[CodeGen][DebugInfo] Add x86 entry value tests

We should also test the x86 target, since it has different backend defaults from
ARM.

Differential Revision: https://reviews.llvm.org/D158636

Author: felipepiovezan

llvm/test/CodeGen/AArch64/dbg-value-swift-async.ll

@@ -1,13 +1,21 @@
-; RUN: llc -O0 -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s
-; RUN: llc -O0 -fast-isel=false -global-isel=false -stop-after=finalize-isel %s -o - | FileCheck %s
-; RUN: llc -O0 -fast-isel -stop-after=finalize-isel %s -o - | FileCheck %s
+; RUN: llc --mtriple="aarch64-" -O0 -global-isel -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=AARCH
+; RUN: llc --mtriple="aarch64-" -O0 -fast-isel=false -global-isel=false -stop-after=finalize-isel %s -o - | FileCheck %s --check-prefix=AARCH
+; RUN: llc --mtriple="aarch64-" -O0 -fast-isel -stop-after=finalize-isel %s -o - | FileCheck %s --check-prefix=AARCH
 
-; CHECK-NOT:  DBG_VALUE
-; CHECK:      DBG_VALUE $x22, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
-; CHECK-NEXT: DBG_VALUE $x22, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
-; CHECK-NOT:  DBG_VALUE
 
-target triple="aarch64--"
+; RUN: llc --mtriple="x86_64-" -O0 -fast-isel=false -global-isel=false -stop-after=finalize-isel %s -o - | FileCheck %s --check-prefix=X86
+; RUN: llc --mtriple="x86_64-" -O0 -fast-isel -stop-after=finalize-isel %s -o - | FileCheck %s --check-prefix=X86
+
+; AARCH-NOT:  DBG_VALUE
+; AARCH:      DBG_VALUE $x22, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
+; AARCH-NEXT: DBG_VALUE $x22, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
+; AARCH-NOT:  DBG_VALUE
+
+; X86-NOT:  DBG_VALUE
+; X86:      DBG_VALUE $r14, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
+; X86-NEXT: DBG_VALUE $r14, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1)
+; X86-NOT:  DBG_VALUE
+
 
 define void @foo(ptr %unused_arg, ptr swiftasync %async_arg) !dbg !6 {
   call void @llvm.dbg.value(metadata ptr %async_arg, metadata !12, metadata !DIExpression(DW_OP_LLVM_entry_value, 1)), !dbg !14