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2010-10-27SelectionDAG shuffle nodes do not allow operands with different numbers ofBob Wilson
elements than the result vector type. So, when an instruction like: %8 = shufflevector <2 x float> %4, <2 x float> %7, <4 x i32> <i32 1, i32 0, i32 3, i32 2> is translated to a DAG, each operand is changed to a concat_vectors node that appends 2 undef elements. That is: shuffle [a,b], [c,d] is changed to: shuffle [a,b,u,u], [c,d,u,u] That's probably the right thing for x86 but for NEON, we'd much rather have: shuffle [a,b,c,d], undef Teach the DAG combiner how to do that transformation for ARM. Radar 8597007. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26FileCheck'izeJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Change v64 datalayout in SPU.Kalle Raiskila
The SPU ABI does not mention v64, and all examples in C suggest v128 are treated similarily to arrays, we use array alignment for v64 too. This makes the alignment of e.g. [2 x <2 x i32>] behave "intuitively" and similar to as if the elements were e.g. i32s. This also makes an "unaligned store" test to be aligned, with different (but functionally equivalent) code generated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117360 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26When the "true" and "false" blocks of a diamond if-conversion are the same,Bob Wilson
do not double-count the duplicate instructions by counting once from the beginning and again from the end. Keep track of where the duplicates from the beginning ended and don't go past that point when counting duplicates at the end. Radar 8589805. This change causes one of the MC/ARM/simple-fp-encoding tests to produce different (better!) code without the vmovne instruction being tested. I changed the test to produce vmovne and vmoveq instructions but moving between register files in the opposite direction. That's not quite the same but predicated versions of those instructions weren't being tested before, so at least the test coverage is not any worse, just different. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117333 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-25An stdcall function calling a non-stdcall functionDale Johannesen
cannot use tailcall. PR 8461. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-25Add support for emitting ARM file attributes.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117275 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-23X86: Emit _fltused instead of __fltused on Windows x64.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22tidy upJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117185 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22Remove duplicate test.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22tidy up.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117157 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22FileCheck-ize a few tests.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Recommit 116986 with capitalization typo fixed.Wesley Peck
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116993 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21putback r116983 and fix simple-fp-encoding.ll testsAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116992 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Reverting the commit 116986. It was breaking the build on llvm-x86_64-linux ↵Wesley Peck
though it compiles on OS X. I'll ensure that it builds on a linux machine before committing again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116991 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Revert r116983, which is breaking all the buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Major update of the MicroBlaze backend. The new features are:Wesley Peck
1. A delay slot filler that searches for valid instructions to fill the delay slot with. Previously NOPs would always be inserted into delay slots. 2. Support for MC based instruction printer added. 3. Support for MC based machine code generation and ELF file generation. ELF file generation does not yet completely work as much of the ELF support infrastructure is still x86/x86-64 specific. 4. General clean up of the MBlaze backend code. Much of the tablegen code has been cleanup and simplified. Bug Fixes: 1. Removed duplicate periods from subtarget feature descriptions. 2. Many of the instructions had bad machine code information in the tablegen files. Much of this has been fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116986 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Add missing scheduling itineraries for transfers between core registers and ↵Evan Cheng
VFP registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116983 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20More accurate estimate / tracking of register pressure.Evan Cheng
- Initial register pressure in the loop should be all the live defs into the loop. Not just those from loop preheader which is often empty. - When an instruction is hoisted, update register pressure from loop preheader to the original BB. - Treat only use of a virtual register as kill since the code is still SSA. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Fix crash introduced in 116852. 8573915.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116955 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Enable using vdup for vector constants which are splat ofDale Johannesen
integers by default, and remove the controlling flag, now that LICM will hoist such vdup's. 8003375. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Re-enable register pressure aware machine licm with fixes. Hoist() may haveEvan Cheng
erased the instruction during LICM so UpdateRegPressureAfter() should not reference it afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Revert r116781 "- Add a hook for target to determine whether an instruction defDaniel Dunbar
is", which breaks some nightly tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Add test case mov.ll for PTX device functionChe-Liang Chiou
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116806 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19- Add a hook for target to determine whether an instruction def isEvan Cheng
"long latency" enough to hoist even if it may increase spilling. Reloading a value from spill slot is often cheaper than performing an expensive computation in the loop. For X86, that means machine LICM will hoist SQRT, DIV, etc. ARM will be somewhat aggressive with VFP and NEON instructions. - Enable register pressure aware machine LICM by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Support alignment for NEON vld-lane and vst-lane instructions.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18Revert r116220 - thus turning arm fast isel back on by default.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18Improve lowering of sext to i128 on SPU.Kalle Raiskila
The old algorithm inserted a 'rotqmbyi' instruction which was both redundant and wrong - it made shufb select bytes from the wrong end of the input quad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-16X86-Windows: Emit an undefined global __fltused symbol when targeting WindowsMichael J. Spencer
if any floating point arguments are passed to an external function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15ARM instructions that are both predicated and set the condition codesBob Wilson
have been printed with the "S" modifier after the predicate. With ARM's unified syntax, they are supposed to go in the other order. We fixed this for Thumb when we switched to unified syntax but missed changing it for ARM. Apparently we don't generate these instructions often because no one noticed until now. Thanks to Bill Wendling for the testcase! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Refactor the MOVsr[al]_flag and RRX pseudo-instructions to really be pseudosJim Grosbach
and let the ARMExpandPseudoInsts pass fix them up into the real (MOVs) instruction form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Tweak the ARM backend to use the RRX mnemonic instead of the 'mov a, b, rrx'Jim Grosbach
pseudonym. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116512 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-13Fix another case where we were preferring instructions with largeRafael Espindola
immediates instead of 8 bits ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-13Fix PR8365 by adding a more specialized Pat that checks if an 'and' withRafael Espindola
8 bit constants can be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-12FileCheckize this in a hope to quiet a valgrind warning on grep.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-11PR8297Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116223 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-11PowerPC varargs functions store live-in registers on the stack. Make sure we useJakob Stoklund Olesen
virtual registers for those stores since RegAllocFast requires that each live physreg only be used once. This fixes PR8357. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-11Found a bug turning this on by default. Disable again for now.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116220 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-11Remove now non-existent option.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-11Fixes bug 8297: i386 cmpxchg8b, missing MachineMemOperandAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116214 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-11Per discussion with Sanjiv, remove the PIC16 target from mainline. When/ifChris Lattner
it comes back, it will be largely a rewrite, so keeping the old codebase in tree isn't helping anyone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116190 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-10X86: MinGW should always use libgcc on Windows.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116177 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-10X86: Call _alldiv instead of __divdi3 on Windows (excluding cygwin).Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116174 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-10force a triple, varargs isn't supported with the SVR4 ABI the buildbot tells me.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-10fix the expansion of va_arg instruction on PPC to know the arg Chris Lattner
alignment for PPC32/64, avoiding some masking operations. llvm-gcc expands vaarg inline instead of using the instruction so it has never hit this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-09Correct some load / store instruction itinerary mistakes:Evan Cheng
1. Cortex-A8 load / store multiplies can only issue on ALU0. 2. Eliminate A8_Issue, A8_LSPipe will correctly limit the load / store issues. 3. Correctly model all vld1 and vld2 variants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116134 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-09Simplify test and move into a generic "crash" ll file.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116130 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-09Check to make sure that the iterator isn't at the beginning of the basic blockBill Wendling
before decrementing. <rdar://problem/8529919> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116126 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-08Recommit 116056, now with the missing file...Cameron Esfahani
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116083 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-08reverting 116056: win64_params.ll may need to be conditionalized?Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116063 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-08Small patch to restore home register stack space allocation for the Win64 ↵Cameron Esfahani
case. Add test case. This code eventually needs to be tighter, since it's always allocating it, even in leaf routines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116056 91177308-0d34-0410-b5e6-96231b3b80d8