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acdb307db3
This matches gcc's behavior. It also seems natural given that aliases contain other properties that govern how it is accessed (linkage, visibility, dll storage). Clang still has to be updated to expose this feature to C. llvm-svn: 209759
42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: llc < %s -relocation-model=pic | FileCheck %s
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; PR2137
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; ModuleID = '1.c'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
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target triple = "i386-pc-linux-gnu"
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%struct.__res_state = type { i32 }
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@__resp = thread_local global %struct.__res_state* @_res ; <%struct.__res_state**> [#uses=1]
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@_res = global %struct.__res_state zeroinitializer, section ".bss" ; <%struct.__res_state*> [#uses=1]
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@__libc_resp = hidden thread_local alias %struct.__res_state** @__resp ; <%struct.__res_state**> [#uses=2]
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define i32 @foo() {
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; CHECK-LABEL: foo:
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; CHECK: leal __libc_resp@TLSLD
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entry:
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%retval = alloca i32 ; <i32*> [#uses=1]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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%tmp = load %struct.__res_state** @__libc_resp, align 4 ; <%struct.__res_state*> [#uses=1]
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%tmp1 = getelementptr %struct.__res_state* %tmp, i32 0, i32 0 ; <i32*> [#uses=1]
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store i32 0, i32* %tmp1, align 4
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br label %return
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return: ; preds = %entry
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%retval2 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval2
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}
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define i32 @bar() {
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; CHECK-LABEL: bar:
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; CHECK: leal __libc_resp@TLSLD
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entry:
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%retval = alloca i32 ; <i32*> [#uses=1]
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%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
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%tmp = load %struct.__res_state** @__libc_resp, align 4 ; <%struct.__res_state*> [#uses=1]
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%tmp1 = getelementptr %struct.__res_state* %tmp, i32 0, i32 0 ; <i32*> [#uses=1]
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store i32 1, i32* %tmp1, align 4
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br label %return
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return: ; preds = %entry
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%retval2 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval2
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}
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