Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/test/CodeGen/Nios2/lit.local.cfg

@@ -0,0 +1,3 @@
+if not 'Nios2' in config.root.targets:
+    config.unsupported = True
+

external/llvm/test/CodeGen/Nios2/proc_support.ll

@@ -0,0 +1,10 @@
+; This tests that llc accepts Nios2 processors.
+
+; RUN: not not llc < %s -asm-verbose=false -march=nios2 -mcpu=nios2r1 2>&1 | FileCheck %s --check-prefix=ARCH
+; RUN: not not llc < %s -asm-verbose=false -march=nios2 -mcpu=nios2r2 2>&1 | FileCheck %s --check-prefix=ARCH
+
+; ARCH-NOT: is not a recognized processor
+
+define i32 @f(i32 %i) {
+  ret i32 %i
+}

external/llvm/test/CodeGen/Nios2/ret_generated.ll

@@ -0,0 +1,9 @@
+; This tests that llc generates 'ret' instruction in assembly output.
+
+; RUN: llc < %s -march=nios2 2>&1 | FileCheck %s --check-prefix=ARCH
+
+; ARCH: ret
+
+define i32 @f(i32 %i) {
+  ret i32 %i
+}

external/llvm/test/CodeGen/Nios2/target_support.ll

@@ -0,0 +1,11 @@
+; This tests that llc accepts Nios2 target.
+
+; RUN: not not llc < %s -asm-verbose=false -march=nios2 2>&1 | FileCheck %s --check-prefix=ARCH
+; RUN: not not llc < %s -asm-verbose=false -mtriple=nios2 2>&1 | FileCheck %s --check-prefix=TRIPLE
+
+; ARCH-NOT: invalid target
+; TRIPLE-NOT: unable to get target
+
+define i32 @f(i32 %i) {
+  ret i32 %i
+}