845cc968e9
Switches import call optimization from being enabled by an LLVM flag to instead using a module attribute, and creates a new Clang flag that will set that attribute. This addresses the concern raised in the original PR: <https://github.com/llvm/llvm-project/pull/121516#discussion_r1911763991> This change also only creates the Called Global info if the module attribute is present, addressing this concern: <https://github.com/llvm/llvm-project/pull/122762#pullrequestreview-2547595934>
49 lines
1.5 KiB
LLVM
49 lines
1.5 KiB
LLVM
; RUN: llc -mtriple=aarch64-pc-windows-msvc < %s | FileCheck %s --check-prefix=CHECK
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define dso_local void @normal_call() local_unnamed_addr section "nc_sect" {
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entry:
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call void @a()
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call void @a()
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ret void
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}
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; CHECK-LABEL: normal_call:
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; CHECK: adrp [[ADRPREG:x[0-9]+]], __imp_a
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; CHECK-NEXT: ldr [[LDRREG:x[0-9]+]], [[[ADRPREG]], :lo12:__imp_a]
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; CHECK-NEXT: .Limpcall0:
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; CHECK-NEXT: blr [[LDRREG]]
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; CHECK-NEXT: .Limpcall1:
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; CHECK-NEXT: blr [[LDRREG]]
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define dso_local void @tail_call() local_unnamed_addr section "tc_sect" {
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entry:
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tail call void @b()
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ret void
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}
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; CHECK-LABEL: tail_call:
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; CHECK: adrp [[ADRPREG:x[0-9]+]], __imp_b
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; CHECK-NEXT: ldr [[LDRREG:x[0-9]+]], [[[ADRPREG]], :lo12:__imp_b]
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; CHECK-NEXT: .Limpcall2:
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; CHECK-NEXT: br [[LDRREG]]
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declare dllimport void @a() local_unnamed_addr
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declare dllimport void @b() local_unnamed_addr
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; CHECK-LABEL .section .impcall,"yi"
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; CHECK-NEXT .asciz "Imp_Call_V1"
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; CHECK-NEXT .word 32
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; CHECK-NEXT .secnum nc_sect
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; CHECK-NEXT .word 19
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; CHECK-NEXT .secoffset .Limpcall0
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; CHECK-NEXT .symidx __imp_a
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; CHECK-NEXT .word 19
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; CHECK-NEXT .secoffset .Limpcall1
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; CHECK-NEXT .symidx __imp_a
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; CHECK-NEXT .word 20
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; CHECK-NEXT .secnum tc_sect
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; CHECK-NEXT .word 19
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; CHECK-NEXT .secoffset .Limpcall2
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; CHECK-NEXT .symidx __imp_b
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"import-call-optimization", i32 1}
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