|  | ; Test moves between GPRs. | 
|  | ; | 
|  | ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s | 
|  |  | 
|  | ; Test 8-bit moves, which should get promoted to i32. | 
|  | define i8 @f1(i8 %a, i8 %b) { | 
|  | ; CHECK-LABEL: f1: | 
|  | ; CHECK: lr %r2, %r3 | 
|  | ; CHECK: br %r14 | 
|  | ret i8 %b | 
|  | } | 
|  |  | 
|  | ; Test 16-bit moves, which again should get promoted to i32. | 
|  | define i16 @f2(i16 %a, i16 %b) { | 
|  | ; CHECK-LABEL: f2: | 
|  | ; CHECK: lr %r2, %r3 | 
|  | ; CHECK: br %r14 | 
|  | ret i16 %b | 
|  | } | 
|  |  | 
|  | ; Test 32-bit moves. | 
|  | define i32 @f3(i32 %a, i32 %b) { | 
|  | ; CHECK-LABEL: f3: | 
|  | ; CHECK: lr %r2, %r3 | 
|  | ; CHECK: br %r14 | 
|  | ret i32 %b | 
|  | } | 
|  |  | 
|  | ; Test 64-bit moves. | 
|  | define i64 @f4(i64 %a, i64 %b) { | 
|  | ; CHECK-LABEL: f4: | 
|  | ; CHECK: lgr %r2, %r3 | 
|  | ; CHECK: br %r14 | 
|  | ret i64 %b | 
|  | } |