Evan Cheng
ec693f77c0
* Added intelligence to X86 LEA addressing mode matching routine so it returns
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false if the match is not profitable. e.g. leal 1(%eax), %eax.
* Added patterns for X86 integer loads and LEA32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24635 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-08 02:01:35 +00:00
Chris Lattner
e80242a948
X86 doesn't support sextinreg for 8-bit things either.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24631 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 17:59:14 +00:00
Evan Cheng
8d202230b4
Remove unnecessary let hasCtrlDep=1 now it can be inferred.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24611 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 23:09:43 +00:00
Chris Lattner
3d36a9f6f4
Several things:
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1. Remove redundant type casts now that PR673 is implemented.
2. Implement the OUT*ir instructions correctly. The port number really
*is* a 16-bit value, but the patterns should only match if the number
is 0-255. Update the patterns so they now match.
3. Fix patterns for shifts to reflect that the shift amount is always an
i8, not an i16 as they were believed to be before. This previous fib
stopped working when we started knowing that CL has type i8.
4. Change use of i16i8imm in SH*ri patterns to all be imm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24599 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-05 02:40:25 +00:00
Evan Cheng
d35b8c1adb
Added isel patterns for RET, JMP, and WRITEPORT.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24588 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-04 08:19:43 +00:00
Chris Lattner
df65de42cf
Fix PR672 another way which should be more robust
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24585 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-04 06:03:50 +00:00
Chris Lattner
a027ba885a
Fix test/Regression/ExecutionEngine/2005-12-02-TailCallBug.ll and PR672.
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This also fixes 177.mesa, the only program that fails with --enable-x86-fastcc
turned on. Given a clean nightly tester run, we should be able to turn it
on by default!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24578 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-03 07:15:55 +00:00
Chris Lattner
865874c88a
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24572 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-02 00:11:20 +00:00
Nate Begeman
6510b22cec
Support multiple ValueTypes per RegisterClass, needed for upcoming vector
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work. This change has no effect on generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24563 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 04:51:06 +00:00
Evan Cheng
640f299b44
Proper support for shifts with register shift value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24559 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 00:43:55 +00:00
Chris Lattner
350d22e14d
SelectNodeTo now returns its result, we must pay attention to it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24550 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 22:59:19 +00:00
Nate Begeman
85a168a734
Fix a typo in my latest change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24542 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 18:57:39 +00:00
Nate Begeman
391c5d231a
No longer track value types for asm printer operands, and remove them as
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an argument to every operand printing function. Requires some slight
tweaks to x86, the only user.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24541 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 18:54:35 +00:00
Chris Lattner
5b9bbc8792
Fix a bug in a recent patch that broke shifts
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24526 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 05:11:18 +00:00
Evan Cheng
bd3d25c6b1
Added support to STORE and shifts to DAG to DAG isel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24525 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 02:51:20 +00:00
Evan Cheng
345c3f370d
Fixed a minor bug: - -offset != offset iff offset == MININT
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24522 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 01:59:00 +00:00
Evan Cheng
f0701842f7
Add more X86 ISel patterns.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24520 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-29 19:38:52 +00:00
Chris Lattner
f73bae1b73
No targets support line number info yet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24513 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-29 06:16:21 +00:00
Chris Lattner
1e4ed93599
Add a missed optimization
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24495 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-28 04:52:39 +00:00
Chris Lattner
ac2902bcb5
Use HasDotTypeDotSizeDirective instead of forELF
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24481 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 23:06:54 +00:00
Chris Lattner
9787c6443f
Remove a level of indentation by using a continue.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24479 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 22:48:18 +00:00
Chris Lattner
d460f57d65
Simplify the subtarget info, allow the asmwriter to do some target sensing
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based on TargetType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24478 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 22:43:58 +00:00
Chris Lattner
a35a8e87fa
Use subtarget information computed by X86Subtarget instead of rolling our own.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24477 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 22:39:40 +00:00
Chris Lattner
e5600e5509
Make the X86 subtarget compute the basic target type: ELF, Cygwin, Darwin,
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or native Win32
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24476 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 22:31:58 +00:00
Chris Lattner
5df14ca0a1
Add a forELF flag, allowing the removal of forCygwin and simplification of
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conditionals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24475 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 22:19:48 +00:00
Chris Lattner
8fccc97b0b
simplify and genericize this code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24473 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 19:50:31 +00:00
Chris Lattner
69191f8f05
prune #include
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24468 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 08:33:17 +00:00
Chris Lattner
d939f6c85d
Switch to using the shared constant pool printer, along with using shorter
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CPI ids
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24467 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 08:32:23 +00:00
Chris Lattner
8b8b9515d6
Adjust to capitalized AsmPrinter method names
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24456 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 07:51:23 +00:00
Chris Lattner
64965ba8b0
Use PrivateGlobalPrefix for basic block labels. This allows the x86 darwin
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port to properly use L for the bb prefix instead of .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24454 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 07:43:59 +00:00
Chris Lattner
7b6e53cde7
convert the rest of this over to use SwitchSection
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24448 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 07:16:34 +00:00
Chris Lattner
224cfc2eac
Start using the AsmPrinter shared SwitchSection code. This allows the X86
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backend to implement global variables in sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24447 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 07:11:11 +00:00
Chris Lattner
62cbf2aab9
Rename SwitchSection -> switchSection to avoid conflicting with a future
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change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24443 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 06:55:27 +00:00
Chris Lattner
c41cc83117
Naturally align doubles in the constant pool, set PrivateGlobalPrefix on
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darwin, use it when printing the constant pool indices so the labels are
appropriately private, emit cp entries to .const instead of .data on darwin
and only emit a single .section for the constant pool, not one for each
entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24440 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-21 06:46:22 +00:00
Chris Lattner
81f803df80
Lower READCYCLECOUNTER correctly, preserving the chain result
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24438 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 22:57:19 +00:00
Chris Lattner
441b223c9b
encode rdtsc correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24435 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 22:13:18 +00:00
Chris Lattner
81363c3871
use chain operands to ensure the copies don't wander from the rdtsc instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24434 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 22:01:40 +00:00
Andrew Lenharth
b873ff322c
The second patch of X86 support for read cycle counter.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24430 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 21:41:10 +00:00
Chris Lattner
6adaf79ad7
Teach the x86 backend about the register constraints of its addressing mode.
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Patch by Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24423 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 07:01:30 +00:00
Chris Lattner
f9ce9fb49b
Add load and other support to the dag-dag isel. Patch contributed by Evan
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Cheng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 02:11:08 +00:00
Chris Lattner
f124d5e500
add more patterns, patch by Evan Cheng.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24406 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-18 01:04:42 +00:00
Chris Lattner
78432feff8
Add patterns for some 16-bit immediate instructions, patch contributed by
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Evan Cheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24384 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 02:01:55 +00:00
Chris Lattner
7a12537843
Add patterns for several simple instructions that take i32 immediates.
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Patch contributed by Evan Cheng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24382 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-16 22:59:19 +00:00
Chris Lattner
c961eea6cb
initial step at adding a dag-to-dag isel for X86 backend. Patch contributed
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by Evan Cheng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24371 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-16 01:54:32 +00:00
Chris Lattner
dbdbf0ce2e
Separate X86ISelLowering stuff out from the X86ISelPattern.cpp file. Patch
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contributed by Evan Cheng.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24358 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-15 00:40:23 +00:00
Chris Lattner
ce8eb0c16b
Add a new option to indicate we want the code generator to emit code quickly,not spending tons of time microoptimizing it. This is useful for an -O0style of build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24233 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-08 02:11:51 +00:00
Chris Lattner
ffff6175ef
add a note that Nate mentioned last week
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23898 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-23 21:44:59 +00:00
Chris Lattner
1171ff4fd7
Put some of my random notes somewhere public
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23897 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-23 19:52:42 +00:00
Nate Begeman
405e3ecb56
Invert the TargetLowering flag that controls divide by consant expansion.
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Add a new flag to TargetLowering indicating if the target has really cheap
signed division by powers of two, make ppc use it. This will probably go
away in the future.
Implement some more ISD::SDIV folds in the dag combiner
Remove now dead code in the x86 backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23853 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-21 00:02:42 +00:00
Nate Begeman
34f342e36f
Remove some dead code now that the dag combiner exists.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 22:08:02 +00:00
Nate Begeman
14e2cf62f4
Properly split f32 and f64 into separate register classes for scalar sse fp
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fixing a bunch of nasty hackery
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23735 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 22:06:00 +00:00
Chris Lattner
3cf8760dc5
silence some warnings
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23594 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-02 16:29:36 +00:00
Chris Lattner
56bcae0de9
simplify this code using the new regclass info passed in
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23557 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 17:12:38 +00:00
Chris Lattner
97d5e6461a
Pass extra regclasses into spilling code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23537 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 01:29:42 +00:00
Chris Lattner
3e2bafd640
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
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Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23505 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:29:17 +00:00
Chris Lattner
a92aab74dd
Implement the isLoadFromStackSlot interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23387 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-19 05:23:44 +00:00
Chris Lattner
43ef1318c6
give all operands names
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23356 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 21:10:24 +00:00
Chris Lattner
3452d23c34
fix a major regression from my patch this afternoon
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23347 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 06:06:45 +00:00
Chris Lattner
82da52299c
This code is no longer needed, it is moved to the target-indep code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23332 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 19:31:44 +00:00
Chris Lattner
fb8b8a75ff
Handle any_extend like zext
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23202 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 00:16:09 +00:00
Jim Laskey
b1e1180ca0
1. Use SubtargetFeatures in llc/lli.
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2. Propagate feature "string" to all targets.
3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23192 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-01 21:38:21 +00:00
Reid Spencer
dd22dc85ea
Adjust to member variable name change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23119 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27 19:09:48 +00:00
Chris Lattner
143b675393
Fix a bug in my previous checkin
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23082 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:18:44 +00:00
Chris Lattner
5839bf2b3b
Change ConstantPoolSDNode to actually hold the Constant itself instead of
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putting it into the constant pool. This allows the isel machinery to
create constants that it will end up deciding are not needed, without them
ending up in the resultant function constant pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23081 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:15:30 +00:00
Chris Lattner
7cad4f2089
Fix a warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23031 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25 00:05:15 +00:00
Chris Lattner
d177579860
Adjust to new livevars interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22991 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 23:41:14 +00:00
Chris Lattner
76eb08bcda
Simplify this code by using LiveVariables::KillsRegister
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22988 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 22:49:55 +00:00
Chris Lattner
ecbce617ca
Split RegisterClass 'Methods' into MethodProtos and MethodBodies
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22929 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 19:13:20 +00:00
Chris Lattner
03ba7b9f25
Put register classes into namespaces
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22925 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 18:51:57 +00:00
Chris Lattner
2505d6b727
The simple isel being gone makes this dead!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22914 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 18:32:03 +00:00
Chris Lattner
9d9dc816d0
add a few missing cases
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22891 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 00:41:29 +00:00
Chris Lattner
b822abade7
Give ADJCALLSTACKDOWN/UP the correct operands.
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Give a whole bunch of other stuff variable operands, particularly FP. The
FP stackifier is playing fast and loose with operands here, so we have to
mark them all as variable. This will have to be fixed before we can dag->dag
the X86 backend. The solution is for the pre-stackifier and post-stackifier
instructions to all be disjoint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22890 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 00:38:22 +00:00
Chris Lattner
679c408768
The variable SAR's only take one operand too
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22888 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 00:31:37 +00:00
Chris Lattner
fd444b2a69
Stop adding bogus operands to variable shifts on X86. These instructions
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only take one operand. The other comes implicitly in through CL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22887 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19 00:16:17 +00:00
Nate Begeman
73bfa71524
Remove the X86 and PowerPC Simple instruction selectors; their time has
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passed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22886 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-18 23:53:15 +00:00
Chris Lattner
707ebc5dd6
update the backends to work with the new CopyFromReg/CopyToReg/ImplicitDef nodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22807 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16 21:56:37 +00:00
Nate Begeman
7cbd525ba8
Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty
...
fixme from the PowerPC backend. Emit slightly better code for legalizing
select_cc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16 19:49:35 +00:00
Nate Begeman
889f2c1acf
Fix last night's X86 regressions by putting code for SSE in the if(SSE)
...
block. nur.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22788 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14 18:37:02 +00:00
Nate Begeman
875f360e22
Fix FP_TO_UINT with Scalar SSE2 now that the legalizer can handle it. We
...
now generate the relatively good code sequences:
unsigned short foo(float a) { return a; }
_foo:
movss 4(%esp), %xmm0
cvttss2si %xmm0, %eax
movzwl %ax, %eax
ret
and
unsigned bar(float a) { return a; }
_bar:
movss .CPI_bar_0, %xmm0
movss 4(%esp), %xmm1
movapd %xmm1, %xmm2
subss %xmm0, %xmm2
cvttss2si %xmm2, %eax
xorl $-2147483648, %eax
cvttss2si %xmm1, %ecx
ucomiss %xmm0, %xmm1
cmovb %ecx, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22786 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14 04:36:51 +00:00
Chris Lattner
88ac32ca26
Update the targets to the new SETCC/CondCodeSDNode interfaces.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 20:21:10 +00:00
Chris Lattner
8c4a8735ec
adjust to change in getSubtarget() api
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22687 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 21:54:27 +00:00
Nate Begeman
8c00f8cdc7
Add Subtarget support to PowerPC. Next up, using it.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22644 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 07:12:09 +00:00
Nate Begeman
1c73c7be9d
Scalar SSE: load +0.0 -> xorps/xorpd
...
Scalar SSE: a < b ? c : 0.0 -> cmpss, andps
Scalar SSE: float -> i16 needs to be promoted
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22637 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 23:26:28 +00:00
Chris Lattner
0561b3ff9f
Update to use the new MathExtras.h support for log2 computation.
...
Patch contributed by Jim Laskey!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22594 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02 19:26:06 +00:00
Jeff Cohen
d29b6aa608
Keep tabs and trailing spaces out.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 18:33:25 +00:00
Chris Lattner
a88da08c6e
fix a typeo
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22561 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:43:00 +00:00
Chris Lattner
a35e1dfd12
Change the fp to integer code to not perform 2-byte stores followed by
...
1 byte loads and other operations. This is bad for store-forwarding on
common CPUs. We now do this:
fnstcw WORD PTR [%ESP]
mov %AX, WORD PTR [%ESP]
instead of:
fnstcw WORD PTR [%ESP]
mov %AL, BYTE PTR [%ESP + 1]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22559 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:17:52 +00:00
Chris Lattner
01546c5d50
Use a custom expander for all FP to int conversions, as the X86 only has
...
FP-to-int-in-memory: this exposes the load from the stored slot to the
selection dag, allowing it to be folded into other operaions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22556 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:05:54 +00:00
Andrew Lenharth
422f3d58a8
turn off GOT on archs that didn't use it (not that it appeard to harm them much with it on)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22553 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 23:32:02 +00:00
Chris Lattner
5d06b8caae
Implement a FIXME: move a bunch of cruft for handling FP_TO_*INT operations
...
that the X86 does not support to the legalizer. This allows it to be better
optimized, etc, and will help with SSE support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22551 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 01:00:29 +00:00
Chris Lattner
f7443dace5
Don't forget to diddle with the control word when performing an FISTP64.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22550 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:54:34 +00:00
Chris Lattner
745d538119
Use a custom expander to compile this:
...
long %test4(double %X) {
%tmp.1 = cast double %X to long ; <long> [#uses=1]
ret long %tmp.1
}
to this:
_test4:
sub %ESP, 12
fld QWORD PTR [%ESP + 16]
fistp QWORD PTR [%ESP]
mov %EDX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP]
add %ESP, 12
ret
instead of this:
_test4:
sub %ESP, 28
fld QWORD PTR [%ESP + 32]
fstp QWORD PTR [%ESP]
call ___fixdfdi
add %ESP, 28
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22549 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:40:01 +00:00
Jeff Cohen
00b16889ab
Eliminate all remaining tabs and trailing spaces.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:12:32 +00:00
Jeff Cohen
9eb59ec548
Eliminate tabs and trailing spaces.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22520 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 05:53:44 +00:00
Andrew Lenharth
908bc862d5
update interface
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22498 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-22 20:49:37 +00:00
Reid Spencer
a0f5bf306c
For: memory operations -> stores
...
This is the first incremental patch to implement this feature. It adds no
functionality to LLVM but setup up the information needed from targets in
order to implement the optimization correctly. Each target needs to specify
the maximum number of store operations for conversion of the llvm.memset,
llvm.memcpy, and llvm.memmove intrinsics into a sequence of store operations.
The limit needs to be chosen at the threshold of performance for such an
optimization (generally smallish). The target also needs to specify whether
the target can support unaligned stores for multi-byte store operations.
This helps ensure the optimization doesn't generate code that will trap on
an alignment errors.
More patches to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22468 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-19 04:52:44 +00:00
Nate Begeman
5a8441ea3f
Teach the legalizer how to promote SINT_TO_FP to a wider SINT_TO_FP that
...
the target natively supports. This eliminates some special-case code from
the x86 backend and generates better code as well.
For an i8 to f64 conversion, before & after:
_x87 before:
subl $2, %esp
movb 6(%esp), %al
movsbw %al, %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_x87 after:
subl $2, %esp
movsbw 6(%esp), %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_sse before:
subl $12, %esp
movb 16(%esp), %al
movsbl %al, %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
_sse after:
subl $12, %esp
movsbl 16(%esp), %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22452 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 02:02:34 +00:00
Nate Begeman
11cefd926a
Teach the register allocator that movaps is also a move instruction
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22451 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 02:00:20 +00:00
Nate Begeman
9035b99abf
A couple more darwinisms
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22450 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 01:59:47 +00:00
Chris Lattner
a28381cac2
Remove all knowledge of UINT_TO_FP from the X86 backend, relying on the
...
legalizer to eliminate them. With this comes the expected code quality
improvements, such as, for this:
double foo(unsigned short X) { return X; }
we now generate this:
_foo:
subl $4, %esp
movzwl 8(%esp), %eax
movl %eax, (%esp)
fildl (%esp)
addl $4, %esp
ret
instead of this:
_foo:
subl $4, %esp
movw 8(%esp), %ax
movzwl %ax, %eax ;; Load not folded into this.
movl %eax, (%esp)
fildl (%esp)
addl $4, %esp
ret
-Chris
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22449 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 00:28:20 +00:00
Nate Begeman
16b04f3d5e
Get closer to fully working scalar FP in SSE regs. This gets singlesource
...
working, and Olden/power.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22441 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-15 00:38:55 +00:00
Nate Begeman
6c7cb29038
Add support for printing the sse scalar comparison instruction mnemonics.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22440 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-14 22:52:25 +00:00
Nate Begeman
d3a490a08e
Check in the last of the darwin-specific code necessary to get shootout
...
working before modifying the asm printer to use the subtarget info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22408 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 18:34:58 +00:00
Nate Begeman
0e219eb9b8
Clean up the TargetSubtarget class a bit, removing an unnecessary argument
...
to the constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22392 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:41:19 +00:00
Chris Lattner
b151acadc8
Minor changes to improve comments and fix the build on _WIN32 systems.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22391 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:36:10 +00:00
Chris Lattner
3249bfc828
Add a note
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22390 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 02:35:36 +00:00
Nate Begeman
fb5792f416
Implement Subtarget support
...
Implement the X86 Subtarget.
This consolidates the checks for target triple, and setting options based
on target triple into one place. This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.
This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin. Next up is to convert over the asm printers
to use this new interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22389 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 01:41:54 +00:00
Nate Begeman
73213f6c07
Commit some pending darwin changes before subtarget support.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22388 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-12 01:37:28 +00:00
Chris Lattner
c569d79a2a
Output .size directives to tell the assembler the size of each function.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22381 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 06:29:14 +00:00
Chris Lattner
b12c9fa565
Fix crazy indentation
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22380 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 06:25:47 +00:00
Chris Lattner
81b6ed7ed1
Refactor things a bit to allow the ELF code emitter to run the X86 machine code emitter
...
after itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22376 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 05:17:48 +00:00
Chris Lattner
efb4bf0de6
Remove prototype for non-existant function
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22372 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-11 04:20:55 +00:00
Chris Lattner
bce81ae51e
Change *EXTLOAD to use an VTSDNode operand instead of being an MVTSDNode.
...
This is the last MVTSDNode.
This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.
Also, remove some uses of dyn_cast that should really be cast (which is
cheaper in a release build).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22368 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-10 01:56:13 +00:00
Chris Lattner
9fadb4c1c0
Change TRUNCSTORE to use a VTSDNode operand instead of being an MVTSTDNode
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22366 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-10 00:29:18 +00:00
Nate Begeman
72b286b0a0
Add support for assembling .s files on mac os x for intel
...
Add support for running bugpoint on mac os x for intel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22351 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-08 00:23:26 +00:00
Chris Lattner
8d4b9eddc0
Restore some code that was accidentally removed by Nate's patch yesterday.
...
This fixes the regressions from last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22344 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-07 17:12:53 +00:00
Nate Begeman
b8aa3ac678
Fix a typo in my checkin today that caused regressions. Oops!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22341 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-07 06:32:01 +00:00
Nate Begeman
f63be7d395
First round of support for doing scalar FP using the SSE2 ISA extension and
...
XMM registers. There are many known deficiencies and fixmes, which will be
addressed ASAP. The major benefit of this work is that it will allow the
LLVM register allocator to allocate FP registers across basic blocks.
The x86 backend will still default to x87 style FP. To enable this work,
you must pass -enable-sse-scalar-fp and either -sse2 or -sse3 to llc.
An example before and after would be for:
double foo(double *P) { double Sum = 0; int i; for (i = 0; i < 1000; ++i)
Sum += P[i]; return Sum; }
The inner loop looks like the following:
x87:
.LBB_foo_1: # no_exit
fldl (%esp)
faddl (%eax,%ecx,8)
fstpl (%esp)
incl %ecx
cmpl $1000, %ecx
#FP_REG_KILL
jne .LBB_foo_1 # no_exit
SSE2:
addsd (%eax,%ecx,8), %xmm0
incl %ecx
cmpl $1000, %ecx
#FP_REG_KILL
jne .LBB_foo_1 # no_exit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22340 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-06 18:59:04 +00:00
Chris Lattner
e0fe225e89
Make several cleanups to Andrews varargs change:
...
1. Pass Value*'s into lowering methods so that the proper pointers can be
added to load/stores from the valist
2. Intrinsics that return void should only return a token chain, not a token
chain/retval pair.
3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone.
4. Now that we have Value*'s available in the lowering methods, pass them
into any load/stores from the valist that are emitted
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22339 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-05 19:58:54 +00:00
Chris Lattner
08568cfe25
Fit to 80 columns
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22336 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-05 17:50:16 +00:00
Chris Lattner
6a709a418b
Percolate the call up to the right superclass
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22330 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-03 17:34:39 +00:00
Nate Begeman
4eb74ba602
The statistic needs to be in the correct namespace.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22327 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-01 23:56:38 +00:00
Chris Lattner
b36cbd0286
Refactor X86AsmPrinter.cpp into multiple files. Patch contributed
...
by Aaron Gray, cleaned up by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22324 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-01 22:44:09 +00:00
Nate Begeman
9d19eb459c
Make the x86 asm printer darwin-aware. This mostly entails doing the same
...
thing as cygwin most of the time, and printing our alignments in log2
rather than number of bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22316 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-30 00:53:20 +00:00
Nate Begeman
f1702ac589
Initial set of .td file changes necessary to get scalar fp in xmm registers
...
working. The instruction selector changes will hopefully be coming later
this week once they are debugged. This is necessary to support the darwin
x86 FP model, and is recommended by intel as the replacement for x87. As
a bonus, the register allocator knows how to deal with these registers
across basic blocks, unliky the FP stackifier. This leads to significantly
better codegen in several cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22300 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-27 21:20:31 +00:00
Chris Lattner
07a9144efe
Add support to the X86 backend for emitting ELF files. To use this, we
...
currently use: llc t.bc --filetype=obj
This will produce a t.o file which is dumpable with readelf. Currently
the file produced is empty, but the scaffolding to do more is now in place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22292 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-27 06:30:12 +00:00
Chris Lattner
0431c96cec
Refactor the addPassesToEmitAssembly interface into a addPassesToEmitFile
...
interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22282 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-25 02:48:37 +00:00
Andrew Lenharth
213e557cef
If we support structs as va_list, we must pass pointers to them to va_copy
...
See last commit for LangRef, this implements it on all targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22273 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-22 21:04:42 +00:00
John Criswell
57c24508d3
Fixed indentation.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22270 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-20 19:59:22 +00:00
Andrew Lenharth
558bc88a00
core changes for varargs
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-18 18:34:52 +00:00
Chris Lattner
9cb2d6167d
silence a bogus warning
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22245 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-17 13:23:32 +00:00
Nate Begeman
6dae3308f5
Fix lli linking on Mac OS X 10.4.1 for Intel.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22200 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-08 01:02:38 +00:00
Reid Spencer
628214eb74
Make sure that Cygwin assembly includes _ as part of function names.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22190 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-02 21:33:19 +00:00
Nate Begeman
be13634907
C'mon everybody, let's modify X86JITInfo.cpp. This time, we add <iostream>
...
so that the shiny new use of std::cerr is defined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22156 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-20 21:29:24 +00:00
Misha Brukman
57ebf3d6a8
Since everyone else has "fixed" this file, might as well join in the fun.
...
* Change assert() to std::cerr printout, as it will not appear in opt builds
* Add comments to clarify what #ifdef/#else/#endif match what condition(s)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22154 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-20 19:46:50 +00:00
Chris Lattner
170fbcbc63
Fix this a 3rd time :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22151 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-20 17:00:21 +00:00
Andrew Lenharth
75a51277d2
fix compilation error due to no abort being defined. There is probably a better way to do this
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22150 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-20 16:34:44 +00:00
Duraid Madina
732c843f0e
this seems dead (and broke the ia64 build, so..)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22147 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-20 06:21:59 +00:00
Jeff Cohen
8bc6f934e8
Fix tail call support in VC++ builds
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22143 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-20 01:35:39 +00:00
Chris Lattner
1030f72f8a
Fastcc passes arguments in EAX and EDX, make sure the JIT doesn't clobber them
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22137 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-19 06:49:17 +00:00
Chris Lattner
16cb6f82eb
Tailcalls require stubs to be emitted. Otherwise, the compilation callback
...
doesn't know who 'called' it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22136 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-19 05:54:33 +00:00
Chris Lattner
ea0354346f
don't reserve space for tailcall arg areas. It explicitly managed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22050 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-15 06:07:10 +00:00
Chris Lattner
5fae9ccd39
Teach reginfo how to deal with ADJSTACKPTRri, allowing us to generate:
...
add %ESP, 20
jmp %EDX # TAIL CALL
instead of:
add %ESP, -8
add %ESP, 28
jmp %EDX # TAIL CALL
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22047 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-15 05:49:58 +00:00
Chris Lattner
381e88799e
Implement proper tail calls in the X86 backend for all fastcc->fastcc
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tail calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22046 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-15 05:46:45 +00:00
Chris Lattner
1e9448bce8
Add markers in the asm file for tail calls, add a new ADJSTACKPTRri
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sorta-pseudo-instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22042 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-15 03:10:37 +00:00
Chris Lattner
0dede079e7
Yes, calltarget is the operand of the day.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22040 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-15 01:10:30 +00:00
Chris Lattner
6972177bd4
When emitting the function epilog, check to see if there already a stack
...
adjustment. If so, we merge the adjustment into the existing one. This
allows us to generate:
caller2:
sub %ESP, 12
mov DWORD PTR [%ESP], 0
mov %EAX, 1234567890
mov %EDX, 0
call func2
add %ESP, 8
ret 4
intead of:
caller2:
sub %ESP, 12
mov DWORD PTR [%ESP], 0
mov %EAX, 1234567890
mov %EDX, 0
call func2
sub %ESP, 4
add %ESP, 12
ret 4
for X86/fast-cc-merge-stack-adj.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22038 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 23:53:43 +00:00
Chris Lattner
2b3d56ee72
Add some new instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22036 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 23:35:21 +00:00
Chris Lattner
920c0aa9c2
Pass i64 values correctly split in reg/mem to fastcc calls.
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This fixes fourinarow with -enable-x86-fastcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22022 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 12:03:10 +00:00
Chris Lattner
239738a162
Use target-specific nodes for calls. This allows the fastcc code to not have
...
to do ugly hackery to avoid emitting code like this:
call foo
mov vreg, EAX
adjcallstackup ...
If foo is a fastcc call and if vreg gets spilled, we might end up with this:
call foo
mov [ESP+offset], EAX ;; Offset doesn't consider the 12!
sub ESP, 12
Which is bad. The previous hacky code to deal with this was A) gross B) not
good enough. In particular, it could miss cases and emit the bad code above.
Now we always emit this:
call foo
adjcallstackup ...
mov vreg, EAX
directly.
This makes fastcc with callees poping the stack work much better. Next
stop (finally!) really is tail calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22021 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 08:48:15 +00:00
Chris Lattner
67649dfc32
use a target-specific node and custom expander to lower long->FP to FILD64m.
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This should fix some missing symbols problems on BSD and improve performance
of programs that use that operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22012 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 06:52:07 +00:00
Chris Lattner
10d2645710
Make sure the start of the arg area and the end (after the RA is pushed)
...
is always 8-byte aligned for fastcc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21995 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 23:49:10 +00:00
Chris Lattner
653f7230ad
fix typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21991 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 22:46:57 +00:00
Chris Lattner
06cebb456a
Fix the problems with callee popped argument lists
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21988 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 22:13:49 +00:00
Chris Lattner
ca96c8217d
Don't emit SAR X, 0 in the case of sdiv Y, 2
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21986 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 21:50:27 +00:00
Chris Lattner
a96e577f53
Fix UnitTests/2005-05-13-SDivTwo.c
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21985 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 21:48:20 +00:00
Chris Lattner
3648c67eb2
switch to having the callee pop stack operands for fastcc. This is currently buggy
...
do not use
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21984 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 21:44:04 +00:00
Chris Lattner
24ddc6d067
allow RETI
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21980 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 20:46:35 +00:00
Chris Lattner
2e7714ad2b
Build TAILCALL nodes in LowerCallTo, treat them like normal calls everywhere.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21976 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 20:29:13 +00:00
Chris Lattner
adf6a965a3
Add an isTailCall flag to LowerCallTo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21958 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 18:50:42 +00:00
Chris Lattner
1be4811d34
add 'ret imm' instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21945 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 17:56:48 +00:00
Chris Lattner
63602fb868
Do not CopyFromReg physregs for live-in values. Instead, create a vreg for
...
each live in, and copy the regs from the vregs. As the very first thing we
do in the function, insert copies from the pregs to the vregs. This fixes
problems where the token chain of CopyFromReg was not enough to allow reordering
of the copyfromreg nodes and other unchained nodes (e.g. div, which clobbers
eax on intel).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21932 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 07:38:09 +00:00
Chris Lattner
16cd04d26c
rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21915 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 23:24:06 +00:00
Chris Lattner
c6f4181923
Add a new -enable-x86-fastcc option that enables passing the first
...
two integer values in registers for the fastcc calling conv.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21912 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 23:06:28 +00:00
Chris Lattner
c57f682113
Pass in Calling Convention to use into LowerCallTo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21899 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 19:56:45 +00:00
Chris Lattner
6649418598
Enable pattern isel by default
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21898 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 19:56:09 +00:00
Chris Lattner
c610d4267f
X86 has more than just 32-bit registers
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21857 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:00:34 +00:00
Chris Lattner
6415bb4c29
Convert feature of the simple isel over for the pattern isel to use.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21840 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 03:53:18 +00:00
Jeff Cohen
19bb2283e6
Silence some VC++ warnings
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21838 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-10 02:22:38 +00:00
Chris Lattner
966cdfb600
Implement READPORT/WRITEPORT, implementing the last X86 regression tests
...
that were failing with the pattern selector. Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21831 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 21:17:38 +00:00
Chris Lattner
cecd67b432
do not emit illegal instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21830 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 21:06:04 +00:00
Chris Lattner
82c7897f49
Fix the syntax of the i/o instructions, these are obviously unused.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21829 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:49:20 +00:00
Chris Lattner
4e6ce5f9c7
legalize readio/writeio into load/stores, fixing CodeGen/X86/io.llx with
...
the pattern isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21828 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:37:29 +00:00
Chris Lattner
a0dbf181e0
restore some non-dead code I removed last night breaking double casts to
...
uint
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21821 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 18:37:02 +00:00
Chris Lattner
a80d2bd89c
Wrap long lines, remove dead code that is now handled by legalize
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21811 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 05:40:26 +00:00
Chris Lattner
2afa1910d4
Fix FP -> bool casts
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21810 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 05:33:18 +00:00
Chris Lattner
e3e0f2765a
Fix X86/2005-05-08-FPStackifierPHI.ll: ugly gross hack.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21801 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 03:36:39 +00:00
Andrew Lenharth
b5884d3116
fix typo
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21693 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 19:25:37 +00:00
Andrew Lenharth
691ef2ba06
Implement count leading zeros (ctlz), count trailing zeros (cttz), and count
...
population (ctpop). Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.
More coming soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 17:19:30 +00:00
Chris Lattner
c5dcb53bea
Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by
...
Morten Ofstad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21632 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:25:35 +00:00
Chris Lattner
5434b429c8
Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21631 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:12:40 +00:00
Chris Lattner
2c56e8a23e
Add support for FSQRT node, patch contributed by Morten Ofstad
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21610 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 22:07:18 +00:00
Chris Lattner
5afc124bdf
Add some new X86 instrs, patch contributed by Morten Ofstad
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21608 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:50:05 +00:00
Chris Lattner
3b6b63711e
Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21607 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:48:42 +00:00
Andrew Lenharth
2d86ea21dd
Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends.
...
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*. Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-27 20:10:01 +00:00
Misha Brukman
0e0a7a45d3
* Remove trailing whitespace
...
* Convert tabs to spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21426 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 23:38:14 +00:00
Chris Lattner
109026290b
Handle stores of global address as stores of immediates. Instead of:
...
test1:
movl $N, %eax
movl %eax, G
ret
emit:
test1:
movl $N, G
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21407 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 19:11:03 +00:00
Chris Lattner
75f354bd7a
Handle (store &GV -> mem) as a store immediate. This often occurs for
...
printf format strings and other stuff. Instead of generating this:
movl $l1__2E_str_1, %eax
movl %eax, (%esp)
we now emit:
movl $l1__2E_str_1, (%esp)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21406 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 19:03:24 +00:00
Nate Begeman
f8b02949e3
Make pattern isel default for ppc
...
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
0 == off
1 == on
2 == target default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21309 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-15 22:12:16 +00:00
Chris Lattner
5bf2686a1b
Fix some mysteriously missing {}'s which cause the miscompilation of
...
Olden/mst, Ptrdist/bc, Obsequi, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21274 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-13 03:29:53 +00:00
Chris Lattner
91302a10ae
Z_E_I is gone
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21267 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-13 02:39:05 +00:00
Chris Lattner
4c52f0ec8c
Use live out sets for return values instead of imp_defs, which is cleaner and faster.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21181 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-09 15:23:56 +00:00
Chris Lattner
da4d4694a8
This target does not support/want ISD::BRCONDTWOWAY
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21164 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-09 03:22:37 +00:00
Chris Lattner
6659bd7592
X86 zero extends setcc results
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21146 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-07 19:41:46 +00:00
Chris Lattner
6d027f2e6f
Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not
...
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21120 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-06 20:59:35 +00:00
Chris Lattner
8db0af1c8d
Add (untested) support for MULHS and MULHU.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21107 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-06 04:21:07 +00:00
Chris Lattner
1e6a71524e
add signed versions of the extra precision multiplies
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21106 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-06 04:19:22 +00:00
Chris Lattner
b7edaa1d08
add support for FABS and FNEG
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21015 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 05:30:17 +00:00
Chris Lattner
43fdea070c
This target doesn't support fabs/fneg yet.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21010 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 05:03:24 +00:00
Chris Lattner
b1f26fb921
add an fabs instr
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21006 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 04:31:56 +00:00