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 -verify-machineinstrs -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 7declare dllimport i32 @external() 8declare i32 @internal() 9 10define i32 @get_var() { 11 %1 = load i32, ptr @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, :lo12:__imp_var] 18; CHECK: ldr w0, [x8] 19; CHECK: ret 20 21define i32 @get_ext() { 22 %1 = load i32, ptr @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, :lo12:ext] 29; FAST-ISEL: add x8, x8, :lo12:ext 30; FAST-ISEL: ldr w0, [x8] 31; GLOBAL-ISEL-FALLBACK: ldr w0, [x8, :lo12:ext] 32; CHECK: ret 33 34define ptr @get_var_pointer() { 35 ret ptr @var 36} 37 38; CHECK-LABEL: get_var_pointer 39; CHECK: adrp [[REG1:x[0-9]+]], __imp_var 40; CHECK: ldr {{x[0-9]+}}, [[[REG1]], :lo12:__imp_var] 41; CHECK: ret 42 43define i32 @call_external() { 44 %call = tail call i32 @external() 45 ret i32 %call 46} 47 48; CHECK-LABEL: call_external 49; CHECK: adrp x0, __imp_external 50; CHECK: ldr x0, [x0, :lo12:__imp_external] 51; CHECK: br x0 52 53define i32 @call_internal() { 54 %call = tail call i32 @internal() 55 ret i32 %call 56} 57 58; CHECK-LABEL: call_internal 59; DAG-ISEL: b internal 60; FAST-ISEL: b internal 61; GLOBAL-ISEL: b internal 62 63define void @call_try_catch() personality ptr @__gxx_personality_seh0 { 64entry: 65 invoke void @myFunc() 66 to label %try.cont unwind label %lpad 67 68lpad: ; preds = %entry 69 %0 = landingpad { ptr, i32 } 70 catch ptr @_ZTIi 71 %1 = extractvalue { ptr, i32 } %0, 1 72 %2 = tail call i32 @llvm.eh.typeid.for(ptr nonnull @_ZTIi) #1 73 %matches = icmp eq i32 %1, %2 74 br i1 %matches, label %catch, label %eh.resume 75 76catch: ; preds = %lpad 77 %3 = extractvalue { ptr, i32 } %0, 0 78 %4 = tail call ptr @__cxa_begin_catch(ptr %3) #1 79 tail call void @__cxa_end_catch() #1 80 br label %try.cont 81 82try.cont: ; preds = %entry, %catch 83 ret void 84 85eh.resume: ; preds = %lpad 86 resume { ptr, i32 } %0 87} 88 89; CHECK-LABEL: call_try_catch 90; CHECK: adrp x8, __imp_myFunc 91; CHECK: ldr x8, [x8, :lo12:__imp_myFunc] 92; CHECK: blr x8 93 94declare dllimport void @myFunc() 95 96@_ZTIi = external constant ptr 97declare dso_local i32 @__gxx_personality_seh0(...) 98declare i32 @llvm.eh.typeid.for(ptr) #0 99declare dso_local ptr @__cxa_begin_catch(ptr) 100declare dso_local void @__cxa_end_catch() 101 102attributes #0 = { nounwind memory(none) } 103attributes #1 = { nounwind } 104