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Commit Graph

14293 Commits

Author SHA1 Message Date
Andrew Trick
9be3481cbd Cleanup. Fix a stupid variable name.
llvm-svn: 133996
2011-06-28 05:44:06 +00:00
Andrew Trick
4ac5dd5154 SCEVExpander: give new insts a name that identifies the reponsible pass.
llvm-svn: 133992
2011-06-28 05:07:32 +00:00
Evan Cheng
f79231cbd4 Remove RegClass2VRegMap from MachineRegisterInfo.
llvm-svn: 133967
2011-06-27 23:54:40 +00:00
Evan Cheng
b2fc68c7bc Remove RCBarriers from TargetInstrDesc.
llvm-svn: 133964
2011-06-27 23:47:21 +00:00
Evan Cheng
7df851a4ff Remove the experimental (and unused) pre-ra splitting pass. Greedy regalloc can split live ranges.
llvm-svn: 133962
2011-06-27 23:40:45 +00:00
Devang Patel
8fbd4b55ea During bottom up fast-isel, instructions emitted to materalize registers are at top of basic block and do not have debug location. This may misguide debugger while entering the basic block and sometimes debugger provides semi useful view of current location to developer by picking up previous known location as current location. Assign a sensible location to the first instruction in a basic block, if it does not have one location derived from source file, so that debugger can provide meaningful user experience to developers in edge cases.
llvm-svn: 133953
2011-06-27 22:32:04 +00:00
Evan Cheng
2c06c8b3c2 More refactoring. Move getRegClass from TargetOperandInfo to TargetInstrInfo.
llvm-svn: 133944
2011-06-27 21:26:13 +00:00
Owen Anderson
c1dcf312d1 Add support for alternative register names, useful for instructions whose operands are logically equivalent to existing registers, but happen to be printed specially. For example, an instruciton that prints d0[0] instead of s0.
Patch by Jim Grosbach.

llvm-svn: 133940
2011-06-27 21:06:21 +00:00
Evan Cheng
e2b9caad06 Rename unnecessary forward declaration.
llvm-svn: 133928
2011-06-27 19:41:39 +00:00
Nick Lewycky
4a0f5218f2 Move onlyUsedByLifetimeMarkers to ValueTracking so that it can be used by other
passes as well.

llvm-svn: 133904
2011-06-27 04:20:45 +00:00
Jakob Stoklund Olesen
557793fb60 Distinguish early clobber output operands from clobbered registers.
Both become <earlyclobber> defs on the INLINEASM MachineInstr, but we
now use two different asm operand kinds.

The new Kind_Clobber is treated identically to the old
Kind_RegDefEarlyClobber for now, but x87 floating point stack inline
assembly does care about the difference.

This will pop a register off the stack:

  asm("fstp %st" : : "t"(x) : "st");

While this will pop the input and push an output:

  asm("fst %st" : "=&t"(r) : "t"(x));

We need to know if ST0 was a clobber or an output operand, and we can't
depend on <dead> flags for that.

llvm-svn: 133902
2011-06-27 04:08:33 +00:00
Rafael Espindola
45a2fa5664 There is only one register coalescer. Merge it into the base class and
remove the analysis group.

llvm-svn: 133899
2011-06-26 22:34:10 +00:00
Rafael Espindola
7ad658a832 Move RegisterCoalescer.h to lib/CodeGen.
llvm-svn: 133895
2011-06-26 21:41:06 +00:00
Michael J. Spencer
83e956656a Object: Add proper error handling.
llvm-svn: 133872
2011-06-25 17:55:23 +00:00
Michael J. Spencer
d5934fefee Make Binary the parent of ObjectFile and update children to new interface.
llvm-svn: 133870
2011-06-25 17:54:50 +00:00
Michael J. Spencer
8cb6d93f56 Add Binary class. This is a cleaner parent than ObjectFile.
llvm-svn: 133869
2011-06-25 17:54:29 +00:00
Michael J. Spencer
435e1ee994 Add Object/Error.
llvm-svn: 133868
2011-06-25 17:42:56 +00:00
Nick Lewycky
3e7058c303 Enhance the sanity check for block sizes; check that the resulting pointer is
pointing to the range [first character, last character] instead of just not
after the last character. Patch by Yan Ivnitskiy!

llvm-svn: 133867
2011-06-25 17:08:50 +00:00
Evan Cheng
43acb2c7a9 Rename TargetRegisterDesc to MCRegisterDesc
llvm-svn: 133845
2011-06-24 23:44:48 +00:00
Jim Grosbach
440526a1e8 Refactor MachO relocation generaration into the Target directories.
Move the target-specific RecordRelocation logic out of the generic MC
MachObjectWriter and into the target-specific object writers. This allows
nuking quite a bit of target knowledge from the supposedly target-independent
bits in lib/MC.

llvm-svn: 133844
2011-06-24 23:44:37 +00:00
Devang Patel
10271bcdad Fix struct member's scope. Patch by Xi Wang.
llvm-svn: 133828
2011-06-24 22:00:39 +00:00
Devang Patel
91fee59b74 Handle debug info for i128 constants.
llvm-svn: 133821
2011-06-24 20:46:11 +00:00
Evan Cheng
391461842d - Add MCRegisterInfo registration machinery. Also added x86 registration routines.
- Rename TargetRegisterDesc to MCRegisterDesc.

llvm-svn: 133820
2011-06-24 20:42:09 +00:00
Evan Cheng
e0801b07e0 Starting to refactor Target to separate out code that's needed to fully describe
target machine from those that are only needed by codegen. The goal is to
sink the essential target description into MC layer so we can start building
MC based tools without needing to link in the entire codegen.

First step is to refactor TargetRegisterInfo. This patch added a base class
MCRegisterInfo which TargetRegisterInfo is derived from. Changed TableGen to
separate register description from the rest of the stuff.

llvm-svn: 133782
2011-06-24 01:44:41 +00:00
Jakub Staszak
4cd344d775 Calculate backedge probability correctly.
llvm-svn: 133776
2011-06-23 23:52:11 +00:00
Jakub Staszak
d28a800e6b Missing files for the BlockFrequency analysis added.
llvm-svn: 133767
2011-06-23 21:56:59 +00:00
Jakub Staszak
d74cc36bcb Introduce BlockFrequency analysis for BasicBlocks.
llvm-svn: 133766
2011-06-23 21:45:20 +00:00
Evan Cheng
ed34559fcd Rename TargetOptions::StackAlignment to StackAlignmentOverride.
llvm-svn: 133739
2011-06-23 18:15:47 +00:00
Rafael Espindola
b6a2711f5a Add missing file.
llvm-svn: 133717
2011-06-23 14:02:13 +00:00
Dylan Noblesmith
0adb1b1393 Support: make floating-exception header private
It has only one user. This eliminates the last include of
config.h from the public headers -- ideally, config.h
shouldn't even be installed by `make install` anymore.

llvm-svn: 133713
2011-06-23 12:45:54 +00:00
Dylan Noblesmith
601868e82b Don't include config.h in public headers
Replace it with llvm-config.h, which defines a subset of
config.h's macros "so that they can be in exported headers 
and won't override package specific directives", e.g.,
PACKAGE_NAME.

Endian.h wasn't using any macros at all though, so just delete
the include there instead.

llvm-svn: 133712
2011-06-23 12:34:31 +00:00
Dylan Noblesmith
4a1d03f633 remove CMake mode_t define
It's now replaced with a simple ifdef _MSC_VER in the one
place it's needed (clang's FileManager.h header).

llvm-svn: 133711
2011-06-23 12:21:33 +00:00
Jay Foad
75b709336d Reinstate r133513 (reverted in r133700) with an additional fix for a
-Wshorten-64-to-32 warning in Instructions.h.

llvm-svn: 133708
2011-06-23 09:09:15 +00:00
Eric Christopher
d38d7f3300 Revert r133513:
"Reinstate r133435 and r133449 (reverted in r133499) now that the clang
self-hosted build failure has been fixed (r133512)."

Due to some additional warnings.

llvm-svn: 133700
2011-06-23 06:24:52 +00:00
Bill Wendling
42866c8944 Use the presence of the __compact_unwind section to indicate that a target
supports compact unwind info instead of having a separate flag indicating this.

llvm-svn: 133685
2011-06-23 05:13:28 +00:00
Bill Wendling
024a95accf Allow the AsmInfo to query for the compact unwind section.
llvm-svn: 133670
2011-06-23 00:23:04 +00:00
Bill Wendling
fcdc243520 Allow the AsmInfo to query the TLOF to see if it supports compact unwind.
llvm-svn: 133669
2011-06-23 00:12:58 +00:00
Bill Wendling
ec779bc283 Add a flag that indicates whether a target supports compact unwind info or not.
llvm-svn: 133662
2011-06-22 23:16:51 +00:00
Bill Wendling
72c8521466 Add a __LD,__compact_unwind section.
If the linker supports it, this will hold the CIE and FDE information in a
compact format. The implementation of the compact unwinding emission is coming
soon.

llvm-svn: 133658
2011-06-22 22:22:24 +00:00
Jay Foad
888cd746b8 Replace the existing forms of ConstantArray::get() with a single form
that takes an ArrayRef.

llvm-svn: 133615
2011-06-22 09:24:39 +00:00
Jay Foad
7ef9c9ad1e Make ConstantVector::get() always take an ArrayRef, never a std::vector.
llvm-svn: 133614
2011-06-22 09:10:19 +00:00
Jay Foad
f921ffd79e Extend ConstantUniqueMap with a new template parameter ValRefType,
representing a constant reference to ValType. Normally this is just
"const ValType &", but when ValType is a std::vector we want to use
ArrayRef as the reference type.

llvm-svn: 133611
2011-06-22 08:50:06 +00:00
Andrew Trick
04c3bb47ce IVUsers no longer needs to record the phis.
llvm-svn: 133518
2011-06-21 15:43:52 +00:00
Jay Foad
6015684974 Remove deprecated forms of StringMap::GetOrCreateValue().
llvm-svn: 133517
2011-06-21 15:37:05 +00:00
Jay Foad
2691fd9891 Reinstate r133435 and r133449 (reverted in r133499) now that the clang
self-hosted build failure has been fixed (r133512).

llvm-svn: 133513
2011-06-21 10:33:19 +00:00
Chris Lattner
a9ee8489df use the MapEntryTy typedef instead of writing it out long form,
add some fixme's about methods that should be removed.

Merged from type-system-rewrite.

llvm-svn: 133504
2011-06-21 06:22:33 +00:00
Chad Rosier
16a86e04cf Revert r133435 and r133449 to appease buildbots.
llvm-svn: 133499
2011-06-21 02:09:03 +00:00
Bill Wendling
54d7d72c94 Don't mark the eh.dispatch.setup with a memory access marker. We want this to
stick around even during fast isel.
<rdar://problem/9637156>

llvm-svn: 133493
2011-06-21 00:35:15 +00:00
Jay Foad
c465a95fb4 Change how PHINodes store their operands.
Change PHINodes to store simple pointers to their incoming basic blocks,
instead of full-blown Uses.

Note that this loses an optimization in SplitCriticalEdge(), because we
can no longer walk the use list of a BasicBlock to find phi nodes. See
the comment I removed starting "However, the foreach loop is slow for
blocks with lots of predecessors".

Extend replaceAllUsesWith() on a BasicBlock to also update any phi
nodes in the block's successors. This mimics what would have happened
when PHINodes were proper Users of their incoming blocks. (Note that
this only works if OldBB->replaceAllUsesWith(NewBB) is called when
OldBB still has a terminator instruction, so it still has some
successors.)

llvm-svn: 133435
2011-06-20 14:38:01 +00:00
Jay Foad
2d8b44f777 Remove the AugmentedUse struct.
I don't think the AugmentedUse struct buys us much, either in
correctness or in ease of use. Ditch it, and simplify Use::getUser() and
User::allocHungoffUses().

llvm-svn: 133433
2011-06-20 14:12:33 +00:00