:32:45 +00:00
Evan Cheng ac22e54131 Variable ops instructions may ignore the last few operands for code emission.
llvm-svn: 30134
2006-09-06 20:24:14 +00:00
Jim Laskey ef94ebb666 Oops - forgot to update banner.
llvm-svn: 30131
2006-09-06 19:21:41 +00:00
Jim Laskey 681ecbb3b3 Separate target specifc asm properties from asm printers.
llvm-svn: 30127
2006-09-06 18:35:33 +00:00
Jim Laskey a6211dcdad Separate target specific asm properties from the asm printers.
llvm-svn: 30126
2006-09-06 18:34:40 +00:00
Rafael Espindola abd8bcbe5e add the orr instruction
llvm-svn: 30125
2006-09-06 18:03:12 +00:00
Evan Cheng ddfb10b5af Only call isUse/isDef on register operands
llvm-svn: 30122
2006-09-05 20:32:06 +00:00
Chris Lattner 2656932979 Bugfix to work with the two-addr changes that have been made in the tree recently
llvm-svn: 30121
2006-09-05 20:27:32 +00:00
Chris Lattner 2cb238320d Only call isUse/isDef on register operands
llvm-svn: 30118
2006-09-05 20:19:27 +00:00