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7d057a3fd579a57d9f16a3e366b56df0aff4f486
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1170 Commits

Author SHA1 Message Date
Chris Lattner
7d057a3fd5 Add support for targets without a .zero directive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15894 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 21:38:40 +00:00
Chris Lattner
bfddc2030a Add support for alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15888 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 19:14:29 +00:00
Chris Lattner
0554fb6b9c Use a designated comment character when printing comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15880 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 16:27:05 +00:00
Chris Lattner
e85a5a9f40 Add support for targets that have .quad, drop extra tab inserted 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15870 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:48:16 +00:00
Chris Lattner
1b7e2356ac Implement emitGlobalConstant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15868 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:36:49 +00:00
Chris Lattner
af2bf0ab30 We now allow targets to use any prefix they want for global symbols. Lets 
hear it for ".".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15863 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 06:06:19 +00:00
Chris Lattner
ed1ff01639 Some asmwriters want an _ prefix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15845 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 02:28:26 +00:00
Chris Lattner
a80ba71efe Initial implementation of the asmprinter base class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15838 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 23:15:22 +00:00
Chris Lattner
ad8281607f Move this code to lib/Target/SparcV9/MachineFunctionInfo.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15834 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 22:36:34 +00:00
Chris Lattner
e7f372703a This file is moving to lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15833 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 22:36:10 +00:00
Chris Lattner
85015a0891 Move MachineCodeForInstruction.h and MachineFunctionInfo.h into lib/Target/SparcV9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15830 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:55:02 +00:00
Chris Lattner
753c16c9cb Nuke this file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15829 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:36:40 +00:00
Chris Lattner
e97db86e17 Fold MachineInstrAnnot.cpp into this file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15828 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 21:36:31 +00:00
Brian Gaeke
e6c3dc88ca Add a note that people shouldn't use MachineFunctionInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15823 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-16 18:27:24 +00:00
Chris Lattner
3bba026994 Reduce usage of MRegisterInfo::getRegClass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15784 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:23:09 +00:00
Chris Lattner
078fee3f2e The insertion method returns void now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15779 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:14:31 +00:00
Chris Lattner
3cc03be51a Nuke ifdef'd out code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15777 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:03:57 +00:00
Chris Lattner
26eb14ba51 Stop using CreateStackObject(RegClass*) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15775 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:02:22 +00:00
Chris Lattner
57f1b67c34 These methods no longer take a TargetRegisterClass* operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15774 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 21:56:44 +00:00
Alkis Evlogimenos
8c9b4de574 Make this compile on gc 3.4.1 (static_cast to non-const type was not 
allowed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15766 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 09:18:55 +00:00
Nate Begeman
5de0f7aa14 Elminiate MachineFunction& argument from eliminateFrameIndex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15736 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-14 22:00:10 +00:00
Chris Lattner
c330b68fb7 Split saveCallerSavedRegisters into two methods for clarity, and add comments. 
Add support for targets that must spill certain physregs at certain locations.

Patch contributed by Nate Begeman, slightly hacked by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15701 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-12 19:01:14 +00:00
Chris Lattner
4f65fb38c6 Forward substitute some constants into their users 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15693 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-12 18:10:18 +00:00
Chris Lattner
3927af8d70 The only target that uses this code (v9) always has argsOnStackHaveFixedSize 
set to true (obviously)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15692 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-12 18:06:35 +00:00
Reid Spencer
b814e2d1c0 Get rid of a warning when compiling optimized. Uninitialized variable has 
been initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15565 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-07 15:19:31 +00:00
Chris Lattner
ecf8afdc20 Ok get rid of the REST of the tabs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15564 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-07 07:18:41 +00:00
Chris Lattner
d555da52f4 Death to tabs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15563 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-07 07:07:57 +00:00
Alkis Evlogimenos
706515727c Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15490 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 09:46:56 +00:00
Alkis Evlogimenos
1a8ea01f01 Convert indentation to 2 spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15489 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 09:46:26 +00:00
Brian Gaeke
57195d1321 Include SparcV9TmpInstr.h to pick up the def. of TmpInstruction, 
instead of InstrSelection.h, which is dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15476 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:34:57 +00:00
Brian Gaeke
f7d4efb3ed Tighten up some whitespace. Include SparcV9TmpInstr.h to pick up 
the def. of TmpInstruction, instead of InstrSelection.h, which is
dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15475 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:34:44 +00:00
Chris Lattner
46c2b3a5ec Squelch warnings in release mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15460 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 03:51:55 +00:00
Misha Brukman
6a90f8202b Add #include <cstdlib> and abort() to silence a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 14:02:21 +00:00
Misha Brukman
82fd8d8cdd * ceil() requires #include <cmath> for compilation 
* Alphabetize #includes
* Fix some lines to fit within 80 cols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15412 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 13:59:10 +00:00
Tanya Lattner
e0b531cc40 Adding ModuloScheduling so that it compiles for everyone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 19:00:17 +00:00
Chris Lattner
4ae131e5da Dereferencing end() is bad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15402 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 09:51:42 +00:00
Alkis Evlogimenos
f978a1db51 Make OptimizeBlock take a MachineFunction::iterator instead of a 
MachineBasicBlock* as a parameter so that nxext() and prior() helper
functions can work naturally on it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15376 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 19:24:41 +00:00
Chris Lattner
7f74340733 Next on a pointer increments the pointer, not an iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15375 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 18:40:36 +00:00
Alkis Evlogimenos
9fd332392c Use next() helper to make code more readable. Use 
MachineFunction::iterator instead of MachineBasicBlock* to avoid
dereferencing end iterators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15373 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 15:14:29 +00:00
Alkis Evlogimenos
dd04583781 Use MachineFunction::iterator instead of a MachineBasicBlock* because 
FallThrough maybe == to MF.end().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15372 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 15:03:52 +00:00
Chris Lattner
21ab22e475 Implement a simple target-independent CFG cleanup pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15368 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 10:01:27 +00:00
Tanya Lattner
0a88d2d8b9 Updated ModuloScheduling. It makes it all the wya through register allocation on the new code!! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15351 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 23:36:10 +00:00
Brian Gaeke
365f54c7bc Convert a few assertions with side-effects into regular old runtime checks. 
These side-effects seem to make a difference when using llc -march=sparcv9
in Release mode (i.e., with -DNDEBUG); when they are left out, lots of
instructions just get dropped on the floor, because they never end up
in the schedule.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15339 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 21:31:20 +00:00
Misha Brukman
47b14a4a6a Fix #includes of i*.h => Instructions.h as per PR403. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15334 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:30:56 +00:00
Chris Lattner
879313ae3a Fix #includes of i*.h => Instructions.h as per PR403: 
http://llvm.cs.uiuc.edu/PR403 .


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15333 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:23:00 +00:00
Chris Lattner
9670eecf33 Fix #includes of i*.h => Instructions.h as per PR403: 
http://llvm.cs.uiuc.edu/PR403 .


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15331 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:11:37 +00:00
Brian Gaeke
b2f30a3792 TargetInstrInfo::hasOperandInterlock() is always true, because it is 
never overridden by any target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15308 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:24:48 +00:00
Alkis Evlogimenos
5a0a1c2cba Add some comments to the backtracking code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15200 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 08:10:33 +00:00
Chris Lattner
c25b55a5b2 Fix the sense of joinable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15196 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:47:25 +00:00
Chris Lattner
f542649f1b This patch makes use of the infrastructure implemented before to safely and 
aggressively coallesce live ranges even if they overlap.  Consider this LLVM
code for example:

int %test(int %X) {
        %Y = mul int %X, 1      ;; Codegens to Y = X
        %Z = add int %X, %Y
        ret int %Z
}

The mul is just there to get a copy into the code stream.  This produces
this machine code:

 (0x869e5a8, LLVM BB @0x869b9a0):
        %reg1024 = mov <fi#-2>, 1, %NOREG, 0    ;; "X"
        %reg1025 = mov %reg1024                 ;; "Y"  (subsumed by X)
        %reg1026 = add %reg1024, %reg1025
        %EAX = mov %reg1026
        ret

Note that the life times of reg1024 and reg1025 overlap, even though they
contain the same value.  This results in this machine code:

test:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, %EAX
        add %EAX, %ECX
        ret

Another, worse case involves loops and PHI nodes.  Consider this trivial loop:
testcase:

int %test2(int %X) {
entry:
        br label %Loop
Loop:
        %Y = phi int [%X, %entry], [%Z, %Loop]
        %Z = add int %Y, 1
        %cond = seteq int %Z, 100
        br bool %cond, label %Out, label %Loop
Out:
        ret int %Z
}

Because of interactions between the PHI elimination pass and the register
allocator, this got compiled to this code:

test2:
        mov %ECX, DWORD PTR [%ESP + 4]
.LBBtest2_1:
***     mov %EAX, %ECX
        inc %EAX
        cmp %EAX, 100
***     mov %ECX, %EAX
        jne .LBBtest2_1

        ret

Or on powerpc, this code:

_test2:
        mflr r0
        stw r0, 8(r1)
        stwu r1, -60(r1)
.LBB_test2_1:
        addi r2, r3, 1
        cmpwi cr0, r2, 100
***     or r3, r2, r2
        bne cr0, .LBB_test2_1

***     or r3, r2, r2
        lwz r0, 68(r1)
        mtlr r0
        addi r1, r1, 60
        blr 0



With this improvement in place, we now generate this code for these two
testcases, which is what we want:


test:
        mov %EAX, DWORD PTR [%ESP + 4]
        add %EAX, %EAX
        ret

test2:
        mov %EAX, DWORD PTR [%ESP + 4]
.LBBtest2_1:
        inc %EAX
        cmp %EAX, 100
        jne .LBBtest2_1 # Loop
        ret

Or on PPC:

_test2:
        mflr r0
        stw r0, 8(r1)
        stwu r1, -60(r1)
.LBB_test2_1:
        addi r3, r3, 1
        cmpwi cr0, r3, 100
        bne cr0, .LBB_test2_1

        lwz r0, 68(r1)
        mtlr r0
        addi r1, r1, 60
        blr 0


Static numbers for spill code loads/stores/reg-reg copies (smaller is better):

em3d:       before: 47/25/26         after: 44/22/24
164.gzip:   before: 433/245/310      after: 403/231/278
175.vpr:    before: 3721/2189/1581   after: 4144/2081/1423
176.gcc:    before: 26195/8866/9235  after: 25942/8082/8275
186.crafty: before: 4295/2587/3079   after: 4119/2519/2916
252.eon:    before: 12754/7585/5803  after: 12508/7425/5643
256.bzip2:  before: 463/226/315      after: 482:241/309


Runtime perf number samples on X86:

gzip: before: 41.09 after: 39.86
bzip2: runtime: before: 56.71s after: 57.07s
gcc: before: 6.16 after: 6.12
eon: before: 2.03s after: 2.00s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15194 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:11:19 +00:00