Change the x86 assembly output to use tab characters to separate the
mnemonics from their operands instead of single spaces. This makes the
assembly output a little more consistent with various other compilers
(f.e. GCC), and slightly easier to read. Also, update the regression
tests accordingly.

llvm-svn: 40648
diff --git a/llvm/test/CodeGen/X86/lea-3.ll b/llvm/test/CodeGen/X86/lea-3.ll
index 89991fd..8b4faf2 100644
--- a/llvm/test/CodeGen/X86/lea-3.ll
+++ b/llvm/test/CodeGen/X86/lea-3.ll
@@ -1,11 +1,11 @@
 
-; RUN: llvm-as < %s | llc -march=x86-64 | grep {leal (%rdi,%rdi,2), %eax}
+; RUN: llvm-as < %s | llc -march=x86-64 | grep {leal	(%rdi,%rdi,2), %eax}
 define i32 @test(i32 %a) {
         %tmp2 = mul i32 %a, 3           ; <i32> [#uses=1]
         ret i32 %tmp2
 }
 
-; RUN: llvm-as < %s | llc -march=x86-64 | grep {leaq (,%rdi,4), %rax}
+; RUN: llvm-as < %s | llc -march=x86-64 | grep {leaq	(,%rdi,4), %rax}
 define i64 @test2(i64 %a) {
         %tmp2 = shl i64 %a, 2
 	%tmp3 = or i64 %tmp2, %a