Commit Graph

139 Commits

Author SHA1 Message Date
Venkatraman Govindaraju
847b5d976d [SPARCV9]: Adjust the resultant pointer of DYNAMIC_STACKALLOC with the stack BIAS on sparcV9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196755 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-09 05:13:25 +00:00
Venkatraman Govindaraju
dc50e9af4b [Sparc]: Implement getSetCCResultType() in SparcTargetLowering so that umulo/smulo can be lowered on sparcv9 without an assertion error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196751 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-09 04:02:15 +00:00
Venkatraman Govindaraju
e0dc442801 [SparcV9]: Expand MULHU/MULHS:i64 and UMUL_LOHI/SMUL_LOHI:i64 on sparcv9.
This fixes PR18150.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196735 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-08 22:06:07 +00:00
Venkatraman Govindaraju
2fee935bba [Sparc] Emit large negative adjustments to SP/FP with sethi+xor instead of sethi+or. This generates correct code for both sparc32 and sparc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195576 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-24 20:23:25 +00:00
Venkatraman Govindaraju
cf09ce3b08 [SparcV9]: Do not emit .register directives for global registers that are clobbered by calls but not used in the function itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195574 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-24 18:41:49 +00:00
Venkatraman Govindaraju
591719e304 [SparcV9] Enable custom lowering of DYNAMIC_STACKALLOC in sparc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195573 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-24 17:41:41 +00:00
Venkatraman Govindaraju
fcd5e86396 [SparcV9] Handle i64 <-> float conversions in sparcv9 mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193957 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-03 12:28:40 +00:00
Venkatraman Govindaraju
5e45051e0e [Sparc] Expand FP_TO_UINT, UINT_TO_FP for fp128.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193947 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-03 08:00:19 +00:00
Venkatraman Govindaraju
11cecbe1a0 [SparcV9] Add ctpop instruction for i64. Also, expand ctlz, cttz and bswap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193941 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-03 05:59:07 +00:00
Roman Divacky
1d6d49fbb1 SparcV9 doesnt have rem instruction either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193789 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-31 19:22:33 +00:00
Venkatraman Govindaraju
3b73dea538 [Sparc] Disable tail call optimization for sparc64.
This patch fixes PR17506.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192294 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-09 12:50:39 +00:00
Venkatraman Govindaraju
79c5e0c5ca [Sparc] Do not emit nop after fcmp* instruction with V9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192056 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-06 07:06:44 +00:00
Venkatraman Govindaraju
20b10abf4e [Sparc] Custom lower addc/adde/subc/sube on i64 in sparc64.
This is required because i64 is a legal type but addxcc/subxcc reads icc carry bit, which are 32 bit conditional codes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192054 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-06 03:36:18 +00:00
Venkatraman Govindaraju
bb0ec9840b [Sparc] Use addxcc/subxcc for adde/sube instead of addx/subx.
addx/subx does not modify conditional codes whereas addxcc/subxx does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192053 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-06 02:11:10 +00:00
Venkatraman Govindaraju
a8147756d6 [Sparc] Use correct alignment while loading/storing fp128 values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192023 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-05 02:29:47 +00:00
Venkatraman Govindaraju
b648122c5f [Sparc] Respect hasHardQuad parameter correctly when lowering SINT_TO_FP with fp128 operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192015 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-05 00:31:41 +00:00
Venkatraman Govindaraju
1c9524b624 [Sparc] Correct the floating point conditional code mapping in GetOppositeBranchCondition().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192006 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-04 23:54:30 +00:00
Manman Ren
e267f04ef5 TBAA: update tbaa format from scalar format to struct-path aware format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191690 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-30 18:17:55 +00:00
Venkatraman Govindaraju
30ec8a3658 [Sparc] Implements exception handling in SPARC with DwarfCFI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191432 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-26 15:11:00 +00:00
Venkatraman Govindaraju
7d052f272d [Sparc] Add support for TLS in sparc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191164 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-22 06:48:52 +00:00
Venkatraman Govindaraju
ecd4965c13 [SPARC] Make functions with GLOBAL_OFFSET_TABLE access as non-leaf functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191160 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-22 01:40:24 +00:00
Venkatraman Govindaraju
c12c8d754d [Sparc] Emit .register directive to declare the use of global registers %g2, %g4, %g6 and %g7.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191158 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-22 00:42:30 +00:00
Venkatraman Govindaraju
20b5879e0e [Sparc] Fix lowering FABS on fp128 (long double) on pre-v9 targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191154 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-21 23:51:08 +00:00
Venkatraman Govindaraju
1b41835f02 [Sparc] Correctly handle call to functions with ReturnsTwice attribute.
In sparc, setjmp stores only the registers %fp, %sp, %i7 and %o7. longjmp restores
the stack, and the callee-saved registers (all local/in registers: %i0-%i7, %l0-%l7)
using the stored %fp and register windows. However, this does not guarantee that the longjmp
will restore the registers, as they were when the setjmp was called. This is because these
registers may be clobbered after returning from setjmp, but before calling longjmp.

This patch prevents the registers %i0-%i5, %l0-l7 to live across the setjmp call using the register mask.  



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190033 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-05 05:32:16 +00:00
Venkatraman Govindaraju
bf34f34642 [Sparc] Fix an assertion failure while lowering fcmp on long double.
This assertion is triggered because an integer constant is created with wrong
  type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189948 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-04 15:15:20 +00:00
Venkatraman Govindaraju
75ddb2bb34 [Sparc] Add support for soft long double (fp128).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189780 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-03 04:11:59 +00:00
Venkatraman Govindaraju
6ee0857bd7 [Sparc] Implement spill and load for long double(f128) registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189768 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-02 18:32:45 +00:00
Venkatraman Govindaraju
2f17d0facf [Sparc] Add long double (f128) instructions to sparc backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189198 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-25 18:30:06 +00:00
Venkatraman Govindaraju
5ec8afa7cf [Sparc] Added V9's extra floating point registers and their aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189195 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-25 17:03:02 +00:00
Daniel Dunbar
24ec2e5a72 [tests] Cleanup initialization of test suffixes.
- Instead of setting the suffixes in a bunch of places, just set one master
   list in the top-level config. We now only modify the suffix list in a few
   suites that have one particular unique suffix (.ml, .mc, .yaml, .td, .py).

 - Aside from removing the need for a bunch of lit.local.cfg files, this enables
   4 tests that were inadvertently being skipped (one in
   Transforms/BranchFolding, a .s file each in DebugInfo/AArch64 and
   CodeGen/PowerPC, and one in CodeGen/SI which is now failing and has been
   XFAILED).

 - This commit also fixes a bunch of config files to use config.root instead of
   older copy-pasted code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188513 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-16 00:37:11 +00:00
Andrew Trick
6ea2b9608a Allocate local registers in order for optimal coloring.
Also avoid locals evicting locals just because they want a cheaper register.

Problem: MI Sched knows exactly how many registers we have and assumes
they can be colored. In cases where we have large blocks, usually from
unrolled loops, greedy coloring fails. This is a source of
"regressions" from the MI Scheduler on x86. I noticed this issue on
x86 where we have long chains of two-address defs in the same live
range. It's easy to see this in matrix multiplication benchmarks like
IRSmk and even the unit test misched-matmul.ll.

A fundamental difference between the LLVM register allocator and
conventional graph coloring is that in our model a live range can't
discover its neighbors, it can only verify its neighbors. That's why
we initially went for greedy coloring and added eviction to deal with
the hard cases. However, for singly defined and two-address live
ranges, we can optimally color without visiting neighbors simply by
processing the live ranges in instruction order.

Other beneficial side effects:

It is much easier to understand and debug regalloc for large blocks
when the live ranges are allocated in order. Yes, global allocation is
still very confusing, but it's nice to be able to comprehend what
happened locally.

Heuristics could be added to bias register assignment based on
instruction locality (think late register pairing, banks...).

Intuituvely this will make some test cases that are on the threshold
of register pressure more stable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187139 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-25 18:35:14 +00:00
Stephen Lin
cf2ab764db Update to more CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change.
All changes were made by the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    grep -q "^; *RUN: *llc.*debug" $NAME && continue
    grep -q "^; *RUN:.*llvm-objdump" $NAME && continue
    grep -q "^; *RUN: *opt.*" $NAME && continue
    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/;\([A-Za-z0-9_-]*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC[:]* *\$/;\1\2-LABEL:\3$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
  done

This script catches a superset of the cases caught by the script associated with commit r186280. It initially found some false positives due to unusual constructs in a minority of tests; all such cases were disambiguated first in commit r186621.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186624 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-18 22:47:09 +00:00
Stephen Lin
771e0ab32a Disambiguate function names in some CodeGen tests. (Some tests were using function names that also were names of instructions and/or doing other unusual things that were making the test not amenable to otherwise scriptable pattern matching.) No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-18 22:29:15 +00:00
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