1 ; RUN: llc -mtriple=thumbv7s %s -o - | FileCheck %s 2 ; RUN: llc -mtriple=armv7s %s -o - | FileCheck %s 3 4 ; CodeGen should be able to set and reset the MinSize subtarget-feature, and 5 ; make use of it in deciding whether to use MOVW/MOVT for global variables or a 6 ; lit-pool load (saving roughly 2 bytes of code). 7 8 @var = global i32 0 9 10 define i32 @small_global() minsize { 11 ; CHECK-LABEL: small_global: 12 ; CHECK: ldr r[[GLOBDEST:[0-9]+]], {{.?LCPI0_0}} 13 ; CHECK: ldr r0, [r[[GLOBDEST]]] 14 15 %val = load i32, i32* @var 16 ret i32 %val 17 } 18 19 define i32 @big_global() { 20 ; CHECK-LABEL: big_global: 21 ; CHECK: movw [[GLOBDEST:r[0-9]+]], :lower16:var 22 ; CHECK: movt [[GLOBDEST]], :upper16:var 23 24 %val = load i32, i32* @var 25 ret i32 %val 26 } 27
