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9f2d511fe1
Before this patch we had @a = weak global ... but @b = alias weak ... The patch changes aliases to look more like global variables. Looking at some really old code suggests that the reason was that the old bison based parser had a reduction for alias linkages and another one for global variable linkages. Putting the alias first avoided the reduce/reduce conflict. The days of the old .ll parser are long gone. The new one parses just "linkage" and a later check is responsible for deciding if a linkage is valid in a given context. llvm-svn: 214355
78 lines
1.8 KiB
LLVM
78 lines
1.8 KiB
LLVM
; RUN: llc < %s -mtriple=i686-pc-linux-gnu -asm-verbose=false \
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; RUN: -relocation-model=pic | FileCheck %s
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@thread_var = thread_local global i32 42, align 4
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@thread_alias = thread_local(localdynamic) alias i32* @thread_var
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; CHECK-LABEL: get_thread_var
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define i32* @get_thread_var() {
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; CHECK: leal thread_var@TLSGD
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ret i32* @thread_var
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}
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; CHECK-LABEL: get_thread_alias
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define i32* @get_thread_alias() {
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; CHECK: leal thread_alias@TLSLD
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ret i32* @thread_alias
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}
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@bar = global i32 42
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; CHECK-DAG: .globl foo1
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@foo1 = alias i32* @bar
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; CHECK-DAG: .globl foo2
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@foo2 = alias i32* @bar
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%FunTy = type i32()
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define i32 @foo_f() {
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ret i32 0
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}
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; CHECK-DAG: .weak bar_f
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@bar_f = weak alias %FunTy* @foo_f
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@bar_l = linkonce_odr alias i32* @bar
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; CHECK-DAG: .weak bar_l
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@bar_i = internal alias i32* @bar
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; CHECK-DAG: .globl A
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@A = alias bitcast (i32* @bar to i64*)
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; CHECK-DAG: .globl bar_h
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; CHECK-DAG: .hidden bar_h
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@bar_h = hidden alias i32* @bar
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; CHECK-DAG: .globl bar_p
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; CHECK-DAG: .protected bar_p
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@bar_p = protected alias i32* @bar
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; CHECK-DAG: test2 = bar+4
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@test2 = alias getelementptr(i32 *@bar, i32 1)
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; CHECK-DAG: test3 = 42
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@test3 = alias inttoptr(i32 42 to i32*)
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; CHECK-DAG: test4 = bar
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@test4 = alias inttoptr(i64 ptrtoint (i32* @bar to i64) to i32*)
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; CHECK-DAG: test5 = test2-bar
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@test5 = alias inttoptr(i32 sub (i32 ptrtoint (i32* @test2 to i32),
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i32 ptrtoint (i32* @bar to i32)) to i32*)
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; CHECK-DAG: .globl test
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define i32 @test() {
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entry:
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%tmp = load i32* @foo1
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%tmp1 = load i32* @foo2
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%tmp0 = load i32* @bar_i
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%tmp2 = call i32 @foo_f()
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%tmp3 = add i32 %tmp, %tmp2
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%tmp4 = call %FunTy* @bar_f()
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%tmp5 = add i32 %tmp3, %tmp4
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%tmp6 = add i32 %tmp1, %tmp5
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%tmp7 = add i32 %tmp6, %tmp0
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ret i32 %tmp7
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}
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