Add support for Cortex-A12.

Patch by Oliver Stannard!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195448 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 51 insertions, 2 deletions

diff --git a/lib/Target/ARM/ARM.td b/lib/Target/ARM/ARM.td
index daa3793c19..f63064eeb0 100644
--- a/lib/Target/ARM/ARM.td
+++ b/lib/Target/ARM/ARM.td
@@ -205,6 +205,15 @@ def ProcSwift   : SubtargetFeature<"swift", "ARMProcFamily", "Swift",
                                     FeatureHWDivARM, FeatureAvoidPartialCPSR,
                                     FeatureAvoidMOVsShOp,
                                     FeatureHasSlowFPVMLx, FeatureTrustZone]>;
+def ProcA12     : SubtargetFeature<"a12", "ARMProcFamily", "CortexA12",
+                                   "Cortex-A12 ARM processors",
+                                   [FeatureVMLxForwarding,
+                                    FeatureT2XtPk, FeatureVFP4,
+                                    FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureVirtualization,
+                                    FeatureTrustZone]>;
+
 
 // FIXME: It has not been determined if A15 has these features.
 def ProcA15      : SubtargetFeature<"a15", "ARMProcFamily", "CortexA15",
@@ -319,11 +328,19 @@ def : ProcessorModel<"cortex-a9-mp", CortexA9Model,
                                     [ProcA9, HasV7Ops, FeatureNEON, FeatureDB,
                                      FeatureDSPThumb2, FeatureMP,
                                      FeatureHasRAS, FeatureAClass]>;
+
+// FIXME: A12 has currently the same Schedule model as A9
+def : ProcessorModel<"cortex-a12", CortexA9Model,
+                                    [ProcA12, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSPThumb2, FeatureMP,
+                                     FeatureHasRAS, FeatureAClass]>;
+
 // FIXME: A15 has currently the same ProcessorModel as A9.
 def : ProcessorModel<"cortex-a15",   CortexA9Model,
                                     [ProcA15, HasV7Ops, FeatureNEON, FeatureDB,
                                      FeatureDSPThumb2, FeatureHasRAS,
                                      FeatureAClass]>;
+
 // FIXME: R5 has currently the same ProcessorModel as A8.
 def : ProcessorModel<"cortex-r5",   CortexA8Model,
                                     [ProcR5, HasV7Ops, FeatureDB,
diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
index 5fc9f8f460..ca5ba8541f 100644
--- a/lib/Target/ARM/ARMSubtarget.h
+++ b/lib/Target/ARM/ARMSubtarget.h
@@ -31,8 +31,8 @@ class TargetOptions;
 class ARMSubtarget : public ARMGenSubtargetInfo {
 protected:
   enum ARMProcFamilyEnum {
-    Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA15, CortexR5,
-    Swift, CortexA53, CortexA57
+    Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA12, CortexA15, 
+    CortexR5, Swift, CortexA53, CortexA57
   };
   enum ARMProcClassEnum {
     None, AClass, RClass, MClass
diff --git a/test/CodeGen/ARM/build-attributes.ll b/test/CodeGen/ARM/build-attributes.ll
index 51687fce83..8e7e25b52c 100644
--- a/test/CodeGen/ARM/build-attributes.ll
+++ b/test/CodeGen/ARM/build-attributes.ll
@@ -14,6 +14,8 @@
 ; RUN: llc < %s -mtriple=armv8-linux-gnueabi | FileCheck %s --check-prefix=V8-FPARMv8-NEON-CRYPTO
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=soft | FileCheck %s --check-prefix=CORTEX-A9-SOFT
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9 -float-abi=hard | FileCheck %s --check-prefix=CORTEX-A9-HARD
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 | FileCheck %s --check-prefix=CORTEX-A12-DEFAULT
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a12 -mattr=-vfp2 | FileCheck %s --check-prefix=CORTEX-A12-NOFPU
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a9-mp | FileCheck %s --check-prefix=CORTEX-A9-MP
 ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a15 | FileCheck %s --check-prefix=CORTEX-A15
 ; RUN: llc < %s -mtriple=thumbv6m-linux-gnueabi -mcpu=cortex-m0 | FileCheck %s --check-prefix=CORTEX-M0
@@ -238,6 +240,36 @@
 ; CORTEX-A9-MP:  .eabi_attribute 42, 1
 ; CORTEX-A9-MP:  .eabi_attribute 68, 1
 
+; CORTEX-A12-DEFAULT:  .cpu cortex-a12
+; CORTEX-A12-DEFAULT:  .eabi_attribute 6, 10
+; CORTEX-A12-DEFAULT:  .eabi_attribute 7, 65
+; CORTEX-A12-DEFAULT:  .eabi_attribute 8, 1
+; CORTEX-A12-DEFAULT:  .eabi_attribute 9, 2
+; CORTEX-A12-DEFAULT:  .fpu neon-vfpv4
+; CORTEX-A12-DEFAULT:  .eabi_attribute 20, 1
+; CORTEX-A12-DEFAULT:  .eabi_attribute 21, 1
+; CORTEX-A12-DEFAULT:  .eabi_attribute 23, 3
+; CORTEX-A12-DEFAULT:  .eabi_attribute 24, 1
+; CORTEX-A12-DEFAULT:  .eabi_attribute 25, 1
+; CORTEX-A12-DEFAULT:  .eabi_attribute 42, 1
+; CORTEX-A12-DEFAULT:  .eabi_attribute 44, 2
+; CORTEX-A12-DEFAULT:  .eabi_attribute 68, 3
+
+; CORTEX-A12-NOFPU:  .cpu cortex-a12
+; CORTEX-A12-NOFPU:  .eabi_attribute 6, 10
+; CORTEX-A12-NOFPU:  .eabi_attribute 7, 65
+; CORTEX-A12-NOFPU:  .eabi_attribute 8, 1
+; CORTEX-A12-NOFPU:  .eabi_attribute 9, 2
+; CORTEX-A12-NOFPU-NOT:  .fpu
+; CORTEX-A12-NOFPU:  .eabi_attribute 20, 1
+; CORTEX-A12-NOFPU:  .eabi_attribute 21, 1
+; CORTEX-A12-NOFPU:  .eabi_attribute 23, 3
+; CORTEX-A12-NOFPU:  .eabi_attribute 24, 1
+; CORTEX-A12-NOFPU:  .eabi_attribute 25, 1
+; CORTEX-A12-NOFPU:  .eabi_attribute 42, 1
+; CORTEX-A12-NOFPU:  .eabi_attribute 44, 2
+; CORTEX-A12-NOFPU:  .eabi_attribute 68, 3
+
 ; CORTEX-A15: .cpu cortex-a15
 ; CORTEX-A15: .eabi_attribute 6, 10
 ; CORTEX-A15: .eabi_attribute 7, 65