Fix an infinite loop where a transform in InstCombiner::visitAnd claims a construct is changed when it is not.  (See included testcase.)

Patch by Xiaoyi Guo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140072 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for TEQ.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140070 91177308-0d34-0410-b5e6-96231b3b80d8

Match X86ISD::FSETCCsd and X86ISD::FSETCCss while in AVX mode. This fix
PR10955 and PR10948.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140069 91177308-0d34-0410-b5e6-96231b3b80d8

This testcase is dead. It doesn't inline even if I add the 'alwaysinline'
attribute to the @foo function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140067 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerate configure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140065 91177308-0d34-0410-b5e6-96231b3b80d8

Rename LLVM_MULTITHREADED define and fix build without threads.

Patch by Arrowdodger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140064 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy up a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140050 91177308-0d34-0410-b5e6-96231b3b80d8

Remove FIXME. TBB/TBH are Thumb mode only instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140048 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SXTB/SXTB16/SXTH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140047 91177308-0d34-0410-b5e6-96231b3b80d8

Make changes to avoid creating nested CALLSEQ_START/END constructs, which aren't
yet legal according to comments in LegalizeDAG.cpp:227.

Memcpy nodes created for copying byval arguments are inserted before
CALLSEQ_START.

The two failing tests reported in PR10876 pass after applying this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140046 91177308-0d34-0410-b5e6-96231b3b80d8

Nope, there's another one!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140045 91177308-0d34-0410-b5e6-96231b3b80d8

Missed one instance of implicit pointer conversion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140044 91177308-0d34-0410-b5e6-96231b3b80d8

Silence -Wsign-compare warnings from GCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140043 91177308-0d34-0410-b5e6-96231b3b80d8

Try to make MSVC 2010 happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140042 91177308-0d34-0410-b5e6-96231b3b80d8

Specify an additional fixed bit in the Thumb2 SSAT encoding to prevent the decoder from emitting gibberish for this invalid encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140041 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in the bitcode reader in the handling of atomic stores.  Reported by David Meyer on llvmdev.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140040 91177308-0d34-0410-b5e6-96231b3b80d8

ARM asm parsing should handle pre-indexed writeback w/o immediate.

For example, 'ldrb r9, [sp]!' is odd, but valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140035 91177308-0d34-0410-b5e6-96231b3b80d8

Better Error Reporting

Report missing template arguments more helpfully by supplying the name
of the missing argument in the error message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140034 91177308-0d34-0410-b5e6-96231b3b80d8

X86 has asterisk-free inline asm support now.

Floating point stack inline asm works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140033 91177308-0d34-0410-b5e6-96231b3b80d8

Handle STRT (and friends) like LDRT (and friends) for decoding purposes.  Port over additional encoding tests to decoding tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140032 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SXTAB/SXTAB16/SXTAH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140029 91177308-0d34-0410-b5e6-96231b3b80d8

Add a MachO-specific "mode" to llvm-objdump, that, if enabled, gathers additional information that are only available on MachO.

- It can take FunctionStarts from a binary to find entry points more accurately.
- Symbol offsets in executables are correct now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140028 91177308-0d34-0410-b5e6-96231b3b80d8

MCInstrAnalysis: Don't crash on instructions with no operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140027 91177308-0d34-0410-b5e6-96231b3b80d8

[indvars] Fix PR10946: SCEV cannot handle Vector IVs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140026 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140025 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SUB(register).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140024 91177308-0d34-0410-b5e6-96231b3b80d8

Added regression test for bug #10869.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140012 91177308-0d34-0410-b5e6-96231b3b80d8

Add Win32 support to llvm::llvm_execute_on_thread(). Thanks to Aaron Ballman!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140011 91177308-0d34-0410-b5e6-96231b3b80d8

Claimed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140010 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typos in my prev commit, found by Tobi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140003 91177308-0d34-0410-b5e6-96231b3b80d8

setOperationAction should be done on the return value of the type, not the operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140001 91177308-0d34-0410-b5e6-96231b3b80d8

Remove obsolete .pod files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140000 91177308-0d34-0410-b5e6-96231b3b80d8

Fix up the formating and change llvm-gcc to clang.

Note that this example doesn't work anymore!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139999 91177308-0d34-0410-b5e6-96231b3b80d8

Remove mention of llvm-gcc/llvm-g++ from doc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139998 91177308-0d34-0410-b5e6-96231b3b80d8

When promoting integer vectors we often create ext-loads. This patch adds a
dag-combine optimization to implement the ext-load efficiently (using shuffles).

For example the type <4 x i8> is stored in memory as i32, but it needs to
find its way into a <4 x i32> register. Previously we scalarized the memory
access, now we use shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139995 91177308-0d34-0410-b5e6-96231b3b80d8

white space cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139994 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo by changing Lower256IntVETCC to Lower256IntVSETCC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139993 91177308-0d34-0410-b5e6-96231b3b80d8

Apply Duncan's test fix from r139986 to the avx version of that test too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139992 91177308-0d34-0410-b5e6-96231b3b80d8

Synthesize x86 max/min instructions also for vectors (i.e. produce
maxps and maxpd).  This broke the sse41-blend.ll testcase by causing
maxpd to be produced rather than a cmp+blend pair, which is the reason
I tweaked it.  Gives a small speedup on doduc with dragonegg when the
GCC vectorizer is used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139986 91177308-0d34-0410-b5e6-96231b3b80d8

Describe more AVX 128-bit convert instructions without patterns to have
mayLoad = 1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139973 91177308-0d34-0410-b5e6-96231b3b80d8

Bitfield mask instructions are unpredictable if the encoded LSB is higher than the encoded MSB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139972 91177308-0d34-0410-b5e6-96231b3b80d8

Add a testcase for another corner-case decoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139970 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bitfield decoding based on Eli's feedback.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139969 91177308-0d34-0410-b5e6-96231b3b80d8

Add ImmutableMapRef and ImmutableSetRef, which consolidate Immutable[Map,Set] and its Factory.  This may eventually replace Immtuable[Map,Set].

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139967 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SUB(immediate).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139966 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 pre-indexed loads/stores use the restricted GPR set for Rt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139965 91177308-0d34-0410-b5e6-96231b3b80d8

Fix disassembly of Thumb2 BFI instructions with bit range of [0, 32).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139964 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STRT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139963 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for LDRHT/STRHT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139962 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STREX/STREXB/STREXH/STREXD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139961 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STRD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139960 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify comment. There's no Thumb LDRD(register) encoding. That's ARM only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139959 91177308-0d34-0410-b5e6-96231b3b80d8

Add fixed bits to correctly distinguish Thumb2 SSAT/SSAT16's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139958 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STRBT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139957 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STRH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139956 91177308-0d34-0410-b5e6-96231b3b80d8

Remove test of undocumented format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139955 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STRB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139954 91177308-0d34-0410-b5e6-96231b3b80d8

Add mayLoad attribute to AVX convert instructions, since non of them
are declared with load patterns. This fix the crash in PR10941. No testcases,
since a fold is triggered and then converted back to the register form
afterwards.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139953 91177308-0d34-0410-b5e6-96231b3b80d8

Shuffle a few more thumb2 tests to match the comment headings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139952 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 tests for STR(literal), STR(register) and STR pre/post indexed immediate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139951 91177308-0d34-0410-b5e6-96231b3b80d8

Shuffle a few tests around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139950 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STR.

More addressing mode encoding bits. Handle pre increment for STR/STRB/STRH
and STR(register).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139949 91177308-0d34-0410-b5e6-96231b3b80d8

Add -rfunc and -rglob options to llvm-extract to support regular
expression matching.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139945 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy up. 80 columns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139944 91177308-0d34-0410-b5e6-96231b3b80d8

Fix disassembly of Thumb2 LDRSH with a #-0 offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139943 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STR(immediate).

Add aliases for STRB/STRH while there. Tests forthcoming for those.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139942 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STMDB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139940 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR10884.

This PR basically reports a problem where a crash in generated code
happened due to %rbp being clobbered:

  pushq %rbp
  movq  %rsp, %rbp
  ....
  vmovmskps %ymm12, %ebp
  ....
  movq  %rbp, %rsp
  popq  %rbp
  ret

Since Eric's r123367 commit, the default stack alignment for x86 32-bit
has changed to be 16-bytes. Since then, the MaxStackAlignmentHeuristicPass
hasn't been really used, but with AVX it becomes useful again, since per
ABI compliance we don't always align the stack to 256-bit, but only when
there are 256-bit incoming arguments.

ReserveFP was only used by this pass, but there's no RA target hook that
uses getReserveFP() to check for the presence of FP (since nothing was
triggering the pass to run, the uses of getReserveFP() were removed
through time without being noticed). Change this pass to use
setForceFramePointer, which is properly called by MachineFunction
hasFP method.

The testcase is very big and dependent on RA, not sure if it's worth
adding to test/CodeGen/X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139939 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for STMIA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139938 91177308-0d34-0410-b5e6-96231b3b80d8

Move the AC_PROG_CC checks earlier in the configure file. The lateness
of the original check meant that configure was caching the default
CC check and using that instead of the result of AC_PROG_CC in both
configure checks and during compilation.

This wasn't affecting C++ so it was hard to notice.

Regenerate configure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139937 91177308-0d34-0410-b5e6-96231b3b80d8

Migrate this to use clang by default as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139936 91177308-0d34-0410-b5e6-96231b3b80d8

We now look for clang, then llvm-gcc, then gcc as our compiler. We don't need
this anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139935 91177308-0d34-0410-b5e6-96231b3b80d8

Have the llvm configure process look for clang, then llvm-gcc, and then gcc
on all platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139934 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SSUB16/SSUB8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139931 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SSAX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139929 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a minor bug in fs::create_directories. Patch by Albert Wong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139928 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SSAT16.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139927 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SSAT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139926 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SRS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139925 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMUSD/SMUSDX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139923 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMULWB/SMULWT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139922 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139921 91177308-0d34-0410-b5e6-96231b3b80d8

Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139919 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMULBB/SMULBT/SMULTB/SMULTT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139918 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMUAD'dib.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139917 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMUL/SMMULR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139916 91177308-0d34-0410-b5e6-96231b3b80d8

Port over more Thumb2 assembly tests to disassembly tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139915 91177308-0d34-0410-b5e6-96231b3b80d8

Port over more Thumb2 assembly tests to disassembly tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139912 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMLS/SMMLSR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139911 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMMLA/SMMLAR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139910 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMLSLD/SMLSLDX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139909 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMLSD/SMLSDX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139908 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMLAWB/SMLAWT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139907 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMLALD/SMLALDX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139906 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMLALBB/SMLALBT/SMLALTB/SMLALTT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139905 91177308-0d34-0410-b5e6-96231b3b80d8

Kill some dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139904 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy up a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139903 91177308-0d34-0410-b5e6-96231b3b80d8

Thumb2 assembly parsing and encoding for SMLAL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139902 91177308-0d34-0410-b5e6-96231b3b80d8

Test case trial and error. Not sure the proper way to check MBB names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139900 91177308-0d34-0410-b5e6-96231b3b80d8

Reduced a stronger test case for coalescer bug PR10920.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139898 91177308-0d34-0410-b5e6-96231b3b80d8