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| author | Tom Stellard <thomas.stellard@amd.com> | 2013-05-03 17:21:20 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2013-05-03 17:21:20 +0000 |
| commit | 83f0a5a5e8e132b3ce39f15ed2583ad344b88ec4 (patch) | |
| tree | 724d830066a560147a6f33911b837b5e16213171 /lib | |
| parent | 218b20a81e28ab069dd69684f1a8208ec8e1704c (diff) | |
| download | external_llvm-83f0a5a5e8e132b3ce39f15ed2583ad344b88ec4.zip external_llvm-83f0a5a5e8e132b3ce39f15ed2583ad344b88ec4.tar.gz external_llvm-83f0a5a5e8e132b3ce39f15ed2583ad344b88ec4.tar.bz2 | |
R600: Add pattern for SHA-256 Ma function
This can be optimized using the BFI_INT instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181033 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/R600/AMDGPUInstructions.td | 8 | ||||
| -rw-r--r-- | lib/Target/R600/R600Instructions.td | 3 | ||||
| -rw-r--r-- | lib/Target/R600/SIInstructions.td | 6 |
3 files changed, 17 insertions, 0 deletions
diff --git a/lib/Target/R600/AMDGPUInstructions.td b/lib/Target/R600/AMDGPUInstructions.td index 83e1359..b44d248 100644 --- a/lib/Target/R600/AMDGPUInstructions.td +++ b/lib/Target/R600/AMDGPUInstructions.td @@ -276,6 +276,14 @@ multiclass BFIPatterns <Instruction BFI_INT> { } +// SHA-256 Ma patterns + +// ((x & z) | (y & (x | z))) -> BFI_INT (XOR x, y), z, y +class SHA256MaPattern <Instruction BFI_INT, Instruction XOR> : Pat < + (or (and i32:$x, i32:$z), (and i32:$y, (or i32:$x, i32:$z))), + (BFI_INT (XOR i32:$x, i32:$y), i32:$z, i32:$y) +>; + include "R600Instructions.td" include "SIInstrInfo.td" diff --git a/lib/Target/R600/R600Instructions.td b/lib/Target/R600/R600Instructions.td index 6bae4b3..0466c18 100644 --- a/lib/Target/R600/R600Instructions.td +++ b/lib/Target/R600/R600Instructions.td @@ -1669,6 +1669,9 @@ let hasSideEffects = 1 in { def : Pat<(fp_to_uint f32:$src0), (FLT_TO_UINT_eg (TRUNC $src0))>; + // SHA-256 Patterns + def : SHA256MaPattern <BFI_INT_eg, XOR_INT>; + def EG_ExportSwz : ExportSwzInst { let Word1{19-16} = 0; // BURST_COUNT let Word1{20} = 1; // VALID_PIXEL_MODE diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td index 3ff4548..fcae109 100644 --- a/lib/Target/R600/SIInstructions.td +++ b/lib/Target/R600/SIInstructions.td @@ -1592,4 +1592,10 @@ def : Pat< (V_CMP_U_F32_e64 $src0, $src1) >; +//============================================================================// +// Miscellaneous Optimization Patterns +//============================================================================// + +def : SHA256MaPattern <V_BFI_B32, V_XOR_B32_e32>; + } // End isSI predicate |