diff options
Diffstat (limited to 'test/Transforms/LICM/licm_preserve_dbginfo.ll')
| -rw-r--r-- | test/Transforms/LICM/licm_preserve_dbginfo.ll | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/Transforms/LICM/licm_preserve_dbginfo.ll b/test/Transforms/LICM/licm_preserve_dbginfo.ll new file mode 100644 index 0000000..e013c27 --- /dev/null +++ b/test/Transforms/LICM/licm_preserve_dbginfo.ll @@ -0,0 +1,55 @@ +; RUN: opt -licm -S <%s | FileCheck %s +; Test that licm doesn't sink/delete debug info. +define i32 @foo(i32 %a, i32 %j) nounwind { +entry: +;CHECK: entry: + call void @llvm.dbg.func.start(metadata !0) + call void @llvm.dbg.stoppoint(i32 3, i32 5, metadata !1) +;CHECK: %mul = mul i32 %j, %j + br label %for.cond + +for.cond: +;CHECK: for.cond: + %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] + %s.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ] + call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1) +; CHECK: call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1) + %cmp = icmp slt i32 %i.0, %a + br i1 %cmp, label %for.body, label %for.end + +for.body: +;CHECK: for.body: + call void @llvm.dbg.stoppoint(i32 5, i32 2, metadata !1) +;CHECK: call void @llvm.dbg.stoppoint(i32 5, i32 2, metadata !1) + %mul = mul i32 %j, %j + %add = add nsw i32 %s.0, %mul + br label %for.inc + +for.inc: +;CHECK: for.inc: + call void @llvm.dbg.stoppoint(i32 4, i32 18, metadata !1) +;CHECK: call void @llvm.dbg.stoppoint(i32 4, i32 18, metadata !1) + %inc = add nsw i32 %i.0, 1 + br label %for.cond + +for.end: + call void @llvm.dbg.stoppoint(i32 7, i32 5, metadata !1) + br label %0 + +; <label>:0 ; preds = %for.end + call void @llvm.dbg.stoppoint(i32 8, i32 1, metadata !1) + call void @llvm.dbg.region.end(metadata !0) + ret i32 %s.0 +} + +declare void @llvm.dbg.func.start(metadata) nounwind readnone + +declare void @llvm.dbg.declare({ }*, metadata) nounwind readnone + +declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone + +declare void @llvm.dbg.region.end(metadata) nounwind readnone + +!0 = metadata !{i32 458798, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", metadata !1, i32 2, metadata !2, i1 false, i1 true}; [DW_TAG_subprogram ] +!1 = metadata !{i32 458769, i32 0, i32 12, metadata !"licm.c", metadata !"/home/edwin", metadata !"clang 1.1", i1 true, i1 false, metadata !"", i32 0}; [DW_TAG_compile_unit ] +!2 = metadata !{i32 458788, metadata !1, metadata !"int", metadata !1, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5}; [DW_TAG_base_type ] |
