1 ; RUN: llc -mtriple aarch64-unknown-windows-msvc -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,DAG-ISEL 2 ; RUN: llc -mtriple aarch64-unknown-windows-msvc -fast-isel -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,FAST-ISEL 3 ; RUN: llc -mtriple aarch64-unknown-windows-msvc -O0 -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,GLOBAL-ISEL,GLOBAL-ISEL-FALLBACK 4 5 @var = external dllimport global i32 6 @ext = external global i32 7 declare dllimport i32 @external() 8 declare i32 @internal() 9 10 define i32 @get_var() { 11 %1 = load i32, i32* @var, align 4 12 ret i32 %1 13 } 14 15 ; CHECK-LABEL: get_var 16 ; CHECK: adrp x8, __imp_var 17 ; CHECK: ldr x8, [x8, __imp_var] 18 ; CHECK: ldr w0, [x8] 19 ; CHECK: ret 20 21 define i32 @get_ext() { 22 %1 = load i32, i32* @ext, align 4 23 ret i32 %1 24 } 25 26 ; CHECK-LABEL: get_ext 27 ; CHECK: adrp x8, ext 28 ; DAG-ISEL: ldr w0, [x8, ext] 29 ; FAST-ISEL: add x8, x8, ext 30 ; FAST-ISEL: ldr w0, [x8] 31 ; GLOBAL-ISEL-FALLBACK: add x8, x8, ext 32 ; GLOBAL-ISEL-FALLBACK: ldr w0, [x8] 33 ; CHECK: ret 34 35 define i32* @get_var_pointer() { 36 ret i32* @var 37 } 38 39 ; CHECK-LABEL: get_var_pointer 40 ; CHECK: adrp [[REG1:x[0-9]+]], __imp_var 41 ; CHECK: ldr {{x[0-9]+}}, {{\[}}[[REG1]], __imp_var] 42 ; CHECK: ret 43 44 define i32 @call_external() { 45 %call = tail call i32 @external() 46 ret i32 %call 47 } 48 49 ; CHECK-LABEL: call_external 50 ; CHECK: adrp x0, __imp_external 51 ; CHECK: ldr x0, [x0, __imp_external] 52 ; CHECK: br x0 53 54 define i32 @call_internal() { 55 %call = tail call i32 @internal() 56 ret i32 %call 57 } 58 59 ; CHECK-LABEL: call_internal 60 ; DAG-ISEL: b internal 61 ; FAST-ISEL: b internal 62 ; GLOBAL-ISEL: bl internal 63
