[Nios2] Remove Nios2 backend

As mentioned here http://lists.llvm.org/pipermail/llvm-dev/2019-January/129121.html This backend is incomplete and has not been maintained in several months.

Differential Revision: https://reviews.llvm.org/D56691

llvm-svn: 351231

7 files changed, 0 insertions, 105 deletions

diff --git a/llvm/test/CodeGen/Nios2/add-sub.ll b/llvm/test/CodeGen/Nios2/add-sub.ll
deleted file mode 100644
index 7c9a2896ed9..00000000000
--- a/llvm/test/CodeGen/Nios2/add-sub.ll
+++ /dev/null
@@ -1,19 +0,0 @@
-; RUN: llc < %s -march=nios2 2>&1 | FileCheck %s
-; RUN: llc < %s -march=nios2 -target-abi=nios2r2 2>&1 | FileCheck %s
-
-define i32 @add_reg(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: add_reg:
-; CHECK:   add r2, r4, r5
-  %c = add i32 %a, %b
-  ret i32 %c
-}
-
-define i32 @sub_reg(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: sub_reg:
-; CHECK:   sub r2, r4, r5
-  %c = sub i32 %a, %b
-  ret i32 %c
-}
-
diff --git a/llvm/test/CodeGen/Nios2/lit.local.cfg b/llvm/test/CodeGen/Nios2/lit.local.cfg
deleted file mode 100644
index 84c8b039391..00000000000
--- a/llvm/test/CodeGen/Nios2/lit.local.cfg
+++ /dev/null
@@ -1,3 +0,0 @@
-if not 'Nios2' in config.root.targets:
-    config.unsupported = True
-
diff --git a/llvm/test/CodeGen/Nios2/mul-div.ll b/llvm/test/CodeGen/Nios2/mul-div.ll
deleted file mode 100644
index 8327823cf14..00000000000
--- a/llvm/test/CodeGen/Nios2/mul-div.ll
+++ /dev/null
@@ -1,27 +0,0 @@
-; RUN: llc < %s -march=nios2 2>&1 | FileCheck %s
-; RUN: llc < %s -march=nios2 -target-abi=nios2r2 2>&1 | FileCheck %s
-
-define i32 @mul_reg(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: mul_reg:
-; CHECK:   mul r2, r4, r5
-  %c = mul i32 %a, %b
-  ret i32 %c
-}
-
-define i32 @div_signed(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: div_signed:
-; CHECK:   div r2, r4, r5
-  %c = sdiv i32 %a, %b
-  ret i32 %c
-}
-
-define i32 @div_unsigned(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: div_unsigned:
-; CHECK:   divu r2, r4, r5
-  %c = udiv i32 %a, %b
-  ret i32 %c
-}
-
diff --git a/llvm/test/CodeGen/Nios2/proc_support.ll b/llvm/test/CodeGen/Nios2/proc_support.ll
deleted file mode 100644
index c83c105724a..00000000000
--- a/llvm/test/CodeGen/Nios2/proc_support.ll
+++ /dev/null
@@ -1,10 +0,0 @@
-; 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
-}
diff --git a/llvm/test/CodeGen/Nios2/ret_generated.ll b/llvm/test/CodeGen/Nios2/ret_generated.ll
deleted file mode 100644
index 986c65751df..00000000000
--- a/llvm/test/CodeGen/Nios2/ret_generated.ll
+++ /dev/null
@@ -1,9 +0,0 @@
-; 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
-}
diff --git a/llvm/test/CodeGen/Nios2/shift-rotate.ll b/llvm/test/CodeGen/Nios2/shift-rotate.ll
deleted file mode 100644
index d3084b5fb59..00000000000
--- a/llvm/test/CodeGen/Nios2/shift-rotate.ll
+++ /dev/null
@@ -1,26 +0,0 @@
-; RUN: llc < %s -march=nios2 2>&1 | FileCheck %s
-; RUN: llc < %s -march=nios2 -target-abi=nios2r2 2>&1 | FileCheck %s
-
-define i32 @sll_reg(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: sll_reg:
-; CHECK:   sll r2, r4, r5
-  %c = shl i32 %a, %b
-  ret i32 %c
-}
-
-define i32 @srl_reg(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: srl_reg:
-; CHECK:   srl r2, r4, r5
-  %c = lshr i32 %a, %b
-  ret i32 %c
-}
-
-define i32 @sra_reg(i32 %a, i32 %b) nounwind {
-entry:
-; CHECK: sra_reg:
-; CHECK:   sra r2, r4, r5
-  %c = ashr i32 %a, %b
-  ret i32 %c
-}
diff --git a/llvm/test/CodeGen/Nios2/target_support.ll b/llvm/test/CodeGen/Nios2/target_support.ll
deleted file mode 100644
index 90e7020b2fc..00000000000
--- a/llvm/test/CodeGen/Nios2/target_support.ll
+++ /dev/null
@@ -1,11 +0,0 @@
-; 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
-}