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2006-12-18Convert the last uses of CastInst::createInferredCast to a normal castReid Spencer
creation. These changes are still temporary but at least this pushes knowledge of signedness out closer to where it can be determined properly and allows signedness to be removed from VMCore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32654 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-18Convert the last use of two-argument ConstantExpr::getCast into anotherReid Spencer
form so we can remove that method from ConstantExpr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32652 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-17Added an automatic cast to "std::ostream*" etc. from OStream. We then canBill Wendling
rework the hacks that had us passing OStream in. We pass in std::ostream* instead, check for null, and then dispatch to the correct print() method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32636 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-16when inserting a dummy argument to work-around the CBE not supportingChris Lattner
zero arg vararg functions, pass undef instead of 'int 0', which is cheaper. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32634 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-15re-enable a temporarily-reverted patchChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32595 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13Fix a bug in EvaluateInDifferentType. The type of operand should not beReid Spencer
used to determine whether a ZExt or SExt cast is performed. Instead, pass an "isSigned" bool to the function and determine its value from the opcode of the cast involved. Also, clean up some cruft from previous patches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13Implement review feedback. Most of this has to do with removing unnecessaryReid Spencer
cast instructions. A few are bug fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32544 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13For mul transforms, when checking for a cast from bool as either operand,Reid Spencer
make sure to also check that it is a zext from bool, not any other cast operation type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32539 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13Fix and/or/xor (cast A), (cast B) --> cast (and/or/xor A, B)Reid Spencer
The cast patch introduced the possibility that the wrong cast opcode could be used and that this transform could trigger on different kinds of cast operations. This patch rectifies that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32538 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13Change the interface to SCEVExpander::InsertCastOfTo to take a cast opcodeReid Spencer
so the decision of which opcode to use is pushed upward to the caller. Adjust the callers to pass the expected opcode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32535 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13Fix some casts. isdigit(c) returns 0 or 1, not 0 or -1Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32534 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13revert my recent int<->fp and vector union promotion changes, they exposeChris Lattner
obscure bugs affecting the X86 code generator. I will reenable this when fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32524 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13Replace CastInst::createInferredCast calls with more accurate castReid Spencer
creation calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32521 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Replace inferred getCast(V,Ty) calls with more strict variants.Reid Spencer
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match the the casting mnemonics in the rest of LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12this can be trunc or bitcast, per line 3092.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32487 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Fix regression on 400.perlbench last night.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32486 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Fix numerous inferred casts.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Fix the casting for the computation of the Malloc size.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32477 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Change inferred getCast into specific getCast. Passes all tests.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32469 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12Patch for PR1045 and Transforms/ScalarRepl/2006-12-11-SROA-Crash.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32468 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11trunc to integer, not to FP.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32426 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11implement promotion of unions containing two packed types of the same width.Chris Lattner
This implements Transforms/ScalarRepl/union-packed.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32422 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-10 * Eliminate calls to CastInst::createInferredCast.Chris Lattner
* 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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32418 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-08Incorporate any changes in the successor blocks into the result ofReid Spencer
MarkAliveBlocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32375 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07What should be the last unnecessary <iostream>s in the library.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32333 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07Removing even more <iostream> includes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, areBill Wendling
now cerr, cout, and NullStream resp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06Update ConstantIntegral Max/Min tests for new interface.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32288 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06add missing #includeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32280 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06Detemplatize the Statistic class. The only type it is instantiated withChris Lattner
is 'unsigned'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06Remove the 'printname' argument to WriteAsOperand. It is always true, andChris Lattner
passing false would make the asmprinter fail anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06counter should be unsigned.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-05add an instcombine xform. This speeds up 462.libquantum from 9.78s toChris Lattner
7.48s. This regression is due to unforseen consequences of the cast patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32209 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04SCCP does not handle Packed Type properly. Disable Packed Type handlingDevang Patel
for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32208 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04Update call to CastInst::getCastOpcode for its new signature.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32166 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02Unbreak VC++ build.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32113 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02disable transformations that are invalid for fp vectors. This fixesChris Lattner
Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32112 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30Remove 4 FIXMEs to hack around cast-to-bool problems which no longer exist.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32051 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30make it clear that this is always a zextChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32044 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30One more bugfix, 3 cases of making casts explicit.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32043 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30Fix a bug in globalopt due to the recent cast patch.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32042 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29implement cast.ll:test35. With this, we recognize:Chris Lattner
unsigned short swp(unsigned short a) { return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8); } as an idiom for bswap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32011 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29Teach instcombine to turn trunc(srl x, c) -> srl (trunc(x), c) when safe.Chris Lattner
This implements InstCombine/cast.ll:test34. It fires hundreds of times on 176.gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29Implement Regression/Transforms/InstCombine/bswap-fold.ll,Chris Lattner
folding seteq (bswap(x)), c -> seteq(x,bswap(c)) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32006 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29Join a split line.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31996 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28Undo the last patch until 253.perlbmk passes with these changes.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31977 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28Remove 4 FIXME's from the CAST patch now that the back end is correctlyReid Spencer
producing code for "trunc to bool". This passes all tests on Linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31963 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27Fix PR1014 and InstCombine/2006-11-27-XorBug.ll.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31941 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27For PR950:Reid Spencer
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-26Remove #include <iostream> and use llvm_* streams instead.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31925 91177308-0d34-0410-b5e6-96231b3b80d8
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