| ; Test 32-bit GPR accesses to a PC-relative location. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| @gsrc16 = global i16 1 |
| @gsrc32 = global i32 1 |
| @gdst16 = global i16 2 |
| @gdst32 = global i32 2 |
| |
| ; Check sign-extending loads from i16. |
| define i32 @f1() { |
| ; CHECK: f1: |
| ; CHECK: lhrl %r2, gsrc16 |
| ; CHECK: br %r14 |
| %val = load i16 *@gsrc16 |
| %ext = sext i16 %val to i32 |
| ret i32 %ext |
| } |
| |
| ; Check zero-extending loads from i16. |
| define i32 @f2() { |
| ; CHECK: f2: |
| ; CHECK: llhrl %r2, gsrc16 |
| ; CHECK: br %r14 |
| %val = load i16 *@gsrc16 |
| %ext = zext i16 %val to i32 |
| ret i32 %ext |
| } |
| |
| ; Check truncating 16-bit stores. |
| define void @f3(i32 %val) { |
| ; CHECK: f3: |
| ; CHECK: sthrl %r2, gdst16 |
| ; CHECK: br %r14 |
| %half = trunc i32 %val to i16 |
| store i16 %half, i16 *@gdst16 |
| ret void |
| } |
| |
| ; Check plain loads and stores. |
| define void @f4() { |
| ; CHECK: f4: |
| ; CHECK: lrl %r0, gsrc32 |
| ; CHECK: strl %r0, gdst32 |
| ; CHECK: br %r14 |
| %val = load i32 *@gsrc32 |
| store i32 %val, i32 *@gdst32 |
| ret void |
| } |