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https://github.com/c64scene-ar/llvm-6502.git
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9289ae85b4
For now the metadata of sinked/hoisted instructions is still wrong, but that'll be fixed when instructions will have debug metadata directly attached. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83786 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
2.0 KiB
LLVM
56 lines
2.0 KiB
LLVM
; RUN: opt -licm -S <%s | FileCheck %s
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; Test that licm doesn't sink/delete debug info.
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define i32 @foo(i32 %a, i32 %j) nounwind {
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entry:
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;CHECK: entry:
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call void @llvm.dbg.func.start(metadata !0)
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call void @llvm.dbg.stoppoint(i32 3, i32 5, metadata !1)
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;CHECK: %mul = mul i32 %j, %j
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br label %for.cond
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for.cond:
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;CHECK: for.cond:
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%s.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
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call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1)
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; CHECK: call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1)
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%cmp = icmp slt i32 %i.0, %a
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br i1 %cmp, label %for.body, label %for.end
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for.body:
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;CHECK: for.body:
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call void @llvm.dbg.stoppoint(i32 5, i32 2, metadata !1)
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;CHECK: call void @llvm.dbg.stoppoint(i32 5, i32 2, metadata !1)
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%mul = mul i32 %j, %j
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%add = add nsw i32 %s.0, %mul
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br label %for.inc
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for.inc:
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;CHECK: for.inc:
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call void @llvm.dbg.stoppoint(i32 4, i32 18, metadata !1)
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;CHECK: call void @llvm.dbg.stoppoint(i32 4, i32 18, metadata !1)
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end:
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call void @llvm.dbg.stoppoint(i32 7, i32 5, metadata !1)
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br label %0
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; <label>:0 ; preds = %for.end
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call void @llvm.dbg.stoppoint(i32 8, i32 1, metadata !1)
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call void @llvm.dbg.region.end(metadata !0)
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ret i32 %s.0
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}
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declare void @llvm.dbg.func.start(metadata) nounwind readnone
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declare void @llvm.dbg.declare({ }*, metadata) nounwind readnone
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declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
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declare void @llvm.dbg.region.end(metadata) nounwind readnone
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!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 ]
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!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 ]
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!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 ]
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