[FIX] Add nvptx as required target for some OpenMP tests

Those tests set nvptx64 in IR but doesn't require the target. The optimization
now needs TTI such that if nvptx is not registered, it just uses whatever
default target is, which will cause the check lines mismatch.

Author: shiltian

llvm/test/Transforms/OpenMP/nested_parallelism.ll

@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
-; RUN: opt -S -passes=openmp-opt < %s | FileCheck %s
+; RUN: opt -S -mtriple=nvptx64 -passes=openmp-opt < %s | FileCheck %s
+; REQUIRES: nvptx-registered-target
 
 ; void foo1(int i) {
 ;   #pragma omp parallel
@@ -20,8 +21,6 @@
 ;     foo1(i);
 ; }
 
-target triple = "nvptx64"
-
 %struct.ident_t = type { i32, i32, i32, i32, ptr }
 %struct.KernelEnvironmentTy = type { %struct.ConfigurationEnvironmentTy, ptr, ptr }
 %struct.ConfigurationEnvironmentTy = type { i8, i8, i8, i32, i32, i32, i32, i32, i32 }

llvm/test/Transforms/OpenMP/remove_globalization.ll

@@ -1,9 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
 ; RUN: opt -S -passes=openmp-opt < %s | FileCheck %s
-; RUN: opt -passes=openmp-opt -pass-remarks=openmp-opt -pass-remarks-missed=openmp-opt -disable-output < %s 2>&1 | FileCheck %s -check-prefix=CHECK-REMARKS
-; RUN: opt -openmp-opt-disable-deglobalization -S -passes=openmp-opt < %s | FileCheck %s --check-prefix=CHECK-DISABLED
-target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
-target triple = "nvptx64"
+; RUN: opt -mtriple=nvptx64 -passes=openmp-opt -pass-remarks=openmp-opt -pass-remarks-missed=openmp-opt -disable-output < %s 2>&1 | FileCheck %s -check-prefix=CHECK-REMARKS
+; RUN: opt -mtriple=nvptx64 -openmp-opt-disable-deglobalization -S -passes=openmp-opt < %s | FileCheck %s --check-prefix=CHECK-DISABLED
+; REQUIRES: nvptx-registered-target
 
 @S = external local_unnamed_addr global ptr
 %struct.KernelEnvironmentTy = type { %struct.ConfigurationEnvironmentTy, ptr, ptr }

llvm/test/Transforms/OpenMP/spmdization_guarding_two_reaching_kernels.ll

@@ -1,6 +1,7 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
-; RUN: opt -S -passes=openmp-opt < %s | FileCheck %s --check-prefixes=CHECK
-; RUN: opt -S -passes=openmp-opt -openmp-opt-disable-spmdization < %s | FileCheck %s --check-prefixes=CHECK-DISABLE-SPMDIZATION
+; RUN: opt -S -mtriple=nvptx64 -passes=openmp-opt < %s | FileCheck %s --check-prefixes=CHECK
+; RUN: opt -S -mtriple=nvptx64 -passes=openmp-opt -openmp-opt-disable-spmdization < %s | FileCheck %s --check-prefixes=CHECK-DISABLE-SPMDIZATION
+; REQUIRES: nvptx-registered-target
 ;
 ; int G;
 ;
@@ -26,8 +27,6 @@
 ;   generic_helper();
 ; }
 ;
-target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
-target triple = "nvptx64"
 
 %struct.ident_t = type { i32, i32, i32, i32, ptr }
 %struct.ConfigurationEnvironmentTy = type { i8, i8, i8, i32, i32, i32, i32, i32, i32 }

llvm/test/Transforms/OpenMP/spmdization_no_guarding_two_reaching_kernels.ll

@@ -1,6 +1,7 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
-; RUN: opt -S -passes=openmp-opt < %s | FileCheck %s --check-prefixes=CHECK
-; RUN: opt -S -passes=openmp-opt -openmp-opt-disable-spmdization < %s | FileCheck %s --check-prefixes=CHECK-DISABLE-SPMDIZATION
+; RUN: opt -S -mtriple=nvptx64 -passes=openmp-opt < %s | FileCheck %s --check-prefixes=CHECK
+; RUN: opt -S -mtriple=nvptx64 -passes=openmp-opt -openmp-opt-disable-spmdization < %s | FileCheck %s --check-prefixes=CHECK-DISABLE-SPMDIZATION
+; REQUIRES: nvptx-registered-target
 ;
 ; __local int G;
 ;
@@ -27,8 +28,6 @@
 ;   generic_helper();
 ; }
 ;
-target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
-target triple = "nvptx64"
 
 %struct.ident_t = type { i32, i32, i32, i32, ptr }
 %struct.ConfigurationEnvironmentTy = type { i8, i8, i8, i32, i32, i32, i32, i32, i32 }