test: modernise ARM CodeGen tests

Replace the use of grep with FileCheck.  Tidy up some of the tests.  A
few of the tests have been left as weak as previously, though some have
been made more stringent.

llvm-svn: 290616
diff --git a/llvm/test/CodeGen/ARM/2008-08-07-AsmPrintBug.ll b/llvm/test/CodeGen/ARM/2008-08-07-AsmPrintBug.ll
index dfbbeb9..99f3052 100644
--- a/llvm/test/CodeGen/ARM/2008-08-07-AsmPrintBug.ll
+++ b/llvm/test/CodeGen/ARM/2008-08-07-AsmPrintBug.ll
@@ -1,13 +1,16 @@
-; RUN: llc < %s -mtriple=arm-apple-darwin -mattr=+v6 -relocation-model=pic | grep comm
+; RUN: llc -mtriple arm-apple-darwin -mattr=+v6 -relocation-model pic -filetype asm -o - %s | FileCheck %s
 
-	%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
-	%struct.__gcov_var = type { %struct.FILE*, i32, i32, i32, i32, i32, i32, [1025 x i32] }
-	%struct.__sFILEX = type opaque
-	%struct.__sbuf = type { i8*, i32 }
-@__gcov_var = common global %struct.__gcov_var zeroinitializer		; <%struct.__gcov_var*> [#uses=1]
+%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
+%struct.__gcov_var = type { %struct.FILE*, i32, i32, i32, i32, i32, i32, [1025 x i32] }
+%struct.__sFILEX = type opaque
+%struct.__sbuf = type { i8*, i32 }
+@__gcov_var = common global %struct.__gcov_var zeroinitializer
 
 define i32 @__gcov_close() nounwind {
 entry:
-	load i32, i32* getelementptr (%struct.__gcov_var, %struct.__gcov_var* @__gcov_var, i32 0, i32 5), align 4		; <i32>:0 [#uses=1]
-	ret i32 %0
+  load i32, i32* getelementptr (%struct.__gcov_var, %struct.__gcov_var* @__gcov_var, i32 0, i32 5), align 4
+  ret i32 %0
 }
+
+; CHECK: comm
+