| ; RUN: llc -mtriple=thumbv7s %s -o - | FileCheck %s |
| ; RUN: llc -mtriple=armv7s %s -o - | FileCheck %s |
| |
| ; CodeGen should be able to set and reset the MinSize subtarget-feature, and |
| ; make use of it in deciding whether to use MOVW/MOVT for global variables or a |
| ; lit-pool load (saving roughly 2 bytes of code). |
| |
| @var = global i32 0 |
| |
| define i32 @small_global() minsize { |
| ; CHECK-LABEL: small_global: |
| ; CHECK: ldr r[[GLOBDEST:[0-9]+]], {{.?LCPI0_0}} |
| ; CHECK: ldr r0, [r[[GLOBDEST]]] |
| |
| %val = load i32, i32* @var |
| ret i32 %val |
| } |
| |
| define i32 @big_global() { |
| ; CHECK-LABEL: big_global: |
| ; CHECK: movw [[GLOBDEST:r[0-9]+]], :lower16:var |
| ; CHECK: movt [[GLOBDEST]], :upper16:var |
| |
| %val = load i32, i32* @var |
| ret i32 %val |
| } |
