| ; RUN: llc --relocation-model=static < %s \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-STATIC,CHECK-SELECTIONDAGISEL |
| |
| ; RUN: llc --aarch64-enable-global-isel-at-O=0 -O0 < %s \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-STATIC,CHECK-GLOBALISEL |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64-unknown-linux-android" |
| |
| @global = external dso_local global i32 |
| declare dso_local void @func() |
| |
| define ptr @global_addr() #0 { |
| ; Static relocation model has common codegen between SelectionDAGISel and |
| ; GlobalISel when the address-taken of a global isn't folded into a load or |
| ; store instruction. |
| ; CHECK-STATIC: global_addr: |
| ; CHECK-STATIC: adrp [[REG:x[0-9]+]], :pg_hi21_nc:global |
| ; CHECK-STATIC: movk [[REG]], #:prel_g3:global+4294967296 |
| ; CHECK-STATIC: add x0, [[REG]], :lo12:global |
| ; CHECK-STATIC: ret |
| |
| ret ptr @global |
| } |
| |
| define i32 @global_load() #0 { |
| ; CHECK-SELECTIONDAGISEL: global_load: |
| ; CHECK-SELECTIONDAGISEL: adrp [[REG:x[0-9]+]], :pg_hi21_nc:global |
| ; CHECK-SELECTIONDAGISEL: ldr w0, [[[REG]], :lo12:global] |
| ; CHECK-SELECTIONDAGISEL: ret |
| |
| ; CHECK-GLOBALISEL: global_load: |
| ; CHECK-GLOBALISEL: adrp [[REG:x[0-9]+]], :pg_hi21_nc:global |
| ; CHECK-GLOBALISEL: movk [[REG]], #:prel_g3:global+4294967296 |
| ; CHECK-GLOBALISEL: add [[REG]], [[REG]], :lo12:global |
| ; CHECK-GLOBALISEL: ldr w0, [[[REG]]] |
| ; CHECK-GLOBALISEL: ret |
| |
| %load = load i32, ptr @global |
| ret i32 %load |
| } |
| |
| define void @global_store() #0 { |
| ; CHECK-SELECTIONDAGISEL: global_store: |
| ; CHECK-SELECTIONDAGISEL: adrp [[REG:x[0-9]+]], :pg_hi21_nc:global |
| ; CHECK-SELECTIONDAGISEL: str wzr, [[[REG]], :lo12:global] |
| ; CHECK-SELECTIONDAGISEL: ret |
| |
| ; CHECK-GLOBALISEL: global_store: |
| ; CHECK-GLOBALISEL: adrp [[REG:x[0-9]+]], :pg_hi21_nc:global |
| ; CHECK-GLOBALISEL: movk [[REG]], #:prel_g3:global+4294967296 |
| ; CHECK-GLOBALISEL: add [[REG]], [[REG]], :lo12:global |
| ; CHECK-GLOBALISEL: str wzr, [[[REG]]] |
| ; CHECK-GLOBALISEL: ret |
| |
| store i32 0, ptr @global |
| ret void |
| } |
| |
| define ptr @func_addr() #0 { |
| ; CHECK-STATIC: func_addr: |
| ; CHECK-STATIC: adrp [[REG:x[0-9]+]], func |
| ; CHECK-STATIC: add x0, [[REG]], :lo12:func |
| ; CHECK-STATIC: ret |
| |
| ret ptr @func |
| } |
| |
| attributes #0 = { "target-features"="+tagged-globals" } |