Chris Lattner
54aebde0be
factor some BuildMI calls, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57544 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15 03:47:17 +00:00
Dan Gohman
dd5b58ad7b
FastISel support for exception-handling constructs.
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- Move the EH landing-pad code and adjust it so that it works
with FastISel as well as with SDISel.
- Add FastISel support for @llvm.eh.exception and
@llvm.eh.selector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57539 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-14 23:54:11 +00:00
Dan Gohman
8c3f8b6dea
Add MBB successors and physreg Uses in the same order that
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SDISel typically adds them in. This makes it a little easier
to compare FastISel output with SDISel output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57266 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-07 22:10:33 +00:00
Dan Gohman
145b828014
Instead of emitting an implicit use for the super-register of
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X86::CL that was used, emit an EXTRACT_SUBREG from the CL
super-register to CL. This more precisely describes how the
CL register is being used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57264 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-07 21:50:36 +00:00
Dan Gohman
4e6ed5eefd
Fix X86FastISel to handle dynamic allocas that have avoided
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getting inserted into the ValueMap. This avoids infinite
recursion in some rare cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56989 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03 01:27:49 +00:00
Dan Gohman
d98d6203e4
Optimize conditional branches in X86FastISel. This replaces
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sequences like this:
sete %al
testb %al, %al
jne LBB11_1
with this:
je LBB11_1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56969 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02 22:15:21 +00:00
Dan Gohman
5bbee4b40a
Work around an interaction between fast-isel and regalloc=local. The
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local register allocator's physreg liveness doesn't recognize subregs,
so it doesn't know that defs of %ecx that are immediately followed by
uses of %cl aren't dead. This comes up due to the way fast-isel emits
shift instructions.
This is a temporary workaround. Arguably, local regalloc should
handle subreg references correctly. On the other hand, perhaps
fast-isel should use INSERT_SUBREG instead of just assigning to the
most convenient super-register of %cl when lowering shifts.
This fixes MultiSource/Benchmarks/MallocBench/espresso,
MultiSource/Applications/hexxagon, and others, under -fast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56947 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02 14:56:12 +00:00
Dan Gohman
6d4b052579
Split x86's ADJCALLSTACK instructions into 32-bit and 64-bit forms.
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This allows the 64-bit forms to use+def RSP instead of ESP. This
doesn't fix any real bugs today, but it is more precise and it
makes the debug dumps on x86-64 look more consistent.
Also, add some comments describing the CALL instructions' physreg
operand uses and defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56925 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-01 18:28:06 +00:00
Dan Gohman
5396c99baa
Fix X86FastISel's output for x86-32 PIC constant pool addresses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56829 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30 01:21:32 +00:00
Dan Gohman
57c3dac0df
Move the GlobalBaseReg field out of X86ISelDAGToDAG.cpp
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and X86FastISel.cpp into X86MachineFunction.h, so that it
can be shared, instead of having each selector keep track
of its own.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56825 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30 00:58:23 +00:00
Dan Gohman
9b66d73bb1
Disable all x87 usage, including f32 and f64 when the subtarget
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doesn't have SSE(2), with X86FastISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56823 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30 00:48:39 +00:00
Dan Gohman
7962e856d1
Fix an over-pessimization about GlobalVariable addresses in X86FastISel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-29 21:13:15 +00:00
Dan Gohman
09aae469ce
Fix X86FastISel's address folding to check displacement
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values for overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56686 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26 20:04:15 +00:00
Dan Gohman
97135e1ee5
Factor out the code for determining when symblic addresses
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require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26 19:15:30 +00:00
Dan Gohman
5af29c2e57
Disable support for x86_f80 in X86FastISel. Supporting it would
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require more work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56637 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26 01:39:32 +00:00
Dan Gohman
789ce77c6a
Fix a bug in which address displacements were being added to the
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load from the stub, instead of the result of the load from the stub.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56626 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-25 23:34:02 +00:00
Devang Patel
0598866c05
Large mechanical patch.
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s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g
This sets the stage
- to implement function notes as function attributes and
- to distinguish between function attributes and return value attributes.
This requires corresponding changes in llvm-gcc and clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-25 21:00:45 +00:00
Dan Gohman
2cc3aa4459
PIC support in X86FastISel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56608 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-25 15:24:26 +00:00
Dan Gohman
d57dd5f4e6
Arrange for FastISel code to have access to the MachineModuleInfo
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object. This will be needed to support debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-23 21:53:34 +00:00
Arnold Schwaighofer
290ae0398e
Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56436 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 14:50:07 +00:00
Chris Lattner
743922ea75
Fold immediates into X86 shifts with fast isel. This generates:
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sarl $3, %ecx
instead of:
movl $3, %ecx
sarl %cl, %edx
This shrinks fast isel 176.gcc by about 2000 instructions (.3%)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-21 21:44:29 +00:00
Dan Gohman
7e8ef60e3c
Fix a FastISel GlobalVariable CSE bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56376 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-19 23:42:04 +00:00
Dan Gohman
2ff7fd1461
Refactor X86SelectConstAddr, folding it into X86SelectAddress. This
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results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-19 22:16:54 +00:00
Dan Gohman
3589308f37
Address-mode folding for X86FastISel. It's pretty basic, but it
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catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56320 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-18 23:23:44 +00:00
Dan Gohman
1fbc3cd674
Simplify this code. The FastISel class has its own TD member.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-18 18:26:43 +00:00
Dan Gohman
b5b6ec6488
FastISel: For calls, prefer using the callee's address as a constant
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over having it in a register. And wait until after checking type
legality before requesting that the callee address be placed in a
register. Also, fix support for calls with void return type.
This speeds up fast-isel isel time by about 15% and reduces
instruction counts by about 3% overall on certain testcases. It also
changes many indirect calls to direct calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56292 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-17 21:18:49 +00:00
Owen Anderson
ac34a00fe0
Fix a bug in ANY_EXTEND handling that was breaking 403.gcc on X86-64 in fast isel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56117 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 19:44:55 +00:00
Owen Anderson
b63691350d
If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before giving up. This fixes 445.gobmk on
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X86-64 in fast isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56088 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 02:41:37 +00:00
Dan Gohman
78efce6155
X86FastISel support for double->float and float->double casts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 21:02:08 +00:00
Dan Gohman
0586d91bb3
Add X86FastISel support for static allocas, and refences
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to static allocas. As part of this change, refactor the
address mode code for laods and stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56066 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10 20:11:02 +00:00
Evan Cheng
59fbc80f6b
Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55975 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-09 01:26:59 +00:00
Evan Cheng
debdea0a66
Handle calls which produce i1 results: promote to i8 but and it with 1 to get the low bit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55925 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08 17:15:42 +00:00
Dan Gohman
863890e2fa
Fix copy+pastos in comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55918 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08 16:31:35 +00:00
Evan Cheng
24e3a90904
Add support to extend call operands when needed. Enable x86 fastisel call support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55891 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08 06:35:17 +00:00
Evan Cheng
f3d4efe30c
Initial fastisel call support for C, Fast, and X86_FastCall calling conventions. It's meant to handle "simple" calls, i.e. no byval, structret, etc. It doesn't support multi-result returns either.
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Not yet turned on, it needs to support sext / zext of arguments and result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55882 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-07 09:09:33 +00:00
Evan Cheng
10a8d9c737
Handle x86 truncate to i8 with target hook for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-07 08:47:42 +00:00
Owen Anderson
3b217c6f5c
Fix constant pool loads, and remove broken versions of addConstantPoolReference.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55868 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-06 01:11:01 +00:00
Dan Gohman
f58cb6d224
Fix X86FastISel's shift and select code to reject illegal types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55857 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 21:27:34 +00:00
Dan Gohman
31d26912cc
Fix the opcodes used by X86FastISel for shifts and conditional moves.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55855 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 21:13:04 +00:00
Evan Cheng
0de588fd89
Factor out code that emits load and store instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55854 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 21:00:03 +00:00
Owen Anderson
9c7216f984
Rename method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55853 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 20:49:33 +00:00
Dan Gohman
c39f4dba1c
X86FastISel support for shifts and conditional moves.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55844 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 18:30:08 +00:00
Dan Gohman
4f22bb0676
Check a comparion's operand type for legality before
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expanding its operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55820 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:33:56 +00:00
Dan Gohman
f52550b50e
Fix X86FastISel code for comparisons and conditional branches
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to check the result of getRegForValue before using it, and
to check for illegal operand types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55819 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:15:35 +00:00
Dan Gohman
d89ae99ec8
X86FastISel support for conditional branches.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55816 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 01:06:14 +00:00
Owen Anderson
95267a1e67
Add initial support for selecting constant materializations that require constant
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pool loads on X86 in fast isel. This isn't actually used yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55814 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-05 00:06:23 +00:00
Dan Gohman
6e3f05f5ce
X86FastISel support for ICmpInst and FCmpInst.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55811 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 23:26:51 +00:00
Owen Anderson
79924eb6f5
Fix the ordering of operands to the store (inverted relative to LLVM IR), and fix the testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 16:48:33 +00:00
Owen Anderson
a3971dfbfe
Add a first attempt at implementing stores for X86 fast isel using target hooks.
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Dan or Evan, please review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55764 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 07:08:58 +00:00
Evan Cheng
373d50af1d
Load from GV stub should be locally CSE'd.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55763 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 06:18:33 +00:00