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141 Commits

Author SHA1 Message Date
Evan Cheng 94f04c6fc9 Reflects the chanegs made to PredicateOperand. 
llvm-svn: 37898
 2007-07-05 07:18:20 +00:00
Dan Gohman e8c1e428f2 Revert the earlier change that removed the M_REMATERIALIZABLE machine 
instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).

llvm-svn: 37728
 2007-06-26 00:48:07 +00:00
Dan Gohman 9e82064924 Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad 
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.

llvm-svn: 37644
 2007-06-19 01:48:05 +00:00
Evan Cheng a7ca624028 Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37643
 2007-06-19 01:26:51 +00:00
Evan Cheng 36b1f5476e Instructions with unique labels or embedded jumptables cannot be duplicated during ifcvt. 
llvm-svn: 37606
 2007-06-15 21:15:00 +00:00
Dale Johannesen c68554683d Handle blocks with 2 unconditional branches in AnalyzeBranch. 
llvm-svn: 37571
 2007-06-13 17:59:52 +00:00
Evan Cheng 5514bbef46 Add a utility routine to check for unpredicated terminator instruction. 
llvm-svn: 37528
 2007-06-08 21:59:56 +00:00
Evan Cheng 6740da9407 Fix ARM condition code subsumission check. 
llvm-svn: 37517
 2007-06-08 09:14:47 +00:00
Evan Cheng 842be09d86 Stupid cut-n-paste bug caused me soooo much grief. Why wasn't there a compilation warning? I blame it on the FE folks. 
llvm-svn: 37484
 2007-06-07 01:37:54 +00:00
Evan Cheng 2d91a4fd6a Add missing const qualifiers. 
llvm-svn: 37342
 2007-05-29 18:42:18 +00:00
Evan Cheng 1d764eca98 Hooks for predication support. 
llvm-svn: 37308
 2007-05-23 07:22:05 +00:00
Evan Cheng 8c8afb27d7 Fix some -march=thumb regressions. tBR_JTr is not predicable. 
llvm-svn: 37272
 2007-05-21 23:17:32 +00:00
Evan Cheng 147b334b6a BlockHasNoFallThrough() now returns true if block ends with a return instruction; AnalyzeBranch() should ignore predicated instructionsd. 
llvm-svn: 37268
 2007-05-21 18:56:31 +00:00
Evan Cheng e20dd92792 RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted. 
llvm-svn: 37193
 2007-05-18 00:18:17 +00:00
Evan Cheng dcff2eb0e8 PredicateInstruction returns true if the operation was successful. 
llvm-svn: 37124
 2007-05-16 21:53:07 +00:00
Evan Cheng e2762c3d68 Removed isPredicable(). 
llvm-svn: 37119
 2007-05-16 20:50:23 +00:00
Evan Cheng ad3aac71ce Hooks for predication support. 
llvm-svn: 37093
 2007-05-16 02:01:49 +00:00
Evan Cheng 0f7cbe8370 Add PredicateOperand to all ARM instructions that have the condition field. 
llvm-svn: 37066
 2007-05-15 01:29:07 +00:00
Dale Johannesen 4a00cf3fc4 Rewrite of Thumb constant islands handling (exact allowance for padding 
around islands and jump tables).

llvm-svn: 36573
 2007-04-29 19:19:30 +00:00
Evan Cheng 910c80851e Rename findRegisterUseOperand to findRegisterUseOperandIdx to avoid confusion. 
llvm-svn: 36483
 2007-04-26 19:00:32 +00:00
Evan Cheng 8cd224e81c Relex assertions to account for additional implicit def / use operands. 
llvm-svn: 36430
 2007-04-25 07:12:14 +00:00
Anton Korobeynikov fb80151c42 Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.

llvm-svn: 36146
 2007-04-16 18:10:23 +00:00
Evan Cheng e8315fe3f5 Inverted logic. 
llvm-svn: 35619
 2007-04-03 06:44:25 +00:00
Evan Cheng 7dbbd00b06 findRegisterUseOperand() changed. 
llvm-svn: 35366
 2007-03-26 22:41:48 +00:00
Evan Cheng 9bb01c9f4f Fix naming inconsistencies. 
llvm-svn: 35163
 2007-03-19 07:48:02 +00:00
Evan Cheng ec13f826a2 Spill / restore should avoid modifying the condition register. 
llvm-svn: 33971
 2007-02-07 00:06:56 +00:00
Evan Cheng 95b85e34ff Copy and paste bug. 
llvm-svn: 33658
 2007-01-30 08:22:33 +00:00
Evan Cheng ce8fa3ed83 Misseed thumb jumptable branch. 
llvm-svn: 33656
 2007-01-30 08:03:06 +00:00
Evan Cheng 760c68b8af Factor GetInstSize() out of constpool island pass. 
llvm-svn: 33644
 2007-01-29 23:45:17 +00:00
Jim Laskey f9e5445ed4 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Evan Cheng 10043e215b ARM backend contribution from Apple. 
llvm-svn: 33353
 2007-01-19 07:51:42 +00:00
Evan Cheng 20350c4025 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
Rafael Espindola ed32883b27 fix warning about missing newline at end of file 
llvm-svn: 31162
 2006-10-24 17:07:11 +00:00
Chris Lattner aaeede0aa2 implement uncond branch insertion, mark branches with isBranch. 
llvm-svn: 31160
 2006-10-24 16:47:57 +00:00
Rafael Espindola 3130a756ef add shifts to addressing mode 1 
llvm-svn: 30291
 2006-09-13 12:09:43 +00:00
Rafael Espindola e45a79a9e2 partial implementation of the ARM Addressing Mode 1 
llvm-svn: 30252
 2006-09-11 17:25:40 +00:00
Rafael Espindola 8c41f99e6f change the addressing mode of the str instruction to reg+imm 
llvm-svn: 29571
 2006-08-08 20:35:03 +00:00
Rafael Espindola e40a7e2aa2 create the raddr addressing mode that matches any register and the frame index 
use raddr for the ldr instruction. This removes a dummy mov from the assembly output
remove SelectFrameIndex
remove isLoadFromStackSlot
remove isStoreToStackSlot

llvm-svn: 29079
 2006-07-10 01:41:35 +00:00
Rafael Espindola f6f5aff038 handle the "mov reg1, reg2" case in isMoveInstr 
llvm-svn: 28945
 2006-06-27 21:52:45 +00:00
Rafael Espindola 27f8bdc7e5 implement minimal versions of 
ARMAsmPrinter::runOnMachineFunction
LowerFORMAL_ARGUMENTS
ARMInstrInfo::isMoveInstr

llvm-svn: 28431
 2006-05-23 02:48:20 +00:00
Rafael Espindola ffdc24b847 added a skeleton of the ARM backend 
llvm-svn: 28301
 2006-05-14 22:18:28 +00:00