103 lines
2.8 KiB
LLVM
103 lines
2.8 KiB
LLVM
; RUN: llc -mtriple aarch64-unknown-windows-msvc -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,DAG-ISEL
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; RUN: llc -mtriple aarch64-unknown-windows-msvc -fast-isel -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,FAST-ISEL
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; RUN: llc -mtriple aarch64-unknown-windows-msvc -verify-machineinstrs -O0 -filetype asm -o - %s | FileCheck %s -check-prefixes=CHECK,GLOBAL-ISEL,GLOBAL-ISEL-FALLBACK
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@var = external dllimport global i32
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@ext = external global i32
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declare dllimport i32 @external()
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declare i32 @internal()
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define i32 @get_var() {
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%1 = load i32, ptr @var, align 4
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ret i32 %1
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}
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; CHECK-LABEL: get_var
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; CHECK: adrp x8, __imp_var
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; CHECK: ldr x8, [x8, :lo12:__imp_var]
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; CHECK: ldr w0, [x8]
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; CHECK: ret
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define i32 @get_ext() {
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%1 = load i32, ptr @ext, align 4
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ret i32 %1
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}
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; CHECK-LABEL: get_ext
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; CHECK: adrp x8, ext
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; DAG-ISEL: ldr w0, [x8, :lo12:ext]
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; FAST-ISEL: add x8, x8, :lo12:ext
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; FAST-ISEL: ldr w0, [x8]
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; GLOBAL-ISEL-FALLBACK: ldr w0, [x8, :lo12:ext]
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; CHECK: ret
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define ptr @get_var_pointer() {
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ret ptr @var
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}
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; CHECK-LABEL: get_var_pointer
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; CHECK: adrp [[REG1:x[0-9]+]], __imp_var
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; CHECK: ldr {{x[0-9]+}}, [[[REG1]], :lo12:__imp_var]
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; CHECK: ret
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define i32 @call_external() {
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%call = tail call i32 @external()
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ret i32 %call
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}
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; CHECK-LABEL: call_external
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; CHECK: adrp x0, __imp_external
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; CHECK: ldr x0, [x0, :lo12:__imp_external]
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; CHECK: br x0
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define i32 @call_internal() {
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%call = tail call i32 @internal()
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ret i32 %call
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}
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; CHECK-LABEL: call_internal
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; DAG-ISEL: b internal
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; FAST-ISEL: b internal
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; GLOBAL-ISEL: b internal
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define void @call_try_catch() personality ptr @__gxx_personality_seh0 {
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entry:
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invoke void @myFunc()
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to label %try.cont unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { ptr, i32 }
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catch ptr @_ZTIi
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%1 = extractvalue { ptr, i32 } %0, 1
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%2 = tail call i32 @llvm.eh.typeid.for(ptr nonnull @_ZTIi) #1
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%matches = icmp eq i32 %1, %2
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %lpad
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%3 = extractvalue { ptr, i32 } %0, 0
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%4 = tail call ptr @__cxa_begin_catch(ptr %3) #1
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tail call void @__cxa_end_catch() #1
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br label %try.cont
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try.cont: ; preds = %entry, %catch
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ret void
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eh.resume: ; preds = %lpad
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resume { ptr, i32 } %0
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}
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; CHECK-LABEL: call_try_catch
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; CHECK: adrp x8, __imp_myFunc
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; CHECK: ldr x8, [x8, :lo12:__imp_myFunc]
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; CHECK: blr x8
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declare dllimport void @myFunc()
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@_ZTIi = external constant ptr
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declare dso_local i32 @__gxx_personality_seh0(...)
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declare i32 @llvm.eh.typeid.for(ptr) #0
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declare dso_local ptr @__cxa_begin_catch(ptr)
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declare dso_local void @__cxa_end_catch()
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attributes #0 = { nounwind memory(none) }
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attributes #1 = { nounwind }
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