It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPC.td b/lib/Target/PowerPC/PPC.td
new file mode 100644
index 0000000..76f8ac4
--- /dev/null
+++ b/lib/Target/PowerPC/PPC.td
@@ -0,0 +1,114 @@
+//===- PPC.td - Describe the PowerPC Target Machine --------*- tablegen -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is the top level entry point for the PowerPC target.
+//
+//===----------------------------------------------------------------------===//
+
+// Get the target-independent interfaces which we are implementing.
+//
+include "../Target.td"
+
+//===----------------------------------------------------------------------===//
+// PowerPC Subtarget features.
+//
+
+//===----------------------------------------------------------------------===//
+// CPU Directives //
+//===----------------------------------------------------------------------===//
+
+def Directive601 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_601", "">;
+def Directive602 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_602", "">;
+def Directive603 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
+def Directive604 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
+def Directive620 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
+def Directive7400: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_7400", "">;
+def Directive750 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_750", "">;
+def Directive970 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_970", "">;
+def Directive32 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_32", "">;
+def Directive64 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_64", "">;
+
+def Feature64Bit : SubtargetFeature<"64bit","Has64BitSupport", "true",
+ "Enable 64-bit instructions">;
+def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true",
+ "Enable 64-bit registers usage for ppc32 [beta]">;
+def FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true",
+ "Enable Altivec instructions">;
+def FeatureGPUL : SubtargetFeature<"gpul","IsGigaProcessor", "true",
+ "Enable GPUL instructions">;
+def FeatureFSqrt : SubtargetFeature<"fsqrt","HasFSQRT", "true",
+ "Enable the fsqrt instruction">;
+def FeatureSTFIWX : SubtargetFeature<"stfiwx","HasSTFIWX", "true",
+ "Enable the stfiwx instruction">;
+
+//===----------------------------------------------------------------------===//
+// Register File Description
+//===----------------------------------------------------------------------===//
+
+include "PPCRegisterInfo.td"
+include "PPCSchedule.td"
+include "PPCInstrInfo.td"
+
+//===----------------------------------------------------------------------===//
+// PowerPC processors supported.
+//
+
+def : Processor<"generic", G3Itineraries, [Directive32]>;
+def : Processor<"601", G3Itineraries, [Directive601]>;
+def : Processor<"602", G3Itineraries, [Directive602]>;
+def : Processor<"603", G3Itineraries, [Directive603]>;
+def : Processor<"603e", G3Itineraries, [Directive603]>;
+def : Processor<"603ev", G3Itineraries, [Directive603]>;
+def : Processor<"604", G3Itineraries, [Directive604]>;
+def : Processor<"604e", G3Itineraries, [Directive604]>;
+def : Processor<"620", G3Itineraries, [Directive620]>;
+def : Processor<"g3", G3Itineraries, [Directive7400]>;
+def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec]>;
+def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec]>;
+def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec]>;
+def : Processor<"g4+", G4PlusItineraries, [Directive750, FeatureAltivec]>;
+def : Processor<"750", G4Itineraries, [Directive750, FeatureAltivec]>;
+def : Processor<"970", G5Itineraries,
+ [Directive970, FeatureAltivec,
+ FeatureGPUL, FeatureFSqrt, FeatureSTFIWX,
+ Feature64Bit /*, Feature64BitRegs */]>;
+def : Processor<"g5", G5Itineraries,
+ [Directive970, FeatureAltivec,
+ FeatureGPUL, FeatureFSqrt, FeatureSTFIWX,
+ Feature64Bit /*, Feature64BitRegs */]>;
+def : Processor<"ppc", G3Itineraries, [Directive32]>;
+def : Processor<"ppc64", G5Itineraries,
+ [Directive64, FeatureAltivec,
+ FeatureGPUL, FeatureFSqrt, FeatureSTFIWX,
+ Feature64Bit /*, Feature64BitRegs */]>;
+
+
+//===----------------------------------------------------------------------===//
+// Calling Conventions
+//===----------------------------------------------------------------------===//
+
+include "PPCCallingConv.td"
+
+def PPCInstrInfo : InstrInfo {
+ // Define how we want to layout our TargetSpecific information field... This
+ // should be kept up-to-date with the fields in the PPCInstrInfo.h file.
+ let TSFlagsFields = ["PPC970_First",
+ "PPC970_Single",
+ "PPC970_Cracked",
+ "PPC970_Unit"];
+ let TSFlagsShifts = [0, 1, 2, 3];
+
+ let isLittleEndianEncoding = 1;
+}
+
+
+def PPC : Target {
+ // Information about the instructions.
+ let InstructionSet = PPCInstrInfo;
+}