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2488 Commits

Author SHA1 Message Date
Chris Lattner
098648af6a There is no reason to print ValueType here 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14425 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-26 19:36:34 +00:00
Misha Brukman
34fa8714a4 Allow debugging machine instrs (by printout) before/after isel and regalloc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14416 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 19:57:47 +00:00
Misha Brukman
c6cc10f48f Combine several if stmts with returns into an if-then-elseif-else chain. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14414 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 19:24:52 +00:00
Misha Brukman
d47bbf7ce5 Do not move any values into registers for a void return (there isn't anything). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 19:04:27 +00:00
Misha Brukman
1cbb3ee75f Convert tabs to spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14412 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 18:45:07 +00:00
Misha Brukman
972569a22f Fix opcode: no immediate in an `or r1, r2, r3' (all registers) instr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14411 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 18:36:53 +00:00
Misha Brukman
2bf183c092 * Be consistent about MachineBB labels and references to them in instr stream 
* Use MachineBB's built-in numbering system instead of reinventing one


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 15:42:10 +00:00
Misha Brukman
22e12076e9 * Initialize the entire array statically, not member-at-a-time 
* Remove x86-specific comment re: intel vs. at&t assembly syntax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 15:11:34 +00:00
Misha Brukman
9ecf3bf708 Fix bug in previous checkin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14405 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 14:57:19 +00:00
Misha Brukman
911afde4ae * Wrap long lines 
* Replace silent fall-through FIXME comments with an error to cerr and an abort
* No need to set size of statically initialized arrays


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14404 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 14:50:41 +00:00
Misha Brukman
179d97cfa3 Excise X86-specific comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14403 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 14:13:26 +00:00
Tanya Lattner
b140762a45 Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 00:13:11 +00:00
Misha Brukman
75afe1f904 Add option to print out machine code before register allocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14387 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:55:01 +00:00
Misha Brukman
f3e50bea06 Use DEBUG() guard for printing out debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14386 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:54:05 +00:00
Misha Brukman
e327e49913 Add a `break' in the switch/case statement between the int/fp sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14385 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:53:24 +00:00
Misha Brukman
7f484a5fff * Lowercase the register names 
* Parenthesize assert() expressions correctly
* Fix spacing around for() and if() statements


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14384 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:51:00 +00:00
Misha Brukman
f54ef97abc * LowercaseString moved to StringExtras.h 
* Wrap long line to 80 cols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14382 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:38:20 +00:00
Misha Brukman
ca428df792 * Tabs to spaces 
* Send an error message to std::cerr before abort()ing


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14381 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:19:36 +00:00
Misha Brukman
46fd00aec6 * Tabs to spaces 
* Remove unnecessary parens, braces, clean up code layout


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14379 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 23:04:11 +00:00
Misha Brukman
fadb82f920 Unindent some more code to be consistent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14377 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 22:00:15 +00:00
Misha Brukman
1916bf9427 Unindent some code, it only needs 2 spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14376 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 21:56:15 +00:00
Misha Brukman
98649d1796 In emitting code for a GEP instr, iterate over GEPTypes because there is one 
more operand in GEPOps than there are types in GEPTypes: the pointer that is the
first operand of the GEP instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14375 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 21:54:47 +00:00
Brian Gaeke
57ff2e3ee7 Add FSTOD and FDTOS conversion instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14372 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 21:22:09 +00:00
Brian Gaeke
495a0974f4 Support cast float to float, cast double to float, and cast float to double. 
(It's not yet clear how to copy doubles from register to register.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14371 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 21:22:08 +00:00
Misha Brukman
05794498d9 * Order #includes 
* Use the DEBUG() guard for debug printouts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14367 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 17:31:42 +00:00
Brian Gaeke
60c73e4f23 Make the double-fp pseudo registers be "NamedRegs". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14366 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 09:23:21 +00:00
Brian Gaeke
13dc433df3 Fix a dyn_cast in copyConstantToRegister which should have been a cast. 
Compactify the code that emits copies of constant ints into registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14365 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 09:17:47 +00:00
Brian Gaeke
be81e82afc The long integer pseudo-regs are history. So long, we hardly knew ye. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14364 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 08:55:21 +00:00
Brian Gaeke
c7fd0f4675 Use correct add*Imm form in more BuildMI calls. 
Fix bug in emitGEPOperation where we weren't passing MBB, IP to getReg.
(hey, wouldn't a constant expression lowering pass be cool? huh huhuhuh)
Fix bug in emitGEPOperation where we might try to OR a constant into a
register which was too big to fit in the immediate field.
Support and, or, xor of longs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14363 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 08:55:09 +00:00
Brian Gaeke
af0492ea52 Rename the load and store opcodes. The non-fp ones only have one 
variant worth worrying about; the fp ones have two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14362 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 07:37:12 +00:00
Brian Gaeke
e7f9e0b539 Rename the load and store opcodes. The non-fp ones only have one 
variant worth worrying about; the fp ones have two.
Add fp stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14361 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 07:36:59 +00:00
Brian Gaeke
4473303453 Rename the load and store opcodes. The non-fp ones only have one 
variant worth worrying about; the fp ones have two.
Stub out the case analysis of int-to-fp casts (no code yet).
I think the number of operands passed to BuildMI for loads was wrong.
Support load and store of float and double.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14360 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 07:36:48 +00:00
Brian Gaeke
7548a540f7 Strange as it may sound, we'll not use LDD/STD to store longs. For reasons of 
representational consistency, we want to address the halves of each 64-bit value
separately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14356 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 06:44:57 +00:00
Brian Gaeke
00e514ea6a Support constant cast expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14355 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-24 06:33:00 +00:00
Brian Gaeke
a846b729e4 Make the most commonly preselected instructions add to the names of the 
instructions they augment, instead of replacing them.  It's good for debugging,
and it's OK for the sparcv9 backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14353 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-23 21:41:32 +00:00
Brian Gaeke
f54d912e32 Add pseudo-registers and register class for 64-bit integer values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14332 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-22 20:14:41 +00:00
Misha Brukman
0280aa9795 Order #includes as per style guide. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14305 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:54:40 +00:00
Misha Brukman
f90e402af8 Direct declaration of namespace-ified globals does not work, must enclose 
them with a namespace declaration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14303 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:44:12 +00:00
Misha Brukman
53594deff4 Specify variables' namespace directly instead of using an enclosing namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14302 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:21:49 +00:00
Misha Brukman
e67d5fb6fd Move implemented interface header up to the top. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14301 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:20:23 +00:00
Misha Brukman
3d357441bf Spell out `NoFramePointerElim'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14300 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:18:48 +00:00
Misha Brukman
66d6ee4247 Spell out `NoFramePointerElim' for readability. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14299 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:17:44 +00:00
Misha Brukman
83eaa0b567 Use the common `NoFPElim' setting instead of our own. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14298 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:10:24 +00:00
Misha Brukman
0fb5a66760 Implement `NoFPElim' in a target-agnostic fashion so it can be shared. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14297 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 21:08:45 +00:00
Misha Brukman
2fec9905aa * Make indentation consistent at 2 chars 
* Doxygenify function comments
* Wrap code at 80 cols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14295 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 20:22:03 +00:00
Misha Brukman
1e32f79d20 This file is no longer applicable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14294 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 20:17:41 +00:00
Misha Brukman
8c9f520b33 llvm/IntrinsicLowering.h => llvm/CodeGen/IntrinsicLowering.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14292 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 18:30:31 +00:00
Misha Brukman
a2916ce49a Intrinsic::isnan has gone away, support for it commented out. 
Intrinsic::isunordered has arrived, and we just use the standard lowering
pass for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14290 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 17:58:36 +00:00
Misha Brukman
422791fa0b Convert tabs to spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14289 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 17:41:12 +00:00
Misha Brukman
358829f151 Type::getPrimitiveID() -> getTypeID() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14288 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 17:25:55 +00:00
Misha Brukman
d71bd56caa Type::getPrimitiveID() -> getTypeID() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14287 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 17:19:08 +00:00
Misha Brukman
5dfe3a9c3b Initial revision 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14283 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-21 16:55:25 +00:00
Chris Lattner
3048373748 Move the IntrinsicLowering header into the CodeGen directory, as per PR346 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14266 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-20 07:49:54 +00:00
Brian Gaeke
9d2427c074 .zero doesn't work in the Solaris assembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14231 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 08:59:16 +00:00
Brian Gaeke
a3c57624c0 Get rid of selects the easy way 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14230 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 08:46:15 +00:00
Brian Gaeke
cfaf22445c Make visitAllocaInst() look more like its X86 counterpart. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14229 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 08:45:52 +00:00
Brian Gaeke
4f217fdd10 Mess around with allocation order. In particular, I think we ought to be 
using the local & in regs first because they are not clobbered by calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14228 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 08:19:08 +00:00
Brian Gaeke
fbaae01269 JMPL has a delay slot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14227 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 08:18:54 +00:00
Brian Gaeke
0735920173 Clean up the commented-out F3_3 stuff. 
Replace it with a working class for FP instrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14226 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 06:28:21 +00:00
Brian Gaeke
f89cc655ab Fix jmpl. 
Add some FP moves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14225 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 06:28:10 +00:00
Brian Gaeke
ceb224148e Support printing base+offset pairs where the offset is a register. 
Use this for printing the jmpl indirect-call instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14224 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 06:27:59 +00:00
Brian Gaeke
9d67ea0b61 Support intrinsic calls (although no particular intrinsics are supported yet). 
Support indirect calls.
Support returning a float value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14223 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 06:27:48 +00:00
Brian Gaeke
562d5b0f6d Add load instructions for floating-point registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14217 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 05:19:27 +00:00
Brian Gaeke
c93a75223d Support alloca instructions. 
Support copying floating-point constants to registers.
Add assertion to visitCallInst to abort if we hit a NULL calledFunction, for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14216 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 05:19:16 +00:00
Chris Lattner
667ea024b5 Codegen sub C, X a little bit better for register pressure. Instead of 
mov REG, C
sub REG, X

generate:

neg X
add X, C

which uses one less reg


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14213 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 00:50:37 +00:00
Chris Lattner
a6f9fe6dbc Fold setcc instructions into select and branches that are not in the same BB as 
the setcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14212 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-18 00:29:22 +00:00
Brian Gaeke
6713d988a4 Make storeRegToStackSlot slightly shorter. 
Make copyRegToReg return 1 instead of -1.
Edit a comment in emitPrologue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14211 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 22:34:48 +00:00
Brian Gaeke
070bb4a8da Set the isBranch and isTerminator flags on branch instructions correctly. 
Add a FIXME about the (currently unused) JMPL instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14210 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 22:34:29 +00:00
Brian Gaeke
8308d04dbc Emit stores correctly; don't fail an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14209 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 22:34:19 +00:00
Brian Gaeke
6c868a4c17 Support generating machine instructions for Phi nodes (based on x86, but with 
modifications for 1 LLVM BB --> many MBBs).
Fix store operand order: make it always be Base, Offset, SrcReg (think
"[ Base + Offset ] = SrcReg").
Rewrite visitBranchInst() to be even dumber (but working) -- give up on
the branch fallthrough trick, for the time being.
Make visitSetCondInst() work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14208 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 22:34:08 +00:00
Brian Gaeke
fc7fa31211 Recognize more branches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14207 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 22:33:57 +00:00
Chris Lattner
ccd9796a46 Do not fold loads into instructions if it is used more than once. In particular 
we do not want to fold the load in cases like this:

  X = load
    = add A, X
    = add B, X


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14204 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 22:15:25 +00:00
Brian Gaeke
09c1309814 Use addGlobalAddress and addMBB for call & branch targets instead of addPCDisp. 
Abort if we see a PCRelativeDisp MachineOperand, to be safe. This matches
the X86 backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14202 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 19:39:23 +00:00
Chris Lattner
f70c22b019 Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14201 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-17 18:19:28 +00:00
Chris Lattner
4adf066f99 Remove support for llvm.isnan. Alkis wins :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14189 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 21:48:07 +00:00
Chris Lattner
dc5724478e Add basic support for the isunordered intrinsic. The isnan stuff still needs to go 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14185 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 21:36:44 +00:00
Brian Gaeke
d6a1053745 Fix thinko in visitor... ShiftInsts should currently be delegated 
to visitBinaryOperator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14182 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 21:09:46 +00:00
Brian Gaeke
f405280acb I think we'll use the standard lowering passes for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14179 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 20:37:12 +00:00
Brian Gaeke
e14e338724 Fix bug generating code for void call instructions: don't call 
getReg() on void value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14178 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 20:06:32 +00:00
Brian Gaeke
5eb64744d0 Squash a warning from the Solaris assembler by aligning the stack 
on a double-word boundary instead of a single-word boundary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14177 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 19:53:10 +00:00
Brian Gaeke
446ae11d7c Allow special-casing of operand printing based on opcode. Print 
non-register, non-immed. arguments to SETHI and OR using %hi() and
%lo() respectively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14176 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 19:52:59 +00:00
Brian Gaeke
9df92825e1 Support constant GEP expressions. 
Support copying long constants to register pairs.
Support copying ConstantPointerNulls and ConstantPointerRefs to registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14175 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-15 19:16:07 +00:00
Misha Brukman
5478c7a18a Add file comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14172 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-14 15:13:59 +00:00
Brian Gaeke
f3210d2c53 Make -print-machineinstrs even stronger. You get to see the final code after 
peepholing, and make it work the same way in the JIT as in LLC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14170 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-14 05:05:45 +00:00
Chris Lattner
01cdb1b367 By far, one of the most common uses of isnan is to make 'isunordered' 
comparisons.  In an 'isunordered' predicate, which looks like this at
the LLVM level:

        %a = call bool %llvm.isnan(double %X)
        %b = call bool %llvm.isnan(double %Y)
        %COM = or bool %a, %b

We used to generate this code:

        fxch %ST(1)
        fucomip %ST(0), %ST(0)
        setp %AL
        fucomip %ST(0), %ST(0)
        setp %AH
        or %AL, %AH

With this patch, we generate this code:

        fucomip %ST(0), %ST(1)
        fstp %ST(0)
        setp %AL

Which should make alkis happy.  Tested as X86/compare_folding.llx:test1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14148 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 05:33:49 +00:00
Chris Lattner
57790422ca Fix bug in previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14146 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 05:22:44 +00:00
Chris Lattner
899dbdcdb0 No really, these are dead now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14145 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 04:50:14 +00:00
Chris Lattner
0ca2c8e02c Now that compare instructions aren't lumped in with the other twoargfp instructions, 
we can get rid of the FpUCOM/FpUCOMi pseudo instructions, which makes stuff simpler
and faster.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14144 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 04:49:02 +00:00
Chris Lattner
ab8deccb82 Introduce a new FP instruction type to separate the compare cases from the 
twoarg cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 04:41:24 +00:00
Chris Lattner
b4fe76cbb5 Add direct support for the isnan intrinsic, implementing test/Regression/CodeGen/X86/isnan.llx 
testcase


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14141 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 04:31:10 +00:00
Chris Lattner
665e661384 Add support for the setp instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14140 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 04:30:06 +00:00
Chris Lattner
d62d5d7e5b Split compare instruction handling OUT of handleTwoArgFP into handleCompareFP. 
This makes the code much simpler, and the two cases really do belong apart.
Once we do it, it's pretty obvious how flawed the logic was for A != A case,
so I fixed it (fixing PR369).

This also uses freeStackSlotAfter instead of inserting an fxchg then
popStackAfter'ing in the case where there is a dead result (unlikely, but
possible), producing better code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14139 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 04:25:06 +00:00
Brian Gaeke
46bf5afa01 Turn loads of ConstantPointerNulls into loads of zero... don't spill 
them into the constant pool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14128 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-11 02:03:48 +00:00
Chris Lattner
32305f7763 Fix the fixed stack offset, patch contributed by Vladimir Prus 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14110 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-10 06:19:25 +00:00
Brian Gaeke
7fa84b70c3 Encode %fsr correctly; don't fail an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14103 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-09 21:54:59 +00:00
Brian Gaeke
40e7fdc05a Fix encoding of ST*FSR instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14102 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-09 21:54:58 +00:00
Brian Gaeke
e8a6bee3c9 Fix assertion failure message to have the right method name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14101 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-09 20:44:42 +00:00
John Criswell
6b5bd5857d Fix for PR#366. We use getClassB() so that we can handle cast instructions 
that cast to bool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14096 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-09 15:18:51 +00:00
Brian Gaeke
8e6e7c90ce Fix a minor bug in the map - since this pass adds a global symbol, it must be 
accounted for in the map (at least, in its current format).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14075 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-08 20:08:30 +00:00
Brian Gaeke
777a1cde66 Add a TmpInstruction ctor that doesn't take a MCFI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14073 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-08 18:52:46 +00:00
Brian Gaeke
e7c776118c Fix up some spacing & fix a typo in an assertion in cpValue2Value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14027 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-04 20:51:40 +00:00
Chris Lattner
994d7ae649 This file is obsolete 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14005 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-04 00:15:21 +00:00
Brian Gaeke
8c4174a0a7 Add new internal-global-symbol mapping info pass... may its life be short 
and sweet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13983 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-03 05:03:37 +00:00
Brian Gaeke
5821595693 Add new mapping info pass, when EmitMappingInfo is on. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13981 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-03 05:03:01 +00:00
Brian Gaeke
7d8793a3a5 Fix big mistake in my last checkin... the big question is, how did I ever 
get this to link before?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13980 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-03 05:03:00 +00:00
Brian Gaeke
36e5254e4d Add decl. for new mapping info pass factory method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13979 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-03 05:02:59 +00:00
Brian Gaeke
498231bc60 Collapse together the abstract superclass TargetRegInfo and SparcV9RegInfo, its 
only concrete implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13977 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-03 02:45:09 +00:00
Chris Lattner
8fcf797f79 <alloca.h> on cygwin pulls in a ton of stuff (macros and function protos) 
that we REALLY don't want in the CBE code.

With this fix, the CBE passes all of the MultiSource tests on cygwin that
it does on linux.  Yaay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13975 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 23:10:26 +00:00
Chris Lattner
98107ffd1e Adjust to the new TargetMachine interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13957 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 06:06:20 +00:00
Chris Lattner
d6ad847c7c Adjust to new TM interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13954 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:56:04 +00:00
Chris Lattner
bdf1400dd4 Method has been inlined into all callers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13953 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:55:48 +00:00
Chris Lattner
d029cd2d5a Convert to the new TargetMachine interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13952 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:55:25 +00:00
Chris Lattner
289809d139 Stubs are no longer needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13951 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:53:52 +00:00
Chris Lattner
143e0ea43d Adjust to new TM interfaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13949 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:47:26 +00:00
Brian Gaeke
e82706b3a0 There is no "mcff" here; delete the confusing comments that refer to it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13911 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 08:29:16 +00:00
Brian Gaeke
f561b08d67 Transform an occurrence of if(...) { assert (0) }. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13908 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:34:01 +00:00
Brian Gaeke
25d4b54f93 Reduce the amount of LLVM Values for which we save reg. allocator 
state. Also, save the state for the incoming register of each phi
node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13906 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:08:43 +00:00
Brian Gaeke
a7afac29d0 Rename verifySavedState to dumpSavedState. Give it a new comment. 
Call it at a more appropriate point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13905 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 04:22:24 +00:00
Brian Gaeke
2ffbb6d20a Insert machine instructions generated for Phi nodes into their 
corresponding MachineCodeForInstruction vectors.

I need to be able to get the register allocated for the thing which is
called PhiCpRes in this code; this should make that task easier, plus,
Phi nodes are no longer "special" in the sense that their
MachineCodeForInstruction is empty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13904 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 03:33:49 +00:00
Brian Gaeke
84d404b0ed Remove unused #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13899 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 23:26:13 +00:00
Brian Gaeke
7916c92a2b Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13898 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 23:10:20 +00:00
Brian Gaeke
1c334a3eea Trim whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13897 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 22:49:51 +00:00
Brian Gaeke
20ab71086e Give InsertCodeForPhis() a new documentation comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13896 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 22:20:59 +00:00
Tanya Lattner
20890832ea updates to ModuloSched 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13881 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 20:14:12 +00:00
Brian Gaeke
fece1822bf Give PhiCp nodes better names in many cases. 
Simplify InsertPhiElimInstructions(), and give it a better doxygen comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13880 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 19:34:00 +00:00
Brian Gaeke
b985158c35 Make debugging output with -print-machineinstrs more useful: always print out 
the transformed LLVM code which is the input to the instruction selector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13879 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 19:33:59 +00:00
Chris Lattner
9d1af97d02 Fix the big regression that has been killing the nightly tester these last 
few days.  Apparently the old symbol table used to auto rename collisions in
the type symbol table and the new one does not.  It doesn't really make sense
for the new one to do so, so we just make the client do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13877 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:47:27 +00:00
Chris Lattner
d06a549384 Minor changes. Switch to a SymbolTable remove that does not take linear time 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13874 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:30:51 +00:00
Brian Gaeke
aeb3c80e8d Make comment lines stick out less. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13858 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 21:41:48 +00:00
Chris Lattner
85acba6d58 Fix PR344: the incorrect remove was being used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13790 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 17:20:52 +00:00
Tanya Lattner
ebac64534c Adding scheduling class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13783 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 06:27:36 +00:00
Tanya Lattner
4cffb588f5 Updating my cvs versions. THis is still in progress and much will be changed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13782 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 06:27:18 +00:00
Brian Gaeke
1812268126 Add a (not very meaningful) default constructor for AllocInfo objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13773 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 20:43:47 +00:00
Reid Spencer
9231ac8b6f Convert to SymbolTable's new iteration interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13754 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:53:40 +00:00
Reid Spencer
119b342b20 Remove use of Type::TypeTy from an assert. It will go away soon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13748 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:50:52 +00:00
Chris Lattner
99c59e8e21 Add support for accurate garbage collection to the LLVM code generators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13696 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:23:35 +00:00
Chris Lattner
df04097f87 Add some notes to myself, no functional changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13695 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:23:12 +00:00
Chris Lattner
bbdbf30238 minor wording change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13694 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:22:55 +00:00
Brian Gaeke
79333da2bb Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13643 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 05:10:06 +00:00
Chris Lattner
433e25a920 Fix to make the CBE always emit comparisons inline. Hopefully this will 
fix the really bad code we're getting on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13609 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-20 20:25:50 +00:00
Brian Gaeke
ceabd97423 Fix a bug in outputting branches to constant PCs. Since the PC is supplied as 
a full 64-bit address, it must be adjusted to fit in the branch instruction's
immediate field. (This is only used in the reoptimizer, for now.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-20 07:43:40 +00:00
Brian Gaeke
a900452d37 Minor simplification: eliminate a dyn_cast. 
Fix a typo in a debug message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13607 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-19 21:30:01 +00:00
Brian Gaeke
09015d9468 Don't keep track of references to LLVM BasicBlocks while emitting; use 
MachineBasicBlocks instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13568 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 06:54:58 +00:00
Brian Gaeke
3fb5d1a6cc Support MachineBasicBlock operands on RawFrm instructions. 
Get rid of separate numbering for LLVM BasicBlocks; use the automatically
generated MachineBasicBlock numbering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13567 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 06:54:57 +00:00
Brian Gaeke
9f088e481c Generate branch machine instructions with MachineBasicBlock operands instead of 
LLVM BasicBlock operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13566 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 06:54:56 +00:00
Chris Lattner
b7cb9ffd34 Two more improvements for null pointer handling: storing a null pointer 
and passing a null pointer into a function.

For this testcase:

void %test(int** %X) {
  store int* null, int** %X
  call void %test(int** null)
  ret void
}

we now generate this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov DWORD PTR [%EAX], 0
        mov DWORD PTR [%ESP], 0
        call test
        add %ESP, 12
        ret

instead of this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, 0
        mov DWORD PTR [%EAX], %ECX
        mov %EAX, 0
        mov DWORD PTR [%ESP], %EAX
        call test
        add %ESP, 12
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13558 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 15:26:48 +00:00
Chris Lattner
9f1b531090 Second half of my fixed-sized-alloca patch. This folds the LEA to compute 
the alloca address into common operations like loads/stores.

In a simple testcase like this (which is just designed to excersize the
alloca A, nothing more):

int %test(int %X, bool %C) {
        %A = alloca int
        store int %X, int* %A
        store int* %A, int** %G
        br bool %C, label %T, label %F
T:
        call int %test(int 1, bool false)
        %V = load int* %A
        ret int %V
F:
        call int %test(int 123, bool true)
        %V2 = load int* %A
        ret int %V2
}

We now generate:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %CL, BYTE PTR [%ESP + 20]
***     mov DWORD PTR [%ESP + 8], %EAX
        mov %EAX, OFFSET G
        lea %EDX, DWORD PTR [%ESP + 8]
        mov DWORD PTR [%EAX], %EDX
        test %CL, %CL
        je .LBB2 # PC rel: F
.LBB1:  # T
        mov DWORD PTR [%ESP], 1
        mov DWORD PTR [%ESP + 4], 0
        call test
***     mov %EAX, DWORD PTR [%ESP + 8]
        add %ESP, 12
        ret
.LBB2:  # F
        mov DWORD PTR [%ESP], 123
        mov DWORD PTR [%ESP + 4], 1
        call test
***     mov %EAX, DWORD PTR [%ESP + 8]
        add %ESP, 12
        ret

Instead of:

test:
        sub %ESP, 20
        mov %EAX, DWORD PTR [%ESP + 24]
        mov %CL, BYTE PTR [%ESP + 28]
***     lea %EDX, DWORD PTR [%ESP + 16]
***     mov DWORD PTR [%EDX], %EAX
        mov %EAX, OFFSET G
        mov DWORD PTR [%EAX], %EDX
        test %CL, %CL
***     mov DWORD PTR [%ESP + 12], %EDX
        je .LBB2 # PC rel: F
.LBB1:  # T
        mov DWORD PTR [%ESP], 1
        mov %EAX, 0
        mov DWORD PTR [%ESP + 4], %EAX
        call test
***     mov %EAX, DWORD PTR [%ESP + 12]
***     mov %EAX, DWORD PTR [%EAX]
        add %ESP, 20
        ret
.LBB2:  # F
        mov DWORD PTR [%ESP], 123
        mov %EAX, 1
        mov DWORD PTR [%ESP + 4], %EAX
        call test
***     mov %EAX, DWORD PTR [%ESP + 12]
***     mov %EAX, DWORD PTR [%EAX]
        add %ESP, 20
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13557 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 15:12:43 +00:00
Chris Lattner
cb2fd557ee Substantially improve code generation for address exposed locals (aka fixed 
sized allocas in the entry block).  Instead of generating code like this:

entry:
  reg1024 = ESP+1234
... (much later)
  *reg1024 = 17


Generate code that looks like this:
entry:
  (no code generated)
... (much later)
  t = ESP+1234
  *t = 17

The advantage being that we DRAMATICALLY reduce the register pressure for these
silly temporaries (they were all being spilled to the stack, resulting in very
silly code).  This is actually a manual implementation of rematerialization :)

I have a patch to fold the alloca address computation into loads & stores, which
will make this much better still, but just getting this right took way too much time
and I'm sleepy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13554 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 07:40:27 +00:00
Chris Lattner
2b10b08ad6 Pass boolean constants into function calls more efficiently, generating: 
mov DWORD PTR [%ESP + 4], 1

instead of:

        mov %EAX, 1
        mov DWORD PTR [%ESP + 4], %EAX


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13494 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 16:35:04 +00:00
Chris Lattner
c81e6bae88 Fix a fairly serious pessimizaion that was preventing us from efficiently 
compiling things like 'add long %X, 1'.  The problem is that we were switching
the order of the operands for longs even though we can't fold them yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13451 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-10 15:15:55 +00:00