consolidate and filecheckize two tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95652 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/add.ll b/test/CodeGen/X86/add.ll
new file mode 100644
index 0000000..71c91fb
--- /dev/null
+++ b/test/CodeGen/X86/add.ll
@@ -0,0 +1,25 @@
+; RUN: llc < %s -march=x86 | FileCheck %s -check-prefix=X32
+; RUN: llc < %s -march=x86-64 | FileCheck %s -check-prefix=X64
+
+; The immediate can be encoded in a smaller way if the
+; instruction is a sub instead of an add.
+
+define i32 @test1(i32 inreg %a) nounwind {
+ %b = add i32 %a, 128
+ ret i32 %b
+; X32: subl $-128, %eax
+; X64: subl $-128,
+}
+define i64 @test2(i64 inreg %a) nounwind {
+ %b = add i64 %a, 2147483648
+ ret i64 %b
+; X32: addl $-2147483648, %eax
+; X64: subq $-2147483648,
+}
+define i64 @test3(i64 inreg %a) nounwind {
+ %b = add i64 %a, 128
+ ret i64 %b
+
+; X32: addl $128, %eax
+; X64: subq $-128,
+}