Commit Graph

47 Commits

Author SHA1 Message Date
bf9716b9c4 Change this code ot pass register classes into the stack slot spiller/reloader
code.  PrologEpilogInserter hasn't been updated yet though, so targets cannot
use this info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23536 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 01:29:00 +00:00
dfd58709cc Fix a bug in my previous patch that was using the wrong iterator. This fixes
Olden/bisort among others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23124 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 00:10:46 +00:00
ed461e0faf Make this code safe for when loadRegFromStackSlot inserts multiple instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23108 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:18:32 +00:00
4fc997941d When inserting callee-save register reloads, make sure to skip over any
terminator instructions before the 'ret' in case the target has a
multi-instruction return sequence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22041 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-15 03:09:58 +00:00
2a82ef317c Tolerate instrs with extra args
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21982 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 21:07:15 +00:00
edf128a7fa Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21420 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 22:36:52 +00:00
3563015b0d Simplify/speedup the PEI by not having to scan for uses of the callee saved
registers.  This information is computed directly by the register allocator
now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19795 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-23 23:13:12 +00:00
92b9fcea7b Speed this up a bit by making ModifiedRegs a vector<char> not vector<bool>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19787 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-23 21:45:01 +00:00
5037a15910 Implicitly defined registers can clobber callee saved registers too!
This fixes the return-address-not-being-saved problem in the Alpha backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19741 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-22 00:49:16 +00:00
3ca6a2c72c Add an assertion that would have made more sense to duraid
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19704 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 21:32:07 +00:00
81ab877a0c Put this change back in after testing from Reid proved its innocence. getSpillSize now returns value in bits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16102 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-29 22:00:24 +00:00
bd2efb9600 Back out change to divide getSpillSize by 8 until I figure out why it breaks x86, which has register sizes in bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16073 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-27 16:48:24 +00:00
5709998993 Register sizes are in bits, not bytes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16070 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-27 04:28:10 +00:00
7008034c9f Register info alignment is in bits, frame object alignment is (currently) in
bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15970 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-21 20:04:59 +00:00
fa1face30a Now that we have per-register spill size/alignment info, remove more uses
of getRegClass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15967 91177308-0d34-0410-b5e6-96231b3b80d8
2004-08-21 19:45:10 +00:00
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
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
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
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
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
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
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
7f7bbc2fdb Fix fallout from getOffsetOfLocalArea() being negated. Debugging dumps were being
printed incorrectly, and we were reserving 8 extra bytes of stack space for functions
on X86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14152 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-11 06:37:11 +00:00
577aec1428 Fix the prolog epilog code inserter to match the documentation and support
targets whose stack grows up.

Patch contributed by Vladimir Prus


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14111 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-10 06:23:35 +00:00
9bcdcd17c7 Adjust to new TargetMachine interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13956 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 05:57:12 +00:00
859a18b583 Make dense maps keyed on physical registers smallerusing
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.

Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11477 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:37:17 +00:00
05d8350c12 Allow for fixed objects to reside in the local area, and if they don't to not
clobber them by allocating other objects in the same space!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11454 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:14:20 +00:00
93799292c1 There is no reason to align the stack pointer if there are no callees of this function!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11449 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 20:10:59 +00:00
c0b9dc5be7 Change MachineBasicBlock's vector of MachineInstr pointers into an
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 02:27:10 +00:00
1cbe4d0ad0 Do not use MachineOperand::isVirtualRegister either!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11283 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 21:12:22 +00:00
3d878d80d6 Eliminate users of MachineOperand::isPhysicalRegister
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11278 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 20:41:10 +00:00
4d7af65903 Change interface of MachineOperand as follows:
a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
    b) add isUse(), isDef()
    c) rename opHiBits32() to isHiBits32(),
              opLoBits32() to isLoBits32(),
              opHiBits64() to isHiBits64(),
              opLoBits64() to isLoBits64().

This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10461 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-14 13:24:17 +00:00
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-11 22:41:34 +00:00
b576c94c15 Added LLVM project notice to the top of every C++ source file.
Header files will be on the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 19:43:21 +00:00
73ff5120eb Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefs
and TargetInstrDescriptor::ImplicitUses to always point to a null
terminated array and never be null. So there is no need to check for
pointer validity when iterating over those sets. Code that looked
like:

if (const unsigned* AS = TID.ImplicitDefs) {
  for (int i = 0; AS[i]; ++i) {
    // use AS[i]
  }
}

was changed to:

for (const unsigned* AS = TID.ImplicitDefs; *AS; ++AS) {
  // use *AS
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8960 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08 05:20:08 +00:00
19df3876e6 Factory methods for FunctionPasses now return type FunctionPass *.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7823 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-13 18:18:15 +00:00
5f2180c533 (1) Added special register class containing (for now) %fsr.
Fixed spilling of %fcc[0-3] which are part of %fsr.

(2) Moved some machine-independent reg-class code to class TargetRegInfo
    from SparcReg{Class,}Info.

(3) Renamed MachienOperand::opIsDef to MachineOperand::opIsDefOnly()
    and related functions and flags.  Fixed several bugs where only
    "isDef" was being checked, not "isDefAndUse".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6341 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-27 00:05:23 +00:00
b589bf7d77 Fix a bug which occurred with empty basic blocks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5982 91177308-0d34-0410-b5e6-96231b3b80d8
2003-05-02 18:44:42 +00:00
0416d2a70a Fix problems with empty basic blocks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5326 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-16 18:06:43 +00:00
f85249ca73 Arg, fix bugs in previous checkin...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5322 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-16 02:24:20 +00:00
78d6db5627 Add assertion
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5321 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-16 02:22:08 +00:00
4ac7d7302b * Insert prolog/epilog code before rewriting indexes
* Fix calculation of frame offsets when there is an offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5318 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-15 22:52:34 +00:00
3501feab81 Rename MachineInstrInfo -> TargetInstrInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5272 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-14 22:00:31 +00:00
f00a3f905e Convert to MachineFunctionPass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5218 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-13 00:23:41 +00:00
eb24db9727 Rename FunctionFrameInfo to MachineFrameInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5200 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28 21:08:26 +00:00
8bd66e6907 Rename MachineFrameInfo to TargetFrameInfo.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5199 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28 21:00:25 +00:00
58b3328ac7 Initial checkin of Prolog/Epilog code inserter, which is an important part
of the abstract frame representation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5198 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28 20:43:30 +00:00