Commit Graph

68 Commits

Author SHA1 Message Date
Reid Spencer 2eadb5310d For PR970:
Clean up handling of isFloatingPoint() and dealing with PackedType.
Patch by Gordon Henriksen!

llvm-svn: 33415
2007-01-21 00:29:26 +00:00
Reid Spencer a94d394ad2 For PR1043:
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.

llvm-svn: 33370
2007-01-19 21:13:56 +00:00
Chris Lattner 03c4953cdd rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
2007-01-15 02:27:26 +00:00
Chris Lattner 1942249c5b Eliminate calls to isInteger, generalizing code and tightening checks as needed.
llvm-svn: 33218
2007-01-15 01:55:30 +00:00
Reid Spencer 7a9c62baa6 For PR1064:
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.

llvm-svn: 33113
2007-01-12 07:05:14 +00:00
Reid Spencer 8f166b0ef3 Comparison of primitive type sizes should now be done in bits, not bytes.
This patch converts getPrimitiveSize to getPrimitiveSizeInBits where it is
appropriate to do so (comparison of integer primitive types).

llvm-svn: 33012
2007-01-08 16:32:00 +00:00
Reid Spencer c635f47d9a For PR950:
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int   -> Int32
4. [U]Long  -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
   and other methods related to signedness. In a few places this warranted
   identifying the signedness information from other sources.

llvm-svn: 32785
2006-12-31 05:48:39 +00:00
Reid Spencer 266e42b312 For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751
2006-12-23 06:05:41 +00:00
Chris Lattner f171af97d5 add a simple fast-path for dead allocas
llvm-svn: 32750
2006-12-22 23:14:42 +00:00
Chris Lattner 79a42ac941 Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
converted, we lose a static initializer.  This also allows GCC to emit warnings
about unused statistics.

llvm-svn: 32690
2006-12-19 21:40:18 +00:00
Chris Lattner 8f7b775bf4 re-enable a temporarily-reverted patch
llvm-svn: 32595
2006-12-15 07:32:38 +00:00
Chris Lattner 7c1dff99dc revert my recent int<->fp and vector union promotion changes, they expose
obscure bugs affecting the X86 code generator.  I will reenable this
when fixed.

llvm-svn: 32524
2006-12-13 02:26:45 +00:00
Chris Lattner 6e5fe376ec Patch for PR1045 and Transforms/ScalarRepl/2006-12-11-SROA-Crash.ll
llvm-svn: 32468
2006-12-12 04:24:41 +00:00
Chris Lattner e810140c4b trunc to integer, not to FP.
llvm-svn: 32426
2006-12-11 01:17:00 +00:00
Chris Lattner 23f4b68f7e implement promotion of unions containing two packed types of the same width.
This implements Transforms/ScalarRepl/union-packed.ll

llvm-svn: 32422
2006-12-11 00:35:08 +00:00
Chris Lattner 216c3028e6 * Eliminate calls to CastInst::createInferredCast.
* Add support for promoting unions with fp values in them.  This produces
   our new int<->fp bitcast instructions, implementing
   Transforms/ScalarRepl/union-fp-int.ll

As an example, this allows us to compile this:

union intfloat { int i; float f; };
float invsqrt(const float arg_x) {
    union intfloat x = { .f = arg_x };
    const float xhalf = arg_x * 0.5f;
    x.i = 0x5f3759df - (x.i >> 1);
    return x.f * (1.5f - xhalf * x.f * x.f);
}

into:

_invsqrt:
        movss 4(%esp), %xmm0
        movd %xmm0, %eax
        sarl %eax
        movl $1597463007, %ecx
        subl %eax, %ecx
        movd %ecx, %xmm1
        mulss LCPI1_0, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        mulss %xmm1, %xmm0
        subss %xmm0, %xmm2
        movl 8(%esp), %eax
        mulss %xmm2, %xmm1
        movss %xmm1, (%eax)
        ret

instead of:

_invsqrt:
        subl $4, %esp
        movss 8(%esp), %xmm0
        movss %xmm0, (%esp)
        movl (%esp), %eax
        movl $1597463007, %ecx
        sarl %eax
        subl %eax, %ecx
        movl %ecx, (%esp)
        mulss LCPI1_0, %xmm0
        movss (%esp), %xmm1
        mulss %xmm1, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        subss %xmm0, %xmm2
        mulss %xmm2, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        addl $4, %esp
        ret

llvm-svn: 32418
2006-12-10 23:56:50 +00:00
Chris Lattner 700b873130 Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.

llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Reid Spencer 6c38f0bb07 For PR950:
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931
2006-11-27 01:05:10 +00:00
Bill Wendling 5dbf43c983 Removed #include <iostream> and replaced with llvm_* streams.
llvm-svn: 31923
2006-11-26 09:46:52 +00:00
Reid Spencer fdff938a7e For PR950:
This patch converts the old SHR instruction into two instructions,
AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not
dependent on the sign of their operands.

llvm-svn: 31542
2006-11-08 06:47:33 +00:00
Chris Lattner 4967f6ddea scalarrepl should not split the two elements of the vsiidx array:
int func(vFloat v0, vFloat v1) {
        int ii;
        vSInt32 vsiidx[2];
        vsiidx[0] = _mm_cvttps_epi32(v0);
        vsiidx[1] = _mm_cvttps_epi32(v1);
        ii = ((int *) vsiidx)[4];
        return ii;
}

This fixes Transforms/ScalarRepl/2006-11-07-InvalidArrayPromote.ll

llvm-svn: 31524
2006-11-07 22:42:47 +00:00
Reid Spencer de46e48420 For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner ebb1ad4382 Fix Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll
llvm-svn: 31151
2006-10-24 06:26:32 +00:00
Reid Spencer e0fc4dfc22 For PR950:
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063
2006-10-20 07:07:24 +00:00
Chris Lattner 41b442242d Implement SROA of unions with mixed pointers/integers in them. This implements
PR892 and Transforms/ScalarRepl/union-pointer.ll:test2

llvm-svn: 30825
2006-10-08 23:53:04 +00:00
Chris Lattner 05f8272afa Implement Transforms/ScalarRepl/union-pointer.ll:test
llvm-svn: 30823
2006-10-08 23:28:04 +00:00
Chris Lattner c2d3d3112e eliminate RegisterOpt. It does the same thing as RegisterPass.
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
Chris Lattner 3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Chris Lattner 996795b0dd Use hidden visibility to make symbols in an anonymous namespace get
dropped.  This shrinks libllvmgcc.dylib another 67K

llvm-svn: 28975
2006-06-28 23:17:24 +00:00
Chris Lattner dae49df407 Fix Transforms/ScalarRepl/2006-04-20-PromoteCrash.ll
llvm-svn: 27912
2006-04-20 20:48:50 +00:00
Chris Lattner 3323ce165d Teach scalarrepl to promote unions of vectors and floats, producing
insert/extractelement operations.  This implements
Transforms/ScalarRepl/vector_promote.ll

llvm-svn: 27710
2006-04-14 21:42:41 +00:00
Chris Lattner fc34f8bb48 Fix a miscompilation of 188.ammp with the new CFE. 188.ammp is accessing
arrays out of range in a horrible way, but we shouldn't break it anyway.
Details in the comments.

llvm-svn: 26606
2006-03-08 01:05:29 +00:00
Chris Lattner c0f633a598 Fix Regression/Transforms/ScalarRepl/2006-01-24-IllegalUnionPromoteCrash.ll
llvm-svn: 25587
2006-01-24 19:36:27 +00:00
Chris Lattner c597b8a55e Make iostream #inclusion explicit
llvm-svn: 25514
2006-01-22 23:32:06 +00:00
Chris Lattner 8c9e14620f Fix Transforms/ScalarRepl/2005-12-14-UnionPromoteCrash.ll, a crash on undefined
behavior in 126.gcc on big-endian systems.

llvm-svn: 24708
2005-12-14 17:23:59 +00:00
Chris Lattner 3b0a62d8a5 Implement a little hack for parity with GCC on crafty. This speeds up
186.crafty by about 16% (from 15.109s to 13.045s) on my system.

This turns allocas with unions/casts into scalars.  For example crafty has
something like this:

    union doub {
      unsigned short i[4];
      long long d;
    };
int f(long long a) {
  return ((union doub){.d=a}).i[1];
}

Instead of generating loads and stores to an alloca, we now promote the
whole thing to a scalar long value.

This implements: Transforms/ScalarRepl/AggregatePromote.ll

llvm-svn: 24667
2005-12-12 07:19:13 +00:00
Nate Begeman 848622f87f Add support alignment of allocation instructions.
Add support for specifying alignment and size of setjmp jmpbufs.

No targets currently do anything with this information, nor is it presrved
in the bytecode representation.  That's coming up next.

llvm-svn: 24196
2005-11-05 09:21:28 +00:00
Misha Brukman b1c9317bb4 Remove trailing whitespace
llvm-svn: 21427
2005-04-21 23:48:37 +00:00
Chris Lattner ce274ce93d Silence warnings
llvm-svn: 19379
2005-01-08 19:34:41 +00:00
Reid Spencer 9339638e9c Remove unused variable for compilation by VC++.
Patch contributed by Morten Ofstad.

llvm-svn: 17830
2004-11-15 17:29:41 +00:00
Chris Lattner fe3f4e6ebd Teach SROA how to promote an array index that is variable, if the dimension
of the array is just two.  This occurs 8 times in gcc, 6 times in crafty, and
12 times in 099.go.

This implements ScalarRepl/sroa_two.ll

llvm-svn: 17727
2004-11-14 05:00:19 +00:00
Chris Lattner 8881912d71 Rearrange some code, no functionality changes.
llvm-svn: 17724
2004-11-14 04:24:28 +00:00
Chris Lattner 3e86084641 Prototype these functions more accurately
llvm-svn: 16432
2004-09-20 04:43:15 +00:00
Reid Spencer 7c16caa336 Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
2004-09-01 22:55:40 +00:00
Misha Brukman 2b3387a6d9 Fix #includes of i*.h => Instructions.h as per PR403.
llvm-svn: 15328
2004-07-29 17:05:13 +00:00
Chris Lattner 9a63520b1a Fixes working towards PR341
llvm-svn: 14839
2004-07-15 01:50:47 +00:00
Chris Lattner b5f8eb8315 Do not loop over uses as we delete them. This causes iterators to be
invalidated out from under us.  This bug goes back to revision 1.1: scary.

llvm-svn: 14242
2004-06-19 02:02:22 +00:00
Chris Lattner 69193f93b6 Support getelementptr instructions which use uint's to index into structure
types and can have arbitrary 32- and 64-bit integer types indexing into
sequential types.

llvm-svn: 12653
2004-04-05 01:30:19 +00:00
Chris Lattner 40d2aeb28f Finegrainify namespacification
Fix regressions ScalarRepl/basictest.ll & arraytest.ll

llvm-svn: 10287
2003-12-02 17:43:55 +00:00
Chris Lattner 52310702a1 Do not use index type to determine what it is indexing into!
llvm-svn: 10226
2003-11-25 21:09:18 +00:00