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2007-09-18Merge from mainline. Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_21@42083 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-18Merge from mainline.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_21@42082 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11Remove (somewhat confusing) Imp<> helper, use let Defs = [], Uses = [] instead.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41863 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11Added status flags register: EFLAGS.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41862 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11Add APInt interfaces to APFloat (allows directlyDale Johannesen
access to bits). Use them in place of float and double interfaces where appropriate. First bits of x86 long double constants handling (untested, probably does not work). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11Add a bool to indicate if we should set the "indirect encoding" bit in the DwarfBill Wendling
information for EH. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41852 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11Fold the adjust_trampoline intrinsic intoDuncan Sands
init_trampoline. There is now only one trampoline intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41841 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11My compiler warns about the semicolon.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41840 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11The personality function on Darwin needs a global stub. We then refer toBill Wendling
that global stub instead of doing the ".set" thingy we were doing before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41838 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-10New entry.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41810 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-10Add some notes about better flag handling.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41808 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-10It's not safe to rematerialize MOV32r0 etc. by simply cloning the originalEvan Cheng
instruction. These are implemented with xor which will modify the conditional code. They should be rematerialized as move instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41802 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07TableGen no longer emit CopyFromReg nodes for implicit results in physicalEvan Cheng
registers. The scheduler is now responsible for emitting them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41781 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07Avoid storing and reloading zeros and other constants from stack slotsDan Gohman
by flagging the associated instructions as being trivially rematerializable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41775 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07Apply feedback from previous patch.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41774 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07Add support for having different alignment for objects on call frames.Rafael Espindola
The x86-64 ABI states that objects passed on the stack have 8 byte alignment. Implement that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41768 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07Add lengthof and endof templates that hide a lot of sizeof computations.Owen Anderson
Patch by Sterling Stein! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41758 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-06Next round of APFloat changes.Dale Johannesen
Use APFloat in UpgradeParser and AsmParser. Change all references to ConstantFP to use the APFloat interface rather than double. Remove the ConstantFP double interfaces. Use APFloat functions for constant folding arithmetic and comparisons. (There are still way too many places APFloat is just a wrapper around host float/double, but we're getting there.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41747 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-06Fix a bug in X86InstrInfo::convertToThreeAddress that caused it to codegen:Evan Cheng
leal (,%rcx,8), %rcx It should be leal (,%rcx,8), %ecx git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41735 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-04Mac OS X X86-64 ABI is same as the standard.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41700 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-03Reapply r41578 with proper fixAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41680 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31Initial support for calling functions with byval arguments on x86-64Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41643 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31Align i64 and f64 at 8 byte on x86-64.Rafael Espindola
This is mandated table 3.1 at http://www.x86-64.org/documentation/abi.pdf git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41642 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-31Enhance APFloat to retain bits of NaNs (fixes oggenc).Dale Johannesen
Use APFloat interfaces for more references, mostly of ConstantFPSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-30Added support to fold X86 load / store instructions. This allow ↵Evan Cheng
rematerialized loads to be folded into their uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41599 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-30Mark load instructions with isLoad = 1.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41595 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-30Change LegalFPImmediates to use APFloat.Dale Johannesen
Add APFloat interfaces to ConstantFP, SelectionDAG. Fix integer bit in double->APFloat conversion. Convert LegalizeDAG to use APFloat interface in ConstantFPSDNode uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41587 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-29Move getX86RegNum into X86RegisterInfo and use itDuncan Sands
in the trampoline lowering. Lookup the jump and mov opcodes for the trampoline rather than hard coding them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41577 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27Add a comment about using libc memset/memcpy or generating inline code.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41502 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27call libc memcpy/memset if array size is bigger then threshold.Rafael Espindola
Coping 100MB array (after a warmup) shows that glibc 2.6.1 implementation on x86-64 (core 2) is 30% faster (from 0.270917s to 0.188079s) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41479 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-25rename isOperandValidForConstraint to LowerAsmOperandForConstraint, Chris Lattner
changing the interface to allow for future changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-24add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41359 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-23add some notes on really poor codegen.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41319 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-22Add the PCSymbol for Darwin x86 platforms.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41284 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-21Use only 1 knob to enable exceptions on Darwin :). Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41208 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-20Partial implementation of calling functions with byval arguments:Rafael Espindola
*) The needed information is propagated to the DAG *) The X86-64 backend detects it and aborts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41179 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-20add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41178 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15Move ReturnAddrIndex variable to X86MachineFunctionInfo structure. This fixedAnton Korobeynikov
hard to catch bugs with retaddr lowering git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41104 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15add a note.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41103 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-13Fix a typo pointd out by Maarten ter Huurne.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41059 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-13When x86 addresses matching exceeds its recursion limit, check toDan Gohman
see if the base register is already occupied before assuming it can be used. This fixes bogus code generation in the accompanying testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41049 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-13Fix PR1607Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41048 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11expand a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41021 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11With evan's explicit flag representation, hopefully we will finally beChris Lattner
able to 3-addressify away stuff like this: movl %ecx, %eax decl %eax git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41020 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-1164-bit SSSE3 ops that use MMX registers don't require 16-byte alignment.Bill Wendling
Make a 'memop' pattern just for them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41017 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10Use subregs to improve any_extend code generation when feasible.Christopher Lamb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41013 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10Increase efficiency of sign_extend_inreg by using subregisters for ↵Christopher Lamb
truncation. As the README suggests sign_extend_subreg is selected to (sext(trunc)). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41010 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10Edit README in light of previous LEA16 commit.Christopher Lamb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41009 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10Add 2-addr to 3-addr promotion code that allows 32-bit LEA to be used via ↵Christopher Lamb
subregisters when 16-bit LEA is disabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41007 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10propagate struct size and alignment of byval arguments to the DAGRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40986 91177308-0d34-0410-b5e6-96231b3b80d8
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