forked from OSchip/llvm-project
56 lines
2.3 KiB
C
56 lines
2.3 KiB
C
// RUN: %clang_cc1 -fblocks -debug-info-kind=limited -emit-llvm -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -DDEAD_CODE -fblocks -debug-info-kind=limited -emit-llvm -o - %s | FileCheck %s
|
|
|
|
typedef void (^BlockTy)();
|
|
void escapeFunc(BlockTy);
|
|
typedef void (^BlockTy)();
|
|
void noEscapeFunc(__attribute__((noescape)) BlockTy);
|
|
|
|
// Verify that the desired DIExpression are generated for escaping (i.e, not
|
|
// 'noescape') blocks.
|
|
void test_escape_func() {
|
|
// CHECK-LABEL: void @test_escape_func
|
|
// CHECK: call void @llvm.dbg.declare({{.*}}metadata ![[ESCAPE_VAR:[0-9]+]], metadata !DIExpression(DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}){{.*}})
|
|
__block int escape_var;
|
|
// Blocks in dead code branches still capture __block variables.
|
|
#ifdef DEAD_CODE
|
|
if (0)
|
|
#endif
|
|
escapeFunc(^{ (void)escape_var; });
|
|
}
|
|
|
|
// Verify that the desired DIExpression are generated for noescape blocks.
|
|
void test_noescape_func() {
|
|
// CHECK-LABEL: void @test_noescape_func
|
|
// CHECK: call void @llvm.dbg.declare({{.*}}metadata ![[NOESCAPE_VAR:[0-9]+]], metadata !DIExpression())
|
|
__block int noescape_var;
|
|
noEscapeFunc(^{ (void)noescape_var; });
|
|
}
|
|
|
|
// Verify that the desired DIExpression are generated for blocks.
|
|
void test_local_block() {
|
|
// CHECK-LABEL: void @test_local_block
|
|
// CHECK: call void @llvm.dbg.declare({{.*}}metadata ![[BLOCK_VAR:[0-9]+]], metadata !DIExpression(DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}){{.*}})
|
|
__block int block_var;
|
|
|
|
// CHECK-LABEL: @__test_local_block_block_invoke
|
|
// CHECK: call void @llvm.dbg.declare({{.*}}!DIExpression(DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}){{.*}})
|
|
^ { block_var = 1; }();
|
|
}
|
|
|
|
// Verify that the desired DIExpression are generated for __block vars not used
|
|
// in any block.
|
|
void test_unused() {
|
|
// CHECK-LABEL: void @test_unused
|
|
// CHECK: call void @llvm.dbg.declare({{.*}}metadata ![[UNUSED_VAR:[0-9]+]], metadata !DIExpression())
|
|
__block int unused_var;
|
|
// Use i (not inside a block).
|
|
++unused_var;
|
|
}
|
|
|
|
// CHECK: ![[ESCAPE_VAR]] = !DILocalVariable(name: "escape_var"
|
|
// CHECK: ![[NOESCAPE_VAR]] = !DILocalVariable(name: "noescape_var"
|
|
// CHECK: ![[BLOCK_VAR]] = !DILocalVariable(name: "block_var"
|
|
// CHECK: ![[UNUSED_VAR]] = !DILocalVariable(name: "unused_var"
|
|
|