Commit Graph

106 Commits

Author SHA1 Message Date
Stephen Lin
8b2b8a1835 Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
This update was done with the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc.*debug" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP
      done
      sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
      sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
      sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
      sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00
Stephen Lin
b4dc0233c9 Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.
This was done with the following sed invocation to catch label lines demarking function boundaries:
    sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll
which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186258 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-13 20:38:47 +00:00
Benjamin Kramer
4eed756153 Switch spill weights from a basic loop depth estimation to BlockFrequencyInfo.
The main advantages here are way better heuristics, taking into account not
just loop depth but also __builtin_expect and other static heuristics and will
eventually learn how to use profile info. Most of the work in this patch is
pushing the MachineBlockFrequencyInfo analysis into the right places.

This is good for a 5% speedup on zlib's deflate (x86_64), there were some very
unfortunate spilling decisions in its hottest loop in longest_match(). Other
benchmarks I tried were mostly neutral.

This changes register allocation in subtle ways, update the tests for it.
2012-02-20-MachineCPBug.ll was deleted as it's very fragile and the instruction
it looked for was gone already (but the FileCheck pattern picked up unrelated
stuff).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184105 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-17 19:00:36 +00:00
Venkatraman Govindaraju
1799921672 [Sparc] Delete FPMover Pass and remove Fp* Pseudo-instructions from Sparc backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183613 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-08 15:32:59 +00:00
Jakob Stoklund Olesen
7de1d327f1 Add missing zextloadi1 to i64 patterns. PR16721.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183587 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-07 22:55:05 +00:00
Roman Divacky
6ca5fd3f30 Fix a typo in asm string of BP* family of instructions. With this fix
I am able to compile/assemble/link/run /bin/echo from FreeBSD.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183537 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-07 17:46:57 +00:00
Venkatraman Govindaraju
01021a8b93 [Sparc]: Use cmp instruction instead of subcc to compare integers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183463 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-07 00:03:36 +00:00
Venkatraman Govindaraju
e7cbb792c9 Sparc: Add support for indirect branch and blockaddress in Sparc backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183094 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-03 05:58:33 +00:00
Venkatraman Govindaraju
85cc972a06 Sparc: When storing 0, use %g0 directly in the store instruction instead of
using two instructions (sethi and store).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183090 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-03 00:21:54 +00:00
Venkatraman Govindaraju
65ca7aa57d Sparc: Combine add/or/sethi instruction with restore if possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183088 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-02 21:48:17 +00:00
Venkatraman Govindaraju
dd48226b15 Sparc: Perform leaf procedure optimization by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183083 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-02 02:24:27 +00:00
Venkatraman Govindaraju
a0b34d6c4a Sparc: Mark functions calling llvm.vastart and llvm.returnaddress intrinsics as non-leaf functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183079 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-01 20:42:48 +00:00
Venkatraman Govindaraju
72ad17c48c [Sparc] Generate correct code for leaf functions with stack objects
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183067 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-01 04:51:18 +00:00
Venkatraman Govindaraju
5300869256 [Sparc] Add support for leaf functions in sparc backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182822 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-29 04:46:31 +00:00
Jakob Stoklund Olesen
89f530ebbf Also expand 64-bit bitcasts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182229 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 01:01:43 +00:00
Jakob Stoklund Olesen
5e5b78ca36 Implement spill and fill of I64Regs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182228 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 00:53:25 +00:00
Jakob Stoklund Olesen
900622e099 Mark i64 SETCC as expand so it is turned into a SELECT_CC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182227 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 00:28:36 +00:00
Jakob Stoklund Olesen
634123e98d Don't use %g0 to materialize 0 directly.
The wired physreg doesn't work on tied operands like on MOVXCC.

Add a README note to fix this later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182225 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 21:47:13 +00:00
Jakob Stoklund Olesen
60abcb786e Select i64 values with %icc conditions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182224 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:38:21 +00:00
Jakob Stoklund Olesen
51d46c36bc Add floating point selects on %xcc predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182222 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:33:11 +00:00
Jakob Stoklund Olesen
89db6732fb Implement SPselectfcc for i64 operands.
Also clean up the arguments to all the MOVCC instructions so the
operands always are (true-val, false-val, cond-code).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182221 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:20:54 +00:00
Venkatraman Govindaraju
21886a495a [Sparc] Rearrange integer registers' allocation order so that register allocator will use I and G registers before using L and O registers.
Also, enable registers %g2-%g4 to be used in application and %g5 in 64 bit mode.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182219 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:07:20 +00:00
Jakob Stoklund Olesen
00ce0f6512 Handle i64 FrameIndex nodes in SPARC v9 mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182216 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 19:14:24 +00:00
Venkatraman Govindaraju
a65d33760b [Sparc] Implements hasReservedCallFrame and hasFP.
This is to generate correct framesetup code when the function
 has variable sized allocas.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182108 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-17 15:14:34 +00:00
Venkatraman Govindaraju
d6b4caf291 [Sparc] Prevent instructions that defines or uses %o7 to be in call's delay slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182063 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-16 23:53:29 +00:00
Jakob Stoklund Olesen
bc3db03bf0 Recognize sparc64 as an alias for sparcv9 triples.
Patch by Brad Smith!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181808 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-14 17:47:27 +00:00
Arnaud A. de Grandmaison
d9e70873f3 Cleanup: test source files do not need to be executable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180003 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-22 08:02:43 +00:00
Jakob Stoklund Olesen
ddb14ce76c Passing arguments to varags functions under the SPARC v9 ABI.
Arguments after the fixed arguments never use the floating point
registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179987 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-21 21:36:49 +00:00
Jakob Stoklund Olesen
2c6b5a8d33 Fix the SETHIimm pattern for 64-bit code.
Don't ignore the high 32 bits of the immediate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179985 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-21 21:18:03 +00:00
Jakob Stoklund Olesen
da8768b2dd Compile varargs functions for SPARCv9.
With a little help from the frontend, it looks like the standard va_*
intrinsics can do the job.

Also clean up an old bitcast hack in LowerVAARG that dealt with
unaligned double loads. Load SDNodes can specify an alignment now.

Still missing: Calling varargs functions with float arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179961 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-20 22:49:16 +00:00
Jakob Stoklund Olesen
ad36608499 Add 64-bit multiply and divide instructions for SPARC v9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179582 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16 02:57:02 +00:00
Jakob Stoklund Olesen
d9f88da7b3 Use i32 for all SPARC shift amounts, even in 64-bit mode.
Test case by llvm-stress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179477 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14 05:48:50 +00:00
Jakob Stoklund Olesen
618eda7a60 Add support for the abs64 SPARC v9 code model.
For when 16 TB just isn't enough.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179474 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14 05:10:36 +00:00
Jakob Stoklund Olesen
87ce01739b Add support for the SPARC v9 abs44 code model.
This is the default model for non-PIC 64-bit code. It supports
text+data+bss linked anywhere in the low 16 TB of the address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179473 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14 04:57:51 +00:00
Jakob Stoklund Olesen
2693210656 Also put target flags on SPARC constant pool references.
Constant pool entries are accessed exactly the same way as global
variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179471 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14 04:35:16 +00:00
Jakob Stoklund Olesen
ef596e1a80 Fix patterns for 64-bit pointers.
This fixes the pic32 code model for SPARC v9.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179469 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14 01:53:23 +00:00
Jakob Stoklund Olesen
41d59c6130 Define SPARC code models.
Currently, only abs32 and pic32 are implemented. Add a test case for
abs32 with 64-bit code. 64-bit PIC code is currently broken.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179463 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-13 19:02:23 +00:00
Jakob Stoklund Olesen
6ed9284c2b Compute correct frame sizes for SPARC v9 64-bit frames.
The save area is twice as big and there is no struct return slot. The
stack pointer is always 16-byte aligned (after adding the bias).

Also eliminate the stack adjustment instructions around calls when the
function has a reserved stack frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179083 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 04:37:47 +00:00
Jakob Stoklund Olesen
18fdb398ea Implement LowerCall_64 for the SPARC v9 64-bit ABI.
There is still no support for byval arguments (which I don't think are
needed) and varargs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178993 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 19:10:57 +00:00
Jakob Stoklund Olesen
53d4bcf35e Implement LowerReturn_64 for SPARC v9.
Integer return values are sign or zero extended by the callee, and
structs up to 32 bytes in size can be returned in registers.

The CC_Sparc64 CallingConv definition is shared between
LowerFormalArguments_64 and LowerReturn_64. Function arguments and
return values are passed in the same registers.

The inreg flag is also used for return values. This is required to handle
C functions returning structs containing floats and ints:

  struct ifp {
    int i;
    float f;
  };

  struct ifp f(void);

LLVM IR:

  define inreg { i32, float } @f() {
     ...
     ret { i32, float } %retval
  }

The ABI requires that %retval.i is returned in the high bits of %i0
while %retval.f goes in %f1.

Without the inreg return value attribute, %retval.i would go in %i0 and
%retval.f would go in %f3 which is a more efficient way of returning
%multiple values, but it is not ABI compliant for returning C structs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178966 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 23:57:33 +00:00
Jakob Stoklund Olesen
2b9355f2d9 SPARC v9 stack pointer bias.
64-bit SPARC v9 processes use biased stack and frame pointers, so the
current function's stack frame is located at %sp+BIAS .. %fp+BIAS where
BIAS = 2047.

This makes more local variables directly accessible via [%fp+simm13]
addressing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178965 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 21:38:57 +00:00
Jakob Stoklund Olesen
1f25fe5023 Complete formal arguments for the SPARC v9 64-bit ABI.
All arguments are formally assigned to stack positions and then promoted
to floating point and integer registers. Since there are more floating
point registers than integer registers, this can cause situations where
floating point arguments are assigned to registers after integer
arguments that where assigned to the stack.

Use the inreg flag to indicate 32-bit fragments of structs containing
both float and int members.

The three-way shadowing between stack, integer, and floating point
registers requires custom argument lowering. The good news is that
return values are passed in the exact same way, and we can share the
code.

Still missing:

 - Update LowerReturn to handle structs returned in registers.
 - LowerCall.
 - Variadic functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178958 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 18:32:12 +00:00
Jakob Stoklund Olesen
0e16488442 Add SPARC v9 support for select on 64-bit compares.
This requires v9 cmov instructions using the %xcc flags instead of the
%icc flags.

Still missing:
- Select floats on %xcc flags.
- Select i64 on %fcc flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178737 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04 03:08:00 +00:00
Jakob Stoklund Olesen
8534e9998c Add 64-bit compare + branch for SPARC v9.
The same compare instruction is used for 32-bit and 64-bit compares. It
sets two different sets of flags: icc and xcc.

This patch adds a conditional branch instruction using the xcc flags for
64-bit compares.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 04:41:44 +00:00
Jakob Stoklund Olesen
61ed5ddefe Add 64-bit load and store instructions.
There is only a few new instructions, the rest is handled with patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178528 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02 04:09:28 +00:00
Jakob Stoklund Olesen
73c5f80ec9 Basic 64-bit ALU operations.
SPARC v9 extends all ALU instructions to 64 bits, so we simply need to
add patterns to use them for both i32 and i64 values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178527 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02 04:09:23 +00:00
Jakob Stoklund Olesen
39e75544dc Materialize 64-bit immediates.
The last resort pattern produces 6 instructions, and there are still
opportunities for materializing some immediates in fewer instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178526 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02 04:09:17 +00:00
Jakob Stoklund Olesen
c3ff3f42ee Add 64-bit shift instructions.
SPARC v9 defines new 64-bit shift instructions. The 32-bit shift right
instructions are still usable as zero and sign extensions.

This adds new F3_Sr and F3_Si instruction formats that probably should
be used for the 32-bit shifts as well. They don't really encode an
simm13 field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178525 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02 04:09:12 +00:00
Jakob Stoklund Olesen
f37812e906 Add support for 64-bit calling convention.
This is far from complete, but it is enough to make it possible to write
test cases using i64 arguments.

Missing features:
- Floating point arguments.
- Receiving arguments on the stack.
- Calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178523 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02 04:09:02 +00:00
David Blaikie
4388d58ff4 Remove unnecessary leading comment characters in lit-only file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177327 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18 22:08:16 +00:00