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2004-04-06Added notes on extending LLVM with new instructions, intrinsics, types, etc.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12689 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Improve code generation of long shifts by 32.Chris Lattner
On this testcase: long %test(long %X) { %Y = shr long %X, ubyte 32 ret long %Y } instead of: t: mov %EAX, DWORD PTR [%ESP + 4] mov %EAX, DWORD PTR [%ESP + 8] sar %EAX, 0 mov %EDX, 0 ret we now emit: test: mov %EAX, DWORD PTR [%ESP + 4] mov %EAX, DWORD PTR [%ESP + 8] mov %EDX, 0 ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12688 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Bugfixes: inc/dec don't set the carry flag!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12687 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Improve code for passing constant longs as arguments to function calls.Chris Lattner
For example, on this instruction: call void %test(long 1234) Instead of this: mov %EAX, 1234 mov %ECX, 0 mov DWORD PTR [%ESP], %EAX mov DWORD PTR [%ESP + 4], %ECX call test We now emit this: mov DWORD PTR [%ESP], 1234 mov DWORD PTR [%ESP + 4], 0 call test git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12686 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Emit more efficient 64-bit operations when the RHS is a constant, and oneChris Lattner
of the words of the constant is zeros. For example: Y = and long X, 1234 now generates: Yl = and Xl, 1234 Yh = 0 instead of: Yl = and Xl, 1234 Yh = and Xh, 0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12685 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Fix typeoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12684 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Add support for simple immediate handling to long instruction selection.Chris Lattner
This allows us to handle code like 'add long %X, 123456789012' more efficiently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12683 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06The sbb instructions really ARE sbb's, not adc'sChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12682 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Implement negation of longs efficiently. For this testcase:Chris Lattner
long %test(long %X) { %Y = sub long 0, %X ret long %Y } We used to generate: test: sub %ESP, 4 mov DWORD PTR [%ESP], %ESI mov %ECX, DWORD PTR [%ESP + 8] mov %ESI, DWORD PTR [%ESP + 12] mov %EAX, 0 mov %EDX, 0 sub %EAX, %ECX sbb %EDX, %ESI mov %ESI, DWORD PTR [%ESP] add %ESP, 4 ret Now we generate: test: mov %EAX, DWORD PTR [%ESP + 4] mov %EDX, DWORD PTR [%ESP + 8] neg %EAX adc %EDX, 0 neg %EDX ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12681 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Minor tweak to avoid an extra reg-reg copy that the register allocator has ↵Chris Lattner
to eliminate git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12680 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-06Two changes:Chris Lattner
* In promote32, if we can just promote a constant value, do so instead of promoting a constant dynamically. * In visitReturn inst, actually USE the promote32 argument that takes a Value* The end result of this is that we now generate this: test: mov %EAX, 0 ret instead of... test: mov %AX, 0 movzx %EAX, %AX ret for: ushort %test() { ret ushort 0 } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12679 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Merge the code generator miscompilation code into the optimizer miscompilationChris Lattner
code. This "instantly" gives us loop-extractor power to assist with the debugment of our nasty codegen issues. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12678 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Make a method publicChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12677 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Minor cleanups, remove some old debug codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12676 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Refactor and genericize codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12675 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05lli no longer takes the -quiet option!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12674 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Do not mangle intrinsics in any way!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12673 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Make full use of the Mangler interface to simplify codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12671 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Sparc don't got not "sqrtl", bum bum bumChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12670 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Kill warnings during an optimized compile where assert() disappears.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12669 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Fix PR312 and IndVarsSimplify/2004-04-05-InvokeCastCrash.llxChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12668 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05New testcase for PR312Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12667 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Fix a bug in yesterdays checkins which broke siod. siod is a great ↵Chris Lattner
testcase! :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12659 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Fix InstCombine/2004-04-04-InstCombineReplaceAllUsesWith.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12658 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05New testcase that crashes the instcombine pass. Dominance properties haveChris Lattner
no meaning if the code is not reachable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12657 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05PR82 is finally fixed!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12656 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Minor changeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12655 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Update getelementptr instruction descriptionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12654 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Support getelementptr instructions which use uint's to index into structureChris Lattner
types and can have arbitrary 32- and 64-bit integer types indexing into sequential types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12653 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Support getelementptr instructions which use uint's to index into structureChris Lattner
types and can have arbitrary 32- and 64-bit integer types indexing into sequential types. Auto-upgrade .ll files that use ubytes to index into structures to use uint's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12652 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Implement support for a new LLVM 1.3 bytecode format, which uses uint'sChris Lattner
to index into structure types and allows arbitrary 32- and 64-bit integer types to index into sequential types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12651 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05Be more restrictive with the index types we allow for sequential typesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12650 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05PR305 is now fixedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12649 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-04Add ConstantExpr::get(Sign|Zero)Extend methodsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12648 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-04In the perhaps not-to-distant future, we might support gep instructions thatChris Lattner
have non-long indices for sequential types. In order to avoid trying to figure out how the v9 backend works, we'll just hack it in the preselection pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12647 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-04Adjust to new interfaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12646 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-04Support iteration over constant instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12645 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-04Adjust to new gep_type_iterator prototypes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12644 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-03Remove a bunch of cruft that was used to be backwards compatible with the lastChris Lattner
prerelease format for LLVM bytecode files. Now we only are compatible with LLVM 1.0+. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12643 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-03Allow for use of arbitrary iterator types...Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12642 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-03Implement test/Regression/Transforms/GCSE/undefined_load.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12641 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-03New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12640 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-03Add a break in the default caseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12639 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Add autoconf support for isStandardOutAConsole ().Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12638 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Regenerated using autoheader-2.57.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12637 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Regenerated using autoconf-2.57.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12636 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02check for isatty functionBrian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12635 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Remove obsolete analysesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12634 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Remove obsolete filesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12633 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-02Add support for many of the MRegisterInfo callbacks.Brian Gaeke
Eliminating call-frame pseudo instrs and frame indices are still stubs. Flesh out the emitPrologue method based on better ABI knowledge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12632 91177308-0d34-0410-b5e6-96231b3b80d8
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