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https://github.com/c64scene-ar/llvm-6502.git
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2d21b25393
This patch changes GlobalAlias to point to an arbitrary ConstantExpr and it is
up to MC (or the system assembler) to decide if that expression is valid or not.
This reduces our ability to diagnose invalid uses and how early we can spot
them, but it also lets us do things like
@test5 = alias inttoptr(i32 sub (i32 ptrtoint (i32* @test2 to i32),
i32 ptrtoint (i32* @bar to i32)) to i32*)
An important implication of this patch is that the notion of aliased global
doesn't exist any more. The alias has to encode the information needed to
access it in its metadata (linkage, visibility, type, etc).
Another consequence to notice is that getSection has to return a "const char *".
It could return a NullTerminatedStringRef if there was such a thing, but when
that was proposed the decision was to just uses "const char*" for that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210062 91177308-0d34-0410-b5e6-96231b3b80d8
109 lines
2.6 KiB
LLVM
109 lines
2.6 KiB
LLVM
; RUN: llc -mtriple x86_64-pc-win32 < %s | FileCheck -check-prefix=CHECK -check-prefix=WIN32 %s
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; RUN: llc -mtriple x86_64-pc-mingw32 < %s | FileCheck -check-prefix=CHECK -check-prefix=MINGW %s
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; CHECK: .text
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define void @notExported() {
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ret void
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}
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; CHECK: .globl f1
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define dllexport void @f1() {
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ret void
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}
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; CHECK: .globl f2
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define dllexport void @f2() unnamed_addr {
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ret void
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}
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; CHECK: .section .text,"xr",discard,lnk1
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; CHECK: .globl lnk1
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define linkonce_odr dllexport void @lnk1() {
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ret void
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}
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; CHECK: .section .text,"xr",discard,lnk2
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; CHECK: .globl lnk2
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define linkonce_odr dllexport void @lnk2() alwaysinline {
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ret void
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}
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; CHECK: .section .text,"xr",discard,weak1
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; CHECK: .globl weak1
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define weak_odr dllexport void @weak1() {
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ret void
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}
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; CHECK: .data
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; CHECK: .globl Var1
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@Var1 = dllexport global i32 1, align 4
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; CHECK: .rdata,"rd"
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; CHECK: .globl Var2
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@Var2 = dllexport unnamed_addr constant i32 1
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; CHECK: .comm Var3
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@Var3 = common dllexport global i32 0, align 4
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; CHECK: .section .data,"wd",discard,WeakVar1
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; CHECK: .globl WeakVar1
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@WeakVar1 = weak_odr dllexport global i32 1, align 4
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; CHECK: .section .rdata,"rd",discard,WeakVar2
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; CHECK: .globl WeakVar2
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@WeakVar2 = weak_odr dllexport unnamed_addr constant i32 1
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; CHECK: .globl alias
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; CHECK: alias = notExported
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@alias = dllexport alias void()* @notExported
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; CHECK: .globl alias2
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; CHECK: alias2 = f1
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@alias2 = dllexport alias void()* @f1
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; CHECK: .globl alias3
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; CHECK: alias3 = notExported
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@alias3 = dllexport alias void()* @notExported
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; CHECK: .weak weak_alias
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; CHECK: weak_alias = f1
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@weak_alias = dllexport alias weak_odr void()* @f1
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@blob = global [6 x i8] c"\B8*\00\00\00\C3", section ".text", align 16
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@blob_alias = dllexport alias bitcast ([6 x i8]* @blob to i32 ()*)
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; CHECK: .section .drectve
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; WIN32: " /EXPORT:Var1,DATA"
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; WIN32: " /EXPORT:Var2,DATA"
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; WIN32: " /EXPORT:Var3,DATA"
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; WIN32: " /EXPORT:WeakVar1,DATA"
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; WIN32: " /EXPORT:WeakVar2,DATA"
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; WIN32: " /EXPORT:f1"
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; WIN32: " /EXPORT:f2"
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; WIN32: " /EXPORT:lnk1"
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; WIN32: " /EXPORT:lnk2"
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; WIN32: " /EXPORT:weak1"
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; WIN32: " /EXPORT:alias"
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; WIN32: " /EXPORT:alias2"
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; WIN32: " /EXPORT:alias3"
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; WIN32: " /EXPORT:weak_alias"
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; WIN32: " /EXPORT:blob_alias"
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; MINGW: " -export:Var1,data"
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; MINGW: " -export:Var2,data"
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; MINGW: " -export:Var3,data"
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; MINGW: " -export:WeakVar1,data"
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; MINGW: " -export:WeakVar2,data"
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; MINGW: " -export:f1"
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; MINGW: " -export:f2"
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; MINGW: " -export:lnk1"
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; MINGW: " -export:lnk2"
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; MINGW: " -export:weak1"
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; MINGW: " -export:alias"
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; MINGW: " -export:alias2"
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; MINGW: " -export:alias3"
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; MINGW: " -export:weak_alias"
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; MINGW: " -export:blob_alias"
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