Commit Graph

28 Commits

Author SHA1 Message Date
Benjamin Kramer
56f99527e7 Replace a DenseSet with SmallPtrSet.
SmallSet of pointer is the same as SmallPtrSet, use the latter directly.

llvm-svn: 151281
2012-02-23 20:53:02 +00:00
Michael J. Spencer
24f6d49962 Properly emit _fltused with FastISel. Refactor to share code with SDAG.
Patch by Joe Groff!

llvm-svn: 151183
2012-02-22 19:06:13 +00:00
Bill Wendling
0b1a8d62d4 Remove the eh.exception and eh.selector intrinsics. Also remove a hack to copy
over the catch information. The catch information is now tacked to the invoke
instruction.

llvm-svn: 149326
2012-01-31 01:46:13 +00:00
Devang Patel
ba2d56b1ef Directly point debug info to the stack slot of the arugment, instead of trying to keep track of vreg in which it the arugment is copied. The LiveDebugVariable can keep track of variable's ranges.
llvm-svn: 139330
2011-09-08 22:59:09 +00:00
Bill Wendling
71ce55ffd7 Add the support in code-gen for the landingpad instruction lowering.
The landingpad instruction is lowered into the EXCEPTIONADDR and EHSELECTION
SDNodes. The information from the landingpad instruction is harvested by the
'AddLandingPadInfo' function. The new EH uses the current EH scheme in the
back-end. This will change once we switch over to the new scheme. (Reviewed by
Jakob!)

llvm-svn: 137880
2011-08-17 21:56:44 +00:00
Jakob Stoklund Olesen
f7f4398587 Trim an unneeded header.
llvm-svn: 137184
2011-08-09 23:49:21 +00:00
Bill Wendling
57ddbb84ac Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.

llvm-svn: 136556
2011-07-30 05:42:50 +00:00
Bill Wendling
e4090cc864 Add the AddLandingPadInfo function.
AddLandingPadInfo takes a landingpad instruction and grabs all of the
information from it that it needs for EH table generation.

llvm-svn: 136429
2011-07-28 23:42:57 +00:00
Chris Lattner
e1fe7061ce land David Blaikie's patch to de-constify Type, with a few tweaks.
llvm-svn: 135375
2011-07-18 04:54:35 +00:00
Jakub Staszak
5c7b7d64ba Introduce MachineBranchProbabilityInfo class, which has similar API to
BranchProbabilityInfo (expect setEdgeWeight which is not available here).
Branch Weights are kept in MachineBasicBlocks. To turn off this analysis
set -use-mbpi=false.

llvm-svn: 133184
2011-06-16 20:22:37 +00:00
Bill Wendling
6e6a0422eb There are times when the landing pad won't have a call to 'eh.selector' in
it. It's been assumed up til now that it would be in its immediate
successor. However, this isn't necessarily the case. It could be in one of its
successor's successors.

Modify the code to more thoroughly check for an 'eh.selector' call in
successors. It only looks at a successor if we get there as a result of an
unconditional branch.

Testcase ObjC/exceptions-4.m in r126968.

llvm-svn: 126969
2011-03-03 23:14:05 +00:00
Cameron Zwarich
764320383d Fix PR9324 / <rdar://problem/9052489> by handling the case where a PHI has no uses.
llvm-svn: 126567
2011-02-27 08:06:01 +00:00
Cameron Zwarich
724eb8706a Merge information about the number of zero, one, and sign bits of live-out
registers at phis. This enables us to eliminate a lot of pointless zexts during
the DAGCombine phase. This fixes <rdar://problem/8760114>.

llvm-svn: 126380
2011-02-24 10:00:25 +00:00
Cameron Zwarich
e79a75febe Add a mechanism for invalidating the LiveOutInfo of a PHI, and use it whenever
a block is visited before all of its predecessors.

llvm-svn: 126378
2011-02-24 10:00:16 +00:00
Cameron Zwarich
5c9384705f Track blocks visited in reverse postorder.
llvm-svn: 126377
2011-02-24 10:00:13 +00:00
Cameron Zwarich
3d2f99227a Refactor the LiveOutInfo interface into a few methods on FunctionLoweringInfo
and make the actual map private.

llvm-svn: 126376
2011-02-24 10:00:08 +00:00
Cameron Zwarich
c942ffcae4 Roll out r126169 and r126170 in an attempt to fix the selfhost bot.
llvm-svn: 126185
2011-02-22 03:24:52 +00:00
Cameron Zwarich
63ed1f4c67 Merge information about the number of zero, one, and sign bits of live-out registers
at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine
phase. This fixes <rdar://problem/8760114>.

llvm-svn: 126170
2011-02-22 00:46:27 +00:00
Jakob Stoklund Olesen
b3820cdc22 Use an IndexedMap for LiveOutRegInfo to hide its dependence on TargetRegisterInfo::FirstVirtualRegister.
llvm-svn: 123096
2011-01-08 23:10:50 +00:00
Devang Patel
46570e6783 Reapply r112623. Included additional check for unused byval argument.
llvm-svn: 112659
2010-08-31 22:22:42 +00:00
Devang Patel
b94251aea0 Revert r112623. It is causing self host build failures.
llvm-svn: 112631
2010-08-31 19:41:03 +00:00
Devang Patel
414cbc940a Remember byval argument's frame index during argument lowering and use this info to emit debug info.
Fixes Radar 8367011.

llvm-svn: 112623
2010-08-31 18:50:09 +00:00
Dan Gohman
fef30fcd5e Reapply bottom-up fast-isel, with several fixes for x86-32:
- Check getBytesToPopOnReturn().
 - Eschew ST0 and ST1 for return values.
 - Fix the PIC base register initialization so that it doesn't ever
   fail to end up the top of the entry block.

llvm-svn: 108039
2010-07-10 09:00:22 +00:00
Bob Wilson
9e8c9204ef --- Reverse-merging r107947 into '.':
U    utils/TableGen/FastISelEmitter.cpp
--- Reverse-merging r107943 into '.':
U    test/CodeGen/X86/fast-isel.ll
U    test/CodeGen/X86/fast-isel-loads.ll
U    include/llvm/Target/TargetLowering.h
U    include/llvm/Support/PassNameParser.h
U    include/llvm/CodeGen/FunctionLoweringInfo.h
U    include/llvm/CodeGen/CallingConvLower.h
U    include/llvm/CodeGen/FastISel.h
U    include/llvm/CodeGen/SelectionDAGISel.h
U    lib/CodeGen/LLVMTargetMachine.cpp
U    lib/CodeGen/CallingConvLower.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
U    lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
U    lib/CodeGen/SelectionDAG/FastISel.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
U    lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
U    lib/CodeGen/SelectionDAG/InstrEmitter.cpp
U    lib/CodeGen/SelectionDAG/TargetLowering.cpp
U    lib/Target/XCore/XCoreISelLowering.cpp
U    lib/Target/XCore/XCoreISelLowering.h
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86FastISel.cpp
U    lib/Target/X86/X86ISelLowering.h

llvm-svn: 107987
2010-07-09 16:37:18 +00:00
Dan Gohman
7e6e4dd058 Re-apply bottom-up fast-isel, with fixes. Be very careful to avoid emitting
a DBG_VALUE after a terminator, or emitting any instructions before an EH_LABEL.

llvm-svn: 107943
2010-07-09 00:39:23 +00:00
Dan Gohman
4dcc56a102 Revert 107840 107839 107813 107804 107800 107797 107791.
Debug info intrinsics win for now.

llvm-svn: 107850
2010-07-08 01:00:56 +00:00
Dan Gohman
b2d5b47efb Give FunctionLoweringInfo an MBB member, avoiding the need to pass it
around everywhere, and also give it an InsertPt member, to enable isel
to operate at an arbitrary position within a block, rather than just
appending to a block.

llvm-svn: 107791
2010-07-07 16:47:08 +00:00
Dan Gohman
1c3ce1ccd5 Move FunctionLoweringInfo.h out into include/llvm/CodeGen. This will
allow target-specific fast-isel code to make use of it directly.

llvm-svn: 107787
2010-07-07 16:01:37 +00:00