Chris Lattner [Sat, 29 Jan 2005 06:39:25 +0000 (06:39 +0000)]
Remove some useless map operations. Loads/stores that are in the same
BB as the load are not included in the Cand* sets at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19911
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Chris Lattner [Sat, 29 Jan 2005 06:31:53 +0000 (06:31 +0000)]
Before doing expensive global analysis, check to make sure the pointer is
not invalidated on entry and on exit of the block. This fixes some N^2
behavior in common cases, and speeds up gcc another 5% to 22.35s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19910
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Chris Lattner [Sat, 29 Jan 2005 06:29:45 +0000 (06:29 +0000)]
Fix quotes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19909
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Jeff Cohen [Sat, 29 Jan 2005 06:27:16 +0000 (06:27 +0000)]
Unbreak VC++ build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19908
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Chris Lattner [Sat, 29 Jan 2005 06:20:55 +0000 (06:20 +0000)]
Minor simplification/speedup. Replaces a set lookup with a pointer comparison.
This speeds up 176.gcc from 25.73s to 23.48s, which is 9.5%
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19907
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Chris Lattner [Sat, 29 Jan 2005 06:11:16 +0000 (06:11 +0000)]
Eliminate generality that is not buying us anything. In particular, this
will cause us to miss cases where the input pointer to a load could be value
numbered to another load. Something like this:
%X = load int* %P1
%Y = load int* %P2
Those are obviously the same if P1/P2 are the same. The code this patch
removes attempts to handle that. However, since GCSE iterates, this doesn't
actually buy us anything: GCSE will first replace P1 or P2 with the other
one, then the load can be value numbered as equal.
Removing this code speeds up gcse a lot. On 176.gcc in debug mode, this
speeds up gcse from 29.08s -> 25.73s, a 13% savings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19906
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Chris Lattner [Sat, 29 Jan 2005 05:57:01 +0000 (05:57 +0000)]
If we see:
%A = alloca int
%V = load int* %A
value number %V to undef, not 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19905
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Chris Lattner [Sat, 29 Jan 2005 05:21:16 +0000 (05:21 +0000)]
Memory used is a delta between memuse at the start of the time and the
memuse at the end, thus it is signed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19904
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Jeff Cohen [Sat, 29 Jan 2005 03:32:49 +0000 (03:32 +0000)]
Unbreak VC++ build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19903
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Chris Lattner [Sat, 29 Jan 2005 01:05:12 +0000 (01:05 +0000)]
Make sure that we always grow a multiple of 2 operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19902
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Chris Lattner [Sat, 29 Jan 2005 00:44:22 +0000 (00:44 +0000)]
noteworthy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19901
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Chris Lattner [Sat, 29 Jan 2005 00:39:08 +0000 (00:39 +0000)]
Adjust to changes in instruction interfaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19900
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Chris Lattner [Sat, 29 Jan 2005 00:38:45 +0000 (00:38 +0000)]
Switchinst takes a hint for the number of cases it will have.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19899
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Chris Lattner [Sat, 29 Jan 2005 00:38:26 +0000 (00:38 +0000)]
switchinst ctor now takes a hint for the number of cases that it will have.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19898
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Chris Lattner [Sat, 29 Jan 2005 00:37:36 +0000 (00:37 +0000)]
Adjust Valuehandle to hold its operand directly in it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19897
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Chris Lattner [Sat, 29 Jan 2005 00:36:59 +0000 (00:36 +0000)]
Finegrainify namespacification.
Adjust TmpInstruction to work with the new User model.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19896
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Chris Lattner [Sat, 29 Jan 2005 00:36:38 +0000 (00:36 +0000)]
add namespace qualifier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19895
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Chris Lattner [Sat, 29 Jan 2005 00:36:19 +0000 (00:36 +0000)]
Adjust to changes in User class and minor changes in instruction ctors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19894
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Chris Lattner [Sat, 29 Jan 2005 00:35:55 +0000 (00:35 +0000)]
Adjust to slight changes in instruction interfaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19893
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Chris Lattner [Sat, 29 Jan 2005 00:35:33 +0000 (00:35 +0000)]
Adjust to changes in User class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19892
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Chris Lattner [Sat, 29 Jan 2005 00:35:16 +0000 (00:35 +0000)]
Merge InstrTypes.cpp into this file
Adjust to changes in the User class, operand handling is very different.
PHI node and switch statements must handle explicit resizing of operand
lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19891
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Chris Lattner [Sat, 29 Jan 2005 00:34:39 +0000 (00:34 +0000)]
Adjust to changes in User class. Aggregate constants now must explicitly
manage their operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19890
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Chris Lattner [Sat, 29 Jan 2005 00:33:32 +0000 (00:33 +0000)]
This file is now merged into Instructions.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19889
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Chris Lattner [Sat, 29 Jan 2005 00:33:00 +0000 (00:33 +0000)]
Adjust to changes in the User class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19888
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Chris Lattner [Sat, 29 Jan 2005 00:32:51 +0000 (00:32 +0000)]
Adjust to changes in the User class. Introduce a new UnaryInstruction
class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19887
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Chris Lattner [Sat, 29 Jan 2005 00:32:00 +0000 (00:32 +0000)]
Adjust to user changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19886
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Chris Lattner [Sat, 29 Jan 2005 00:31:36 +0000 (00:31 +0000)]
Many changes to cope with the User.h changes. Instructions now generally
directly embed their operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19885
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Chris Lattner [Sat, 29 Jan 2005 00:30:52 +0000 (00:30 +0000)]
Adjust to User.h changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19884
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Chris Lattner [Sat, 29 Jan 2005 00:29:39 +0000 (00:29 +0000)]
Instead of storing operands as std::vector<Use>, just maintain a pointer
and num operands in the User class. this allows us to embed the operands
directly in the subclasses if possible. For example, for binary operators
we store the two operands in the derived class.
The has several effects:
1. it improves locality because the operands and instruction are together
2. it makes accesses to operands faster (one less load) if you access them
through the derived class pointer. For example this:
Value *GetBinaryOperatorOp(BinaryOperator *I, int i) {
return I->getOperand(i);
}
Was compiled to:
_Z19GetBinaryOperatorOpPN4llvm14BinaryOperatorEi:
movl 4(%esp), %edx
movl 8(%esp), %eax
sall $4, %eax
movl 24(%edx), %ecx
addl %ecx, %eax
movl (%eax), %eax
ret
and is now compiled to:
_Z19GetBinaryOperatorOpPN4llvm14BinaryOperatorEi:
movl 8(%esp), %eax
movl 4(%esp), %edx
sall $4, %eax
addl %edx, %eax
movl 44(%eax), %eax
ret
Accesses through "Instruction*" are unmodified.
3. This reduces memory consumption (by about 3%) by eliminating 1 word of
vector overhead and a malloc header on a seperate object.
4. This speeds up gccas about 10% (both debug and release builds) on
large things (such as 176.gcc). For example, it takes a debug build
from 172.9 -> 155.6s and a release gccas from 67.7 -> 61.8s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19883
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Andrew Lenharth [Fri, 28 Jan 2005 23:17:54 +0000 (23:17 +0000)]
fix ExprMap, partially teach about add long
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19882
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Chris Lattner [Fri, 28 Jan 2005 23:17:27 +0000 (23:17 +0000)]
Fix a nasty thinko in my previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19881
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Chris Lattner [Fri, 28 Jan 2005 22:58:25 +0000 (22:58 +0000)]
Alpha doesn't have a native f32 extload instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19880
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Chris Lattner [Fri, 28 Jan 2005 22:52:50 +0000 (22:52 +0000)]
implement legalization of truncates whose results and sources need to be
truncated, e.g. (truncate:i8 something:i16) on a 32 or 64-bit RISC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19879
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Chris Lattner [Fri, 28 Jan 2005 22:29:18 +0000 (22:29 +0000)]
Get alpha working with memset/memcpy/memmove
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19878
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Reid Spencer [Fri, 28 Jan 2005 19:52:32 +0000 (19:52 +0000)]
Fix some typos in the Makefile.rules.
Patch contributed by Vladimer Merzliakov.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19877
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Chris Lattner [Fri, 28 Jan 2005 19:37:35 +0000 (19:37 +0000)]
Hrm, who knows what 'uint' is, but it seems to work sometimes? Wierd.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19876
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Chris Lattner [Fri, 28 Jan 2005 19:32:01 +0000 (19:32 +0000)]
* add some DEBUG statements
* Properly compile this:
struct a {};
int test() {
struct a b[2];
if (&b[0] != &b[1])
abort ();
return 0;
}
to 'return 0', not abort().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19875
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Chris Lattner [Fri, 28 Jan 2005 19:09:51 +0000 (19:09 +0000)]
Fix ConstProp/2005-01-28-SetCCGEP.ll: indexing over zero sized elements does
not change the address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19874
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Chris Lattner [Fri, 28 Jan 2005 19:08:32 +0000 (19:08 +0000)]
New testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19873
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Chris Lattner [Fri, 28 Jan 2005 17:22:53 +0000 (17:22 +0000)]
Add some initial documentation for the SelectionDAG based instruction selectors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19872
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Chris Lattner [Fri, 28 Jan 2005 16:08:23 +0000 (16:08 +0000)]
Do not clean up if the MappedFile was never used or if the client already
closed the file. This unbreaks the build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19871
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Andrew Lenharth [Fri, 28 Jan 2005 14:06:46 +0000 (14:06 +0000)]
fix ExprMap and constant check in setcc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19870
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Jeff Cohen [Fri, 28 Jan 2005 07:29:32 +0000 (07:29 +0000)]
Get VC++ compiling again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19869
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Reid Spencer [Fri, 28 Jan 2005 07:22:20 +0000 (07:22 +0000)]
Convert some old C-style casts to C++ style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19868
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Andrew Lenharth [Fri, 28 Jan 2005 06:57:18 +0000 (06:57 +0000)]
move FP into it's own select
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19867
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Chris Lattner [Fri, 28 Jan 2005 06:27:38 +0000 (06:27 +0000)]
CopyFromReg produces two values. Make sure that we remember that both are
legalized, and actually return the correct result when we legalize the chain first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19866
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Chris Lattner [Fri, 28 Jan 2005 06:13:52 +0000 (06:13 +0000)]
These passes are no more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19865
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Chris Lattner [Fri, 28 Jan 2005 06:12:46 +0000 (06:12 +0000)]
Remove this code as it is currently completely broken and unmaintained.
If needed, this can be resurrected from CVS.
Note that several of the interfaces (e.g. the IPModRef ones) are supersumed
by generic AliasAnalysis interfaces that have been written since this code
was developed (and they are not DSA specific).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19864
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Jeff Cohen [Fri, 28 Jan 2005 01:17:07 +0000 (01:17 +0000)]
Properly close mapped files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19863
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Misha Brukman [Thu, 27 Jan 2005 17:59:51 +0000 (17:59 +0000)]
Mark -parallel pass as `experimental'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19858
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Andrew Lenharth [Thu, 27 Jan 2005 08:31:19 +0000 (08:31 +0000)]
stack frame fix and zero FP reg fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19857
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Andrew Lenharth [Thu, 27 Jan 2005 07:58:15 +0000 (07:58 +0000)]
Floating point instructions like Floating point registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19856
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Andrew Lenharth [Thu, 27 Jan 2005 07:50:35 +0000 (07:50 +0000)]
int to float conversion and another setcc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19855
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Misha Brukman [Thu, 27 Jan 2005 06:46:38 +0000 (06:46 +0000)]
Fix grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19854
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Andrew Lenharth [Thu, 27 Jan 2005 03:49:45 +0000 (03:49 +0000)]
teach isel about comparison with constants and zero extending bits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19853
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Jeff Cohen [Thu, 27 Jan 2005 03:49:03 +0000 (03:49 +0000)]
Fix some Path bugs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19852
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Andrew Lenharth [Thu, 27 Jan 2005 01:22:48 +0000 (01:22 +0000)]
perhaps this will let me have calls again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19851
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Andrew Lenharth [Thu, 27 Jan 2005 00:52:26 +0000 (00:52 +0000)]
minor bug fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19850
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Andrew Lenharth [Thu, 27 Jan 2005 00:51:05 +0000 (00:51 +0000)]
minor bug fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19849
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Andrew Lenharth [Wed, 26 Jan 2005 23:56:48 +0000 (23:56 +0000)]
added instructions for fp to int to fp moves
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19848
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Andrew Lenharth [Wed, 26 Jan 2005 21:54:09 +0000 (21:54 +0000)]
initial fp support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19847
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Chris Lattner [Wed, 26 Jan 2005 07:09:44 +0000 (07:09 +0000)]
xfail this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19846
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Chris Lattner [Wed, 26 Jan 2005 07:08:42 +0000 (07:08 +0000)]
XFAIL this for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19845
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Andrew Lenharth [Wed, 26 Jan 2005 02:53:56 +0000 (02:53 +0000)]
hum, writing on one machine, testing on another...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19844
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Andrew Lenharth [Wed, 26 Jan 2005 01:24:38 +0000 (01:24 +0000)]
add some operations, fix others. should compile several more tests now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19843
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Chris Lattner [Tue, 25 Jan 2005 20:35:10 +0000 (20:35 +0000)]
We can fold promoted and non-promoted loads into divs also!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19835
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Chris Lattner [Tue, 25 Jan 2005 20:03:11 +0000 (20:03 +0000)]
Fold promoted loads into binary ops for FP, allowing us to generate m32 forms
of FP ops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19834
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Andrew Lenharth [Tue, 25 Jan 2005 19:58:40 +0000 (19:58 +0000)]
problems with bools, and their work arounds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19833
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Alkis Evlogimenos [Tue, 25 Jan 2005 16:23:57 +0000 (16:23 +0000)]
Add a dependency to the trace library so that it gets pulled in
automatically.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19828
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Reid Spencer [Tue, 25 Jan 2005 05:04:49 +0000 (05:04 +0000)]
Document the --load option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19822
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Andrew Lenharth [Tue, 25 Jan 2005 00:35:34 +0000 (00:35 +0000)]
more load choices, better add with imm
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19821
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Chris Lattner [Mon, 24 Jan 2005 20:00:14 +0000 (20:00 +0000)]
Make -ds-aa more useful, allowing it to be updated as xforms hack on the program.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19818
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Chris Lattner [Mon, 24 Jan 2005 19:55:34 +0000 (19:55 +0000)]
Add some methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19817
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Andrew Lenharth [Mon, 24 Jan 2005 19:44:07 +0000 (19:44 +0000)]
Clean ups, and taught the instruction selector about immediate forms
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19816
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Andrew Lenharth [Mon, 24 Jan 2005 18:48:22 +0000 (18:48 +0000)]
Alpha JIT prune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19815
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Andrew Lenharth [Mon, 24 Jan 2005 18:45:41 +0000 (18:45 +0000)]
include prune and JIT prune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19814
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Andrew Lenharth [Mon, 24 Jan 2005 18:37:48 +0000 (18:37 +0000)]
Pruned includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19813
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Andrew Lenharth [Mon, 24 Jan 2005 17:33:52 +0000 (17:33 +0000)]
let configure recognize Alphas
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19811
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Andrew Lenharth [Mon, 24 Jan 2005 17:25:41 +0000 (17:25 +0000)]
let configure recognize Alphas
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19810
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Misha Brukman [Mon, 24 Jan 2005 16:29:24 +0000 (16:29 +0000)]
Mark CVS versions different from releases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19809
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Misha Brukman [Mon, 24 Jan 2005 16:28:03 +0000 (16:28 +0000)]
`primitive' has no `a'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19808
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Chris Lattner [Mon, 24 Jan 2005 16:00:52 +0000 (16:00 +0000)]
Do not return true from isSized for things without a size (like functions and
labels) even though they are concrete. This fixes the DSA regressions from
last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19807
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Chris Lattner [Mon, 24 Jan 2005 02:08:34 +0000 (02:08 +0000)]
This giant patch speeds up Type::isSized(). Before, this would have to search
large nested types over and over again to determine if they are sized or not.
Now, isSized() is able to make snap decisions about all concrete types, which
are a common occurance (and includes all primitives).
On 177.mesa, this speeds up DSE from 39.5s -> 21.3s and GCSE from
13.2s -> 11.3s, reducing gccas time from 80s -> 61s (this is a debug build).
DSE and GCSE are still too slow on this testcase, but this is a simple
improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19800
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Chris Lattner [Mon, 24 Jan 2005 01:40:18 +0000 (01:40 +0000)]
Fix a spurious warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19799
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Chris Lattner [Sun, 23 Jan 2005 23:20:06 +0000 (23:20 +0000)]
Silence a warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19798
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Chris Lattner [Sun, 23 Jan 2005 23:19:44 +0000 (23:19 +0000)]
Silence optimized warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19797
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Chris Lattner [Sun, 23 Jan 2005 23:13:59 +0000 (23:13 +0000)]
Allow the FP stackifier to completely ignore functions that do not use FP at
all. This should speed up the X86 backend fairly significantly on integer
codes. Now if only we didn't have to compute livevar still... ;-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19796
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Chris Lattner [Sun, 23 Jan 2005 23:13:12 +0000 (23:13 +0000)]
Simplify/speedup the PEI by not having to scan for uses of the callee saved
registers. This information is computed directly by the register allocator
now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19795
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Chris Lattner [Sun, 23 Jan 2005 22:57:27 +0000 (22:57 +0000)]
Add an accessor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19794
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Chris Lattner [Sun, 23 Jan 2005 22:55:45 +0000 (22:55 +0000)]
Update physregsused info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19793
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Chris Lattner [Sun, 23 Jan 2005 22:51:56 +0000 (22:51 +0000)]
Update this pass to set PhysRegsUsed info in MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19792
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Chris Lattner [Sun, 23 Jan 2005 22:45:13 +0000 (22:45 +0000)]
Update these register allocators to set the PhysRegUsed info in MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19791
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Chris Lattner [Sun, 23 Jan 2005 22:13:58 +0000 (22:13 +0000)]
Add support for the PhysRegsUsed array.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19789
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Chris Lattner [Sun, 23 Jan 2005 22:13:36 +0000 (22:13 +0000)]
Expose more information from register allocation to passes that run after
it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19788
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Chris Lattner [Sun, 23 Jan 2005 21:45:01 +0000 (21:45 +0000)]
Speed this up a bit by making ModifiedRegs a vector<char> not vector<bool>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19787
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Chris Lattner [Sun, 23 Jan 2005 20:26:55 +0000 (20:26 +0000)]
Get rid of a several dozen more and instructions in specint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19786
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Chris Lattner [Sun, 23 Jan 2005 06:02:40 +0000 (06:02 +0000)]
Fix crash comparing empty file against nonempty file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19782
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Chris Lattner [Sun, 23 Jan 2005 04:42:50 +0000 (04:42 +0000)]
Adjust to changes in SelectionDAG interfaces
The first half of correct chain insertion for libcalls. This is not enough
to fix Fhourstones yet though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19781
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Chris Lattner [Sun, 23 Jan 2005 04:39:44 +0000 (04:39 +0000)]
Remove the 3 HACK HACK HACKs I put in before, fixing them properly with
the new TLI that is available.
Implement support for handling out of range shifts. This allows us to
compile this code (a 64-bit rotate):
unsigned long long f3(unsigned long long x) {
return (x << 32) | (x >> (64-32));
}
into this:
f3:
mov %EDX, DWORD PTR [%ESP + 4]
mov %EAX, DWORD PTR [%ESP + 8]
ret
GCC produces this:
$ gcc t.c -masm=intel -O3 -S -o - -fomit-frame-pointer
..
f3:
push %ebx
mov %ebx, DWORD PTR [%esp+12]
mov %ecx, DWORD PTR [%esp+8]
mov %eax, %ebx
mov %edx, %ecx
pop %ebx
ret
The Simple ISEL produces (eww gross):
f3:
sub %ESP, 4
mov DWORD PTR [%ESP], %ESI
mov %EDX, DWORD PTR [%ESP + 8]
mov %ECX, DWORD PTR [%ESP + 12]
mov %EAX, 0
mov %ESI, 0
or %EAX, %ECX
or %EDX, %ESI
mov %ESI, DWORD PTR [%ESP]
add %ESP, 4
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19780
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Chris Lattner [Sun, 23 Jan 2005 04:36:26 +0000 (04:36 +0000)]
Adjust to changes in SelectionDAG interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19779
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