Update LLVM for rebase to r212749.

Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls

Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18

20 files changed, 154 insertions, 14 deletions

diff --git a/test/Linker/Inputs/PR8300.b.ll b/test/Linker/Inputs/PR8300.b.ll
index 362d309..9e538f5 100644
--- a/test/Linker/Inputs/PR8300.b.ll
+++ b/test/Linker/Inputs/PR8300.b.ll
@@ -1,7 +1,7 @@
 %foo = type { [8 x i8] }
 %bar = type { [9 x i8] }
 
-@zed = alias void (%foo*), void (%bar*)* @xyz
+@zed = alias bitcast (void (%bar*)* @xyz to void (%foo*)*)
 
 define void @xyz(%bar* %this) {
 entry:
diff --git a/test/Linker/Inputs/alias.ll b/test/Linker/Inputs/alias.ll
index b869cae..f379476 100644
--- a/test/Linker/Inputs/alias.ll
+++ b/test/Linker/Inputs/alias.ll
@@ -1,3 +1,3 @@
 @zed = global i32 42
 @foo = alias i32* @zed
-@foo2 = alias i16, i32* @zed
+@foo2 = alias bitcast (i32* @zed to i16*)
diff --git a/test/Linker/Inputs/comdat.ll b/test/Linker/Inputs/comdat.ll
new file mode 100644
index 0000000..fdcca49
--- /dev/null
+++ b/test/Linker/Inputs/comdat.ll
@@ -0,0 +1,20 @@
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$foo = comdat largest
+@foo = global i64 43, comdat $foo
+
+define i32 @bar() comdat $foo {
+  ret i32 43
+}
+
+$qux = comdat largest
+@qux = global i32 13, comdat $qux
+@in_unselected_group = global i32 13, comdat $qux
+
+define i32 @baz() comdat $qux {
+  ret i32 13
+}
+
+$any = comdat any
+@any = global i64 7, comdat $any
diff --git a/test/Linker/Inputs/comdat2.ll b/test/Linker/Inputs/comdat2.ll
new file mode 100644
index 0000000..9e18304
--- /dev/null
+++ b/test/Linker/Inputs/comdat2.ll
@@ -0,0 +1,2 @@
+$foo = comdat largest
+@foo = global i64 43, comdat $foo
diff --git a/test/Linker/Inputs/comdat3.ll b/test/Linker/Inputs/comdat3.ll
new file mode 100644
index 0000000..06f08b9
--- /dev/null
+++ b/test/Linker/Inputs/comdat3.ll
@@ -0,0 +1,2 @@
+$foo = comdat noduplicates
+@foo = global i64 43, comdat $foo
diff --git a/test/Linker/Inputs/comdat4.ll b/test/Linker/Inputs/comdat4.ll
new file mode 100644
index 0000000..bbfe3f7
--- /dev/null
+++ b/test/Linker/Inputs/comdat4.ll
@@ -0,0 +1,5 @@
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$foo = comdat samesize
+@foo = global i64 42, comdat $foo
diff --git a/test/Linker/Inputs/comdat5.ll b/test/Linker/Inputs/comdat5.ll
new file mode 100644
index 0000000..800af18
--- /dev/null
+++ b/test/Linker/Inputs/comdat5.ll
@@ -0,0 +1,15 @@
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+%MSRTTICompleteObjectLocator = type { i32, i32, i32, i8*, %MSRTTIClassHierarchyDescriptor* }
+%MSRTTIClassHierarchyDescriptor = type { i32, i32, i32, %MSRTTIBaseClassDescriptor** }
+%MSRTTIBaseClassDescriptor = type { i8*, i32, i32, i32, i32, i32, %MSRTTIClassHierarchyDescriptor* }
+%struct.S = type { i32 (...)** }
+
+$"\01??_7S@@6B@" = comdat largest
+
+@"\01??_R4S@@6B@" = external constant %MSRTTICompleteObjectLocator
+@some_name = private unnamed_addr constant [2 x i8*] [i8* bitcast (%MSRTTICompleteObjectLocator* @"\01??_R4S@@6B@" to i8*), i8* bitcast (void (%struct.S*, i32)* @"\01??_GS@@UAEPAXI@Z" to i8*)], comdat $"\01??_7S@@6B@"
+@"\01??_7S@@6B@" = alias getelementptr([2 x i8*]* @some_name, i32 0, i32 1)
+
+declare x86_thiscallcc void @"\01??_GS@@UAEPAXI@Z"(%struct.S*, i32) unnamed_addr
diff --git a/test/Linker/Inputs/cycle.ll b/test/Linker/Inputs/cycle.ll
deleted file mode 100644
index d0eddb6..0000000
--- a/test/Linker/Inputs/cycle.ll
+++ /dev/null
@@ -1,2 +0,0 @@
-@foo = alias i32* @bar
-@bar = weak global i32 0
diff --git a/test/Linker/alias.ll b/test/Linker/alias.ll
index 5809a15..bce51ad 100644
--- a/test/Linker/alias.ll
+++ b/test/Linker/alias.ll
@@ -5,12 +5,12 @@
 ; CHECK-DAG: @foo = alias i32* @zed
 
 @bar = alias i32* @foo
-; CHECK-DAG: @bar = alias i32* @zed
+; CHECK-DAG: @bar = alias i32* @foo
 
 @foo2 = weak global i32 0
-; CHECK-DAG: @foo2 = alias i16, i32* @zed
+; CHECK-DAG: @foo2 = alias bitcast (i32* @zed to i16*)
 
 @bar2 = alias i32* @foo2
-; CHECK-DAG: @bar2 = alias i32* @zed
+; CHECK-DAG: @bar2 = alias bitcast (i16* @foo2 to i32*)
 
 ; CHECK-DAG: @zed = global i32 42
diff --git a/test/Linker/comdat.ll b/test/Linker/comdat.ll
new file mode 100644
index 0000000..4d2aef7
--- /dev/null
+++ b/test/Linker/comdat.ll
@@ -0,0 +1,32 @@
+; RUN: llvm-link %s %p/Inputs/comdat.ll -S -o - | FileCheck %s
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$foo = comdat largest
+@foo = global i32 42, comdat $foo
+
+define i32 @bar() comdat $foo {
+  ret i32 42
+}
+
+$qux = comdat largest
+@qux = global i64 12, comdat $qux
+
+define i32 @baz() comdat $qux {
+  ret i32 12
+}
+
+$any = comdat any
+@any = global i64 6, comdat $any
+
+; CHECK: $qux = comdat largest
+; CHECK: $foo = comdat largest
+; CHECK: $any = comdat any
+
+; CHECK: @qux = global i64 12, comdat $qux
+; CHECK: @any = global i64 6, comdat $any
+; CHECK: @foo = global i64 43, comdat $foo
+; CHECK-NOT: @in_unselected_group = global i32 13, comdat $qux
+
+; CHECK: define i32 @baz() comdat $qux
+; CHECK: define i32 @bar() comdat $foo
diff --git a/test/Linker/comdat2.ll b/test/Linker/comdat2.ll
new file mode 100644
index 0000000..60c3d7c
--- /dev/null
+++ b/test/Linker/comdat2.ll
@@ -0,0 +1,7 @@
+; RUN: not llvm-link %s %p/Inputs/comdat.ll -S -o - 2>&1 | FileCheck %s
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$foo = comdat samesize
+@foo = global i32 42, comdat $foo
+; CHECK: Linking COMDATs named 'foo': invalid selection kinds!
diff --git a/test/Linker/comdat3.ll b/test/Linker/comdat3.ll
new file mode 100644
index 0000000..f0d9a48
--- /dev/null
+++ b/test/Linker/comdat3.ll
@@ -0,0 +1,5 @@
+; RUN: not llvm-link %s %p/Inputs/comdat2.ll -S -o - 2>&1 | FileCheck %s
+
+$foo = comdat largest
+@foo = global i32 43, comdat $foo
+; CHECK: Linking COMDATs named 'foo': can't do size dependent selection without DataLayout!
diff --git a/test/Linker/comdat4.ll b/test/Linker/comdat4.ll
new file mode 100644
index 0000000..50c1778
--- /dev/null
+++ b/test/Linker/comdat4.ll
@@ -0,0 +1,5 @@
+; RUN: not llvm-link %s %p/Inputs/comdat3.ll -S -o - 2>&1 | FileCheck %s
+
+$foo = comdat noduplicates
+@foo = global i64 43, comdat $foo
+; CHECK: Linking COMDATs named 'foo': noduplicates has been violated!
diff --git a/test/Linker/comdat5.ll b/test/Linker/comdat5.ll
new file mode 100644
index 0000000..011fb8c
--- /dev/null
+++ b/test/Linker/comdat5.ll
@@ -0,0 +1,7 @@
+; RUN: not llvm-link %s %p/Inputs/comdat4.ll -S -o - 2>&1 | FileCheck %s
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$foo = comdat samesize
+@foo = global i32 42, comdat $foo
+; CHECK: Linking COMDATs named 'foo': SameSize violated!
diff --git a/test/Linker/comdat6.ll b/test/Linker/comdat6.ll
new file mode 100644
index 0000000..efa5dfb
--- /dev/null
+++ b/test/Linker/comdat6.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-link %s %p/Inputs/comdat5.ll -S -o - 2>&1 | FileCheck %s
+; RUN: llvm-link %p/Inputs/comdat5.ll %s -S -o - 2>&1 | FileCheck %s
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+%struct.S = type { i32 (...)** }
+
+$"\01??_7S@@6B@" = comdat largest
+@"\01??_7S@@6B@" = linkonce_odr unnamed_addr constant [1 x i8*] [i8* bitcast (void (%struct.S*, i32)* @"\01??_GS@@UAEPAXI@Z" to i8*)], comdat $"\01??_7S@@6B@"
+
+; CHECK: @"\01??_7S@@6B@" = alias getelementptr inbounds ([2 x i8*]* @some_name, i32 0, i32 1)
+
+declare x86_thiscallcc void @"\01??_GS@@UAEPAXI@Z"(%struct.S*, i32) unnamed_addr
diff --git a/test/Linker/comdat7.ll b/test/Linker/comdat7.ll
new file mode 100644
index 0000000..c3ff3f6
--- /dev/null
+++ b/test/Linker/comdat7.ll
@@ -0,0 +1,9 @@
+; RUN: not llvm-link %s %p/Inputs/comdat5.ll -S -o - 2>&1 | FileCheck %s
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$"\01??_7S@@6B@" = comdat largest
+define void @"\01??_7S@@6B@"() {
+  ret void
+}
+; CHECK: GlobalVariable required for data dependent selection!
diff --git a/test/Linker/comdat8.ll b/test/Linker/comdat8.ll
new file mode 100644
index 0000000..21669f6
--- /dev/null
+++ b/test/Linker/comdat8.ll
@@ -0,0 +1,10 @@
+; RUN: not llvm-link %s %p/Inputs/comdat5.ll -S -o - 2>&1 | FileCheck %s
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+$"\01??_7S@@6B@" = comdat largest
+define void @some_name() {
+  ret void
+}
+@"\01??_7S@@6B@" = alias i8* inttoptr (i32 ptrtoint (void ()* @some_name to i32) to i8*)
+; CHECK: COMDAT key involves incomputable alias size.
diff --git a/test/Linker/cycle.ll b/test/Linker/cycle.ll
deleted file mode 100644
index 7d9ad2d..0000000
--- a/test/Linker/cycle.ll
+++ /dev/null
@@ -1,7 +0,0 @@
-; RUN: not llvm-link %s %S/Inputs/cycle.ll 2>&1 | FileCheck %s
-; RUN: not llvm-link %S/Inputs/cycle.ll %s 2>&1 | FileCheck %s
-
-; CHECK: Linking these modules creates an alias cycle
-
-@foo = weak global i32 0
-@bar = alias i32* @foo
diff --git a/test/Linker/unnamed-addr1-a.ll b/test/Linker/unnamed-addr1-a.ll
index adaa400..794ae98 100644
--- a/test/Linker/unnamed-addr1-a.ll
+++ b/test/Linker/unnamed-addr1-a.ll
@@ -21,6 +21,11 @@ define weak void @func-b() unnamed_addr { ret void }
 @global-f = weak global i32 42
 ; CHECK-DAG: @global-f = global i32 42
 
+@alias-a = weak global i32 42
+; CHECK-DAG: @alias-a = alias i32* @global-f
+@alias-b = weak unnamed_addr global i32 42
+; CHECK-DAG: @alias-b = unnamed_addr alias i32* @global-f
+
 declare void @func-c()
 ; CHECK-DAG: define weak void @func-c() {
 define weak void @func-d() { ret void }
@@ -38,6 +43,12 @@ define weak void @func-e() unnamed_addr { ret void }
 @global-j = weak global i32 42
 ; CHECK-DAG: @global-j = global i32 42
 
+@alias-c = weak global i32 42
+; CHECK-DAG: @alias-c = alias i32* @global-f
+@alias-d = weak unnamed_addr global i32 42
+; CHECK-DAG: @alias-d = alias i32* @global-f
+
+
 declare void @func-g()
 ; CHECK-DAG: define weak void @func-g() {
 define weak void @func-h() { ret void }
diff --git a/test/Linker/unnamed-addr1-b.ll b/test/Linker/unnamed-addr1-b.ll
index aa1507b..39a0c8b 100644
--- a/test/Linker/unnamed-addr1-b.ll
+++ b/test/Linker/unnamed-addr1-b.ll
@@ -6,6 +6,9 @@
 @global-e = unnamed_addr global i32 42
 @global-f = unnamed_addr global i32 42
 
+@alias-a =  unnamed_addr alias i32* @global-f
+@alias-b =  unnamed_addr alias i32* @global-f
+
 define weak void @func-c() unnamed_addr { ret void }
 define weak void @func-d() unnamed_addr { ret void }
 define weak void @func-e() unnamed_addr { ret void }
@@ -15,6 +18,9 @@ define weak void @func-e() unnamed_addr { ret void }
 @global-i = global i32 42
 @global-j = global i32 42
 
+@alias-c =  alias i32* @global-f
+@alias-d =  alias i32* @global-f
+
 define weak void @func-g() { ret void }
 define weak void @func-h() { ret void }
 define weak void @func-i() { ret void }