ARM: add arm1176j-f processor

I doubt anyone actually uses it, and I'm not even entirely convinced it exists
myself; but it is our default for "clang -arch armv6". Functionally, if it does
exist it's identical to the arm1176jz-f from LLVM's point of view (the
difference is apparently in the "Security Extensions").

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301962 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARM.td

@@ -577,6 +577,7 @@ def : Processor<"cortex-m0plus",    ARMV6Itineraries,   [ARMv6m]>;
 def : Processor<"cortex-m1",        ARMV6Itineraries,   [ARMv6m]>;
 def : Processor<"sc000",            ARMV6Itineraries,   [ARMv6m]>;
 
+def : Processor<"arm1176j-s",       ARMV6Itineraries,   [ARMv6kz]>;
 def : Processor<"arm1176jz-s",      ARMV6Itineraries,   [ARMv6kz]>;
 def : Processor<"arm1176jzf-s",     ARMV6Itineraries,   [ARMv6kz,
                                                          FeatureVFP2,

test/CodeGen/ARM/build-attributes.ll

@@ -199,7 +199,8 @@
 ; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv6-none-linux-gnueabi -mcpu=arm1136j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; ARMv6k
-; RUN: llc < %s -mtriple=armv6k-none-netbsd-gnueabi -mcpu=arm1176j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: llc < %s -mtriple=armv6k-none-netbsd-gnueabi -mcpu=arm1176j-s 2> %t | FileCheck %s --check-prefix=NO-STRICT-ALIGN
+; RUN: FileCheck %s < %t --allow-empty --check-prefix=CPU-SUPPORTED
 ; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 ; RUN: llc < %s -mtriple=armv6k-none-linux-gnueabi -mcpu=arm1176j-s | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; ARMv6m
@@ -222,6 +223,8 @@
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m33 | FileCheck %s --check-prefix=NO-STRICT-ALIGN
 ; RUN: llc < %s -mtriple=thumbv8-none-none-eabi -mcpu=cortex-m33 -mattr=+strict-align | FileCheck %s --check-prefix=STRICT-ALIGN
 
+; CPU-SUPPORTED-NOT: is not a recognized processor for this target
+
 ; XSCALE:      .eabi_attribute 6, 5
 ; XSCALE:      .eabi_attribute 8, 1
 ; XSCALE:      .eabi_attribute 9, 1