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| author | Tom Stellard <thomas.stellard@amd.com> | 2013-07-12 18:15:02 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2013-07-12 18:15:02 +0000 |
| commit | 54453c11b429a4f90f64bd83e113c69008cbd9ed (patch) | |
| tree | d526ce6a01713a4f2febd683829137ff604ba299 /lib | |
| parent | 68e132866236f5d59271d2c7ffb77a9c8e743752 (diff) | |
| download | external_llvm-54453c11b429a4f90f64bd83e113c69008cbd9ed.zip external_llvm-54453c11b429a4f90f64bd83e113c69008cbd9ed.tar.gz external_llvm-54453c11b429a4f90f64bd83e113c69008cbd9ed.tar.bz2 | |
R600/SI: SI support for 64bit ConstantFP
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186178 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/R600/SIInstrInfo.td | 12 | ||||
| -rw-r--r-- | lib/Target/R600/SIInstructions.td | 7 |
2 files changed, 19 insertions, 0 deletions
diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td index 655a8b1..067a34b 100644 --- a/lib/Target/R600/SIInstrInfo.td +++ b/lib/Target/R600/SIInstrInfo.td @@ -21,11 +21,23 @@ def LO32 : SDNodeXForm<imm, [{ return CurDAG->getTargetConstant(N->getZExtValue() & 0xffffffff, MVT::i32); }]>; +def LO32f : SDNodeXForm<fpimm, [{ + uint64_t val = N->getValueAPF().bitcastToAPInt().getZExtValue() & 0xffffffff; + float *fval = reinterpret_cast<float *>(&val); + return CurDAG->getTargetConstantFP(*fval, MVT::f32); +}]>; + // Transformation function, extract the upper 32bit of a 64bit immediate def HI32 : SDNodeXForm<imm, [{ return CurDAG->getTargetConstant(N->getZExtValue() >> 32, MVT::i32); }]>; +def HI32f : SDNodeXForm<fpimm, [{ + uint64_t val = N->getValueAPF().bitcastToAPInt().getZExtValue() >> 32; + float *fval = reinterpret_cast<float *>(&val); + return CurDAG->getTargetConstantFP(*fval, MVT::f32); +}]>; + def IMM8bitDWORD : ImmLeaf < i32, [{ return (Imm & ~0x3FC) == 0; diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td index 8436b67..3deaa2e 100644 --- a/lib/Target/R600/SIInstructions.td +++ b/lib/Target/R600/SIInstructions.td @@ -1509,6 +1509,13 @@ def : Pat < (S_MOV_B32 (i32 (HI32 imm:$imm))), sub1) >; +def : Pat < + (f64 fpimm:$imm), + (INSERT_SUBREG (INSERT_SUBREG (f64 (IMPLICIT_DEF)), + (V_MOV_B32_e32 (f32 (LO32f fpimm:$imm))), sub0), + (V_MOV_B32_e32 (f32 (HI32f fpimm:$imm))), sub1) +>; + /********** ===================== **********/ /********** Interpolation Paterns **********/ /********** ===================== **********/ |