7696d36b4e
When cloning instructions from one basic block to another, the debug values are not remapped, in the same was as the normal instructions.
91 lines
4.5 KiB
LLVM
91 lines
4.5 KiB
LLVM
; RUN: opt -S -passes=callsite-splitting -o - < %s | FileCheck %s --check-prefixes=CHECK,CHECK-DEBUG
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; RUN: opt -S -strip-debug -passes=callsite-splitting -o - < %s | FileCheck %s
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define internal i16 @bar(i16 %p1, i16 %p2) {
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%_tmp3 = mul i16 %p2, %p1
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ret i16 %_tmp3
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}
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define i16 @foo(i16 %in) {
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bb0:
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%a = alloca i16, align 4, !DIAssignID !12
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call void @llvm.dbg.assign(metadata i1 undef, metadata !11, metadata !DIExpression(), metadata !12, metadata ptr %a, metadata !DIExpression()), !dbg !8
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store i16 7, ptr %a, align 4, !DIAssignID !13
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br label %bb1
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bb1:
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%0 = icmp ne i16 %in, 0
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br i1 %0, label %bb2, label %CallsiteBB
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bb2:
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br label %CallsiteBB
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CallsiteBB:
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%1 = phi i16 [ 0, %bb1 ], [ 1, %bb2 ]
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%c = phi i16 [ 2, %bb1 ], [ 3, %bb2 ]
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%p = phi ptr [ %a, %bb1 ], [ %a, %bb2 ]
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call void @llvm.dbg.value(metadata i16 %1, metadata !7, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.value(metadata i16 %c, metadata !7, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.value(metadata !DIArgList(i16 %1, i16 %c), metadata !7, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.value(metadata !DIArgList(i16 %c, i16 %c), metadata !7, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.assign(metadata i16 %1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.assign(metadata i16 %c, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !8
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call void @llvm.dbg.assign(metadata i16 %1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %p, metadata !DIExpression()), !dbg !8
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%2 = call i16 @bar(i16 %1, i16 5)
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ret i16 %2
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #0
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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attributes #0 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!llvm.ident = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "My Compiler")
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!1 = !DIFile(filename: "foo.c", directory: "/bar")
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!2 = !{i32 2, !"Dwarf Version", i32 4}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{!"My Compiler"}
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!5 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, unit: !0)
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!7 = !DILocalVariable(name: "c", scope: !6, line: 5, type: !5)
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!8 = !DILocation(line: 5, column: 7, scope: !6)
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!11 = !DILocalVariable(name: "a", scope: !6, line: 6, type: !5)
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!12 = distinct !DIAssignID()
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!13 = distinct !DIAssignID()
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; The optimization should trigger even in the presence of the dbg.value in
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; CallSiteBB.
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; CHECK-LABEL: @foo
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; CHECK-LABEL: bb1.split:
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata i16 0, metadata ![[DBG_1:[0-9]+]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata i16 2, metadata ![[DBG_1]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata !DIArgList(i16 0, i16 2), {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata !DIArgList(i16 2, i16 2), {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.assign(metadata i16 0, metadata ![[DBG_2:[0-9]+]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.assign(metadata i16 2, metadata ![[DBG_2]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.assign(metadata i16 0, metadata ![[DBG_2]], metadata !DIExpression(), metadata ![[ID_1:[0-9]+]], metadata ptr %a, {{.*}}
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; CHECK: [[TMP1:%[0-9]+]] = call i16 @bar(i16 0, i16 5)
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; CHECK-LABEL: bb2.split:
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata i16 1, metadata ![[DBG_1]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata i16 3, metadata ![[DBG_1]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata !DIArgList(i16 1, i16 3), {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.value(metadata !DIArgList(i16 3, i16 3), {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.assign(metadata i16 1, metadata ![[DBG_2]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.assign(metadata i16 3, metadata ![[DBG_2]], {{.*}}
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; CHECK-DEBUG: call void @llvm.dbg.assign(metadata i16 1, metadata ![[DBG_2]], metadata !DIExpression(), metadata ![[ID_1:[0-9]+]], metadata ptr %a, {{.*}}
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; CHECK: [[TMP2:%[0-9]+]] = call i16 @bar(i16 1, i16 5)
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; CHECK-LABEL: CallsiteBB
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; CHECK: %phi.call = phi i16 [ [[TMP2]], %bb2.split ], [ [[TMP1]], %bb1.split
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; CHECK-DEBUG-DAG: ![[DBG_1]] = !DILocalVariable(name: "c"{{.*}})
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; CHECK-DEBUG-DAG: ![[DBG_2]] = !DILocalVariable(name: "a"{{.*}})
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; CHECK-DEBUG-DAG: ![[ID_1]] = distinct !DIAssignID()
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