[X86][SchedModel] Add missing scheduling model for SSE related instructions.

The patch defines new or refines existing generic scheduling classes to match
the behavior of the SSE instructions.
It also maps those scheduling classes on the related SSE instructions.

<rdar://problem/15607571>

llvm-svn: 202065

1 files changed, 115 insertions, 0 deletions

diff --git a/llvm/lib/Target/X86/X86SchedSandyBridge.td b/llvm/lib/Target/X86/X86SchedSandyBridge.td
index 3011c6d9d64..a58859aa15f 100644
--- a/llvm/lib/Target/X86/X86SchedSandyBridge.td
+++ b/llvm/lib/Target/X86/X86SchedSandyBridge.td
@@ -118,6 +118,16 @@ defm : SBWriteResPair<WriteFSqrt,  SBPort0, 15>;
 defm : SBWriteResPair<WriteCvtF2I, SBPort1, 3>;
 defm : SBWriteResPair<WriteCvtI2F, SBPort1, 4>;
 defm : SBWriteResPair<WriteCvtF2F, SBPort1, 3>;
+defm : SBWriteResPair<WriteFShuffle,  SBPort5,  1>;
+defm : SBWriteResPair<WriteFBlend,  SBPort05,  1>;
+def : WriteRes<WriteFVarBlend, [SBPort0, SBPort5]> {
+  let Latency = 2;
+  let ResourceCycles = [1, 1];
+}
+def : WriteRes<WriteFVarBlendLd, [SBPort0, SBPort5, SBPort23]> {
+  let Latency = 6;
+  let ResourceCycles = [1, 1, 1];
+}
 
 // Vector integer operations.
 defm : SBWriteResPair<WriteVecShift, SBPort05,  1>;
@@ -125,7 +135,112 @@ defm : SBWriteResPair<WriteVecLogic, SBPort015, 1>;
 defm : SBWriteResPair<WriteVecALU,   SBPort15,  1>;
 defm : SBWriteResPair<WriteVecIMul,  SBPort0,   5>;
 defm : SBWriteResPair<WriteShuffle,  SBPort15,  1>;
+defm : SBWriteResPair<WriteBlend,  SBPort15,  1>;
+def : WriteRes<WriteVarBlend, [SBPort1, SBPort5]> {
+  let Latency = 2;
+  let ResourceCycles = [1, 1];
+}
+def : WriteRes<WriteVarBlendLd, [SBPort1, SBPort5, SBPort23]> {
+  let Latency = 6;
+  let ResourceCycles = [1, 1, 1];
+}
+def : WriteRes<WriteMPSAD, [SBPort0, SBPort1, SBPort5]> {
+  let Latency = 6;
+  let ResourceCycles = [1, 1, 1];
+}
+def : WriteRes<WriteMPSADLd, [SBPort0, SBPort1, SBPort5, SBPort23]> {
+  let Latency = 6;
+  let ResourceCycles = [1, 1, 1, 1];
+}
+
+// String instructions.
+// Packed Compare Implicit Length Strings, Return Mask
+def : WriteRes<WritePCmpIStrM, [SBPort015]> {
+  let Latency = 11;
+  let ResourceCycles = [3];
+}
+def : WriteRes<WritePCmpIStrMLd, [SBPort015, SBPort23]> {
+  let Latency = 11;
+  let ResourceCycles = [3, 1];
+}
+
+// Packed Compare Explicit Length Strings, Return Mask
+def : WriteRes<WritePCmpEStrM, [SBPort015]> {
+  let Latency = 11;
+  let ResourceCycles = [8];
+}
+def : WriteRes<WritePCmpEStrMLd, [SBPort015, SBPort23]> {
+  let Latency = 11;
+  let ResourceCycles = [7, 1];
+}
+
+// Packed Compare Implicit Length Strings, Return Index
+def : WriteRes<WritePCmpIStrI, [SBPort015]> {
+  let Latency = 3;
+  let ResourceCycles = [3];
+}
+def : WriteRes<WritePCmpIStrILd, [SBPort015, SBPort23]> {
+  let Latency = 3;
+  let ResourceCycles = [3, 1];
+}
+
+// Packed Compare Explicit Length Strings, Return Index
+def : WriteRes<WritePCmpEStrI, [SBPort015]> {
+  let Latency = 4;
+  let ResourceCycles = [8];
+}
+def : WriteRes<WritePCmpEStrILd, [SBPort015, SBPort23]> {
+  let Latency = 4;
+  let ResourceCycles = [7, 1];
+}
+
+// AES Instructions.
+def : WriteRes<WriteAESDecEnc, [SBPort015]> {
+  let Latency = 8;
+  let ResourceCycles = [2];
+}
+def : WriteRes<WriteAESDecEncLd, [SBPort015, SBPort23]> {
+  let Latency = 8;
+  let ResourceCycles = [2, 1];
+}
+
+def : WriteRes<WriteAESIMC, [SBPort015]> {
+  let Latency = 8;
+  let ResourceCycles = [2];
+}
+def : WriteRes<WriteAESIMCLd, [SBPort015, SBPort23]> {
+  let Latency = 8;
+  let ResourceCycles = [2, 1];
+}
+
+def : WriteRes<WriteAESKeyGen, [SBPort015]> {
+  let Latency = 8;
+  let ResourceCycles = [11];
+}
+def : WriteRes<WriteAESKeyGenLd, [SBPort015, SBPort23]> {
+  let Latency = 8;
+  let ResourceCycles = [10, 1];
+}
+
+// Carry-less multiplication instructions.
+def : WriteRes<WriteCLMul, [SBPort015]> {
+  let Latency = 14;
+  let ResourceCycles = [18];
+}
+def : WriteRes<WriteCLMulLd, [SBPort015, SBPort23]> {
+  let Latency = 14;
+  let ResourceCycles = [17, 1];
+}
+
 
 def : WriteRes<WriteSystem,     [SBPort015]> { let Latency = 100; }
 def : WriteRes<WriteMicrocoded, [SBPort015]> { let Latency = 100; }
+def : WriteRes<WriteFence, [SBPort23, SBPort4]>;
+def : WriteRes<WriteNop, []>;
+
+// AVX2 is not supported on that architecture, but we should define the basic
+// scheduling resources anyway.
+defm : SBWriteResPair<WriteFShuffle256, SBPort0,  1>;
+defm : SBWriteResPair<WriteShuffle256, SBPort0,  1>;
+defm : SBWriteResPair<WriteVarVecShift, SBPort0,  1>;
 } // SchedModel