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IR: Don't allow non-default visibility on local linkage

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Visibilities of `hidden` and `protected` are meaningless for symbols
with local linkage.

  - Change the assembler to reject non-default visibility on symbols
    with local linkage.

  - Change the bitcode reader to auto-upgrade `hidden` and `protected`
    to `default` when the linkage is local.

  - Update LangRef.

<rdar://problem/16141113>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208263 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2014-05-07 22:57:20 +00:00
parent c7e175a743
commit 76c17d324c
23 changed files with 199 additions and 25 deletions
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6
test/Transforms/MergeFunc/inttoptr-address-space.ll
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@@ -6,10 +6,10 @@ target datalayout = "e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-
%.qux.2585 = type { i32, i32, i8* }
@g2 = external addrspace(1) constant [9 x i8], align 1
@g3 = internal hidden unnamed_addr constant [1 x i8*] [i8* bitcast (i8* (%.qux.2585 addrspace(1)*)* @func35 to i8*)]
@g3 = internal unnamed_addr constant [1 x i8*] [i8* bitcast (i8* (%.qux.2585 addrspace(1)*)* @func35 to i8*)]
define internal hidden i32 @func10(%.qux.2496 addrspace(1)* nocapture %this) align 2 {
define internal i32 @func10(%.qux.2496 addrspace(1)* nocapture %this) align 2 {
bb:
%tmp = getelementptr inbounds %.qux.2496 addrspace(1)* %this, i32 0, i32 1, i32 1
%tmp1 = load i32 addrspace(1)* %tmp, align 4
@@ -17,7 +17,7 @@ bb:
}
; Check for pointer bitwidth equal assertion failure
define internal hidden i8* @func35(%.qux.2585 addrspace(1)* nocapture %this) align 2 {
define internal i8* @func35(%.qux.2585 addrspace(1)* nocapture %this) align 2 {
bb:
; CHECK-LABEL: @func35(
; CHECK: %[[V2:.+]] = bitcast %.qux.2585 addrspace(1)* %{{.*}} to %.qux.2496 addrspace(1)*