diff options
| author | Yaxun Liu <Yaxun.Liu@amd.com> | 2018-05-14 19:20:12 +0000 |
|---|---|---|
| committer | Yaxun Liu <Yaxun.Liu@amd.com> | 2018-05-14 19:20:12 +0000 |
| commit | 20ceb1b4d949a51ce2ea754880bd781746903c15 (patch) | |
| tree | 31f14458aeeea213ec60ef189775bb5d3c1b6da8 /test/CodeGenCXX/amdgcn-string-literal.cpp | |
| parent | b8a4da9becf7fb8eb153b992455983d28bc11ffd (diff) | |
CodeGen: Emit string literal in constant address space
Some targets have constant address space (e.g. amdgcn). For them string literal should be
emitted in constant address space then casted to default address space.
Differential Revision: https://reviews.llvm.org/D46643
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@332279 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/amdgcn-string-literal.cpp')
| -rw-r--r-- | test/CodeGenCXX/amdgcn-string-literal.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGenCXX/amdgcn-string-literal.cpp b/test/CodeGenCXX/amdgcn-string-literal.cpp new file mode 100644 index 0000000000..7fd05351c8 --- /dev/null +++ b/test/CodeGenCXX/amdgcn-string-literal.cpp @@ -0,0 +1,28 @@ +// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -emit-llvm %s -o - | FileCheck %s + +// CHECK: @.str = private unnamed_addr addrspace(4) constant [6 x i8] c"g_str\00", align 1 +// CHECK: @g_str = addrspace(1) global i8* addrspacecast (i8 addrspace(4)* getelementptr inbounds ([6 x i8], [6 x i8] addrspace(4)* @.str, i32 0, i32 0) to i8*), align 8 +// CHECK: @g_array = addrspace(1) global [8 x i8] c"g_array\00", align 1 +// CHECK: @.str.1 = private unnamed_addr addrspace(4) constant [6 x i8] c"l_str\00", align 1 +// CHECK: @_ZZ1fvE7l_array = private unnamed_addr addrspace(4) constant [8 x i8] c"l_array\00", align 1 + +const char* g_str = "g_str"; +char g_array[] = "g_array"; + +void g(const char* p); + +// CHECK-LABEL: define void @_Z1fv() +void f() { + const char* l_str = "l_str"; + + // CHECK: call void @llvm.memcpy.p0i8.p4i8.i64 + char l_array[] = "l_array"; + + g(g_str); + g(g_array); + g(l_str); + g(l_array); + + const char* p = g_str; + g(p); +} |