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abdaedf85b
Previously, the dllimport attribute did the right thing in terms of treating it as a pointer to a value, but this makes sure the names get mangled properly, and calls to such functions load the function from the __imp_ pointer. This is based on SVN r212431 and r212430 where the same was implemented for ARM. Differential Revision: https://reviews.llvm.org/D38530 llvm-svn: 316555
55 lines
1.0 KiB
LLVM
55 lines
1.0 KiB
LLVM
; RUN: llc -mtriple aarch64-unknown-windows-msvc -filetype asm -o - %s | FileCheck %s
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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, i32* @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, __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, i32* @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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; CHECK: ldr w0, [x8, ext]
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; CHECK: ret
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define i32* @get_var_pointer() {
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ret i32* @var
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}
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; CHECK-LABEL: get_var_pointer
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; CHECK: adrp x0, __imp_var
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; CHECK: ldr x0, [x0, __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, __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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; CHECK: b internal
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