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authorEli Friedman <eli.friedman@gmail.com>2011-05-27 22:32:55 +0000
committerEli Friedman <eli.friedman@gmail.com>2011-05-27 22:32:55 +0000
commit460980d3b9d045288041bf8b826899795c60ca1d (patch)
tree2174d7b3015f0a4b6dd7408b1ac220e9d021973e
parentb0dd6702ab5e7f53a4bdab5a3371285ad2a4b20b (diff)
Add unnamed_addr to internal globals which are only used as an operand to memcpy. (Spotted by looking at IR.)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132226 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/CodeGen/CGDecl.cpp1
-rw-r--r--test/CodeGen/decl.c4
-rw-r--r--test/CodeGen/string-literal-short-wstring.c2
-rw-r--r--test/CodeGen/string-literal.c4
4 files changed, 6 insertions, 5 deletions
diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp
index 0e1054affd..9991b302b2 100644
--- a/lib/CodeGen/CGDecl.cpp
+++ b/lib/CodeGen/CGDecl.cpp
@@ -742,6 +742,7 @@ void CodeGenFunction::EmitAutoVarInit(const AutoVarEmission &emission) {
llvm::GlobalValue::InternalLinkage,
constant, Name, 0, false, 0);
GV->setAlignment(alignment.getQuantity());
+ GV->setUnnamedAddr(true);
llvm::Value *SrcPtr = GV;
if (SrcPtr->getType() != BP)
diff --git a/test/CodeGen/decl.c b/test/CodeGen/decl.c
index 7a9971ee18..29520d77ff 100644
--- a/test/CodeGen/decl.c
+++ b/test/CodeGen/decl.c
@@ -1,11 +1,11 @@
// RUN: %clang_cc1 -w -emit-llvm < %s | FileCheck %s
// CHECK: @test1.x = internal constant [12 x i32] [i32 1
-// CHECK: @test2.x = internal constant [13 x i32] [i32 1,
+// CHECK: @test2.x = internal unnamed_addr constant [13 x i32] [i32 1,
// CHECK: @test5w = global %0 { i32 2, [4 x i8] undef }
// CHECK: @test5y = global %union.test5u { double 7.300000e+0{{[0]*}}1 }
-// CHECK: @test6.x = internal constant %struct.SelectDest { i8 1, i8 2, i32 3, i32 0 }
+// CHECK: @test6.x = internal unnamed_addr constant %struct.SelectDest { i8 1, i8 2, i32 3, i32 0 }
// CHECK: @test7 = global [2 x %struct.test7s] [%struct.test7s { i32 1, i32 2 }, %struct.test7s { i32 4, i32 0 }]
diff --git a/test/CodeGen/string-literal-short-wstring.c b/test/CodeGen/string-literal-short-wstring.c
index 8c2e412f22..ce2990492a 100644
--- a/test/CodeGen/string-literal-short-wstring.c
+++ b/test/CodeGen/string-literal-short-wstring.c
@@ -3,7 +3,7 @@
int main() {
// This should convert to utf8.
- // CHECK: internal constant [10 x i8] c"\E1\84\A0\C8\A0\F4\82\80\B0\00", align 1
+ // CHECK: internal unnamed_addr constant [10 x i8] c"\E1\84\A0\C8\A0\F4\82\80\B0\00", align 1
char b[10] = "\u1120\u0220\U00102030";
// CHECK: private unnamed_addr constant [6 x i8] c"A\00B\00\00\00"
diff --git a/test/CodeGen/string-literal.c b/test/CodeGen/string-literal.c
index b5fa345bad..cc6c0943d9 100644
--- a/test/CodeGen/string-literal.c
+++ b/test/CodeGen/string-literal.c
@@ -1,11 +1,11 @@
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
int main() {
- // CHECK: internal constant [10 x i8] c"abc\00\00\00\00\00\00\00", align 1
+ // CHECK: internal unnamed_addr constant [10 x i8] c"abc\00\00\00\00\00\00\00", align 1
char a[10] = "abc";
// This should convert to utf8.
- // CHECK: internal constant [10 x i8] c"\E1\84\A0\C8\A0\F4\82\80\B0\00", align 1
+ // CHECK: internal unnamed_addr constant [10 x i8] c"\E1\84\A0\C8\A0\F4\82\80\B0\00", align 1
char b[10] = "\u1120\u0220\U00102030";
// CHECK: private unnamed_addr constant [12 x i8] c"A\00\00\00B\00\00\00\00\00\00\00", align 1