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1; RUN: opt -S -passes=callsite-splitting -o - < %s | FileCheck %s --check-prefixes=CHECK,CHECK-DEBUG2; RUN: opt -S -strip-debug -passes=callsite-splitting -o - < %s | FileCheck %s3 4define internal i16 @bar(i16 %p1, i16 %p2) {5 %_tmp3 = mul i16 %p2, %p16 ret i16 %_tmp37}8 9define i16 @foo(i16 %in) {10bb0:11 %a = alloca i16, align 4, !DIAssignID !1212 call void @llvm.dbg.assign(metadata i1 undef, metadata !11, metadata !DIExpression(), metadata !12, metadata ptr %a, metadata !DIExpression()), !dbg !813 store i16 7, ptr %a, align 4, !DIAssignID !1314 br label %bb115 16bb1:17 %0 = icmp ne i16 %in, 018 br i1 %0, label %bb2, label %CallsiteBB19 20bb2:21 br label %CallsiteBB22 23CallsiteBB:24 %1 = phi i16 [ 0, %bb1 ], [ 1, %bb2 ]25 %c = phi i16 [ 2, %bb1 ], [ 3, %bb2 ]26 %p = phi ptr [ %a, %bb1 ], [ %a, %bb2 ]27 call void @llvm.dbg.value(metadata i16 %1, metadata !7, metadata !DIExpression()), !dbg !828 call void @llvm.dbg.value(metadata i16 %c, metadata !7, metadata !DIExpression()), !dbg !829 call void @llvm.dbg.value(metadata !DIArgList(i16 %1, i16 %c), metadata !7, metadata !DIExpression()), !dbg !830 call void @llvm.dbg.value(metadata !DIArgList(i16 %c, i16 %c), metadata !7, metadata !DIExpression()), !dbg !831 call void @llvm.dbg.assign(metadata i16 %1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !832 call void @llvm.dbg.assign(metadata i16 %c, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !833 call void @llvm.dbg.assign(metadata i16 %1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %p, metadata !DIExpression()), !dbg !834 %2 = call i16 @bar(i16 %1, i16 5)35 ret i16 %236}37 38; Function Attrs: nounwind readnone speculatable39declare void @llvm.dbg.value(metadata, metadata, metadata) #040declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)41 42attributes #0 = { nounwind readnone speculatable }43 44!llvm.dbg.cu = !{!0}45!llvm.module.flags = !{!2, !3}46!llvm.ident = !{!4}47 48!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "My Compiler")49!1 = !DIFile(filename: "foo.c", directory: "/bar")50!2 = !{i32 2, !"Dwarf Version", i32 4}51!3 = !{i32 2, !"Debug Info Version", i32 3}52!4 = !{!"My Compiler"}53!5 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)54!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, unit: !0)55!7 = !DILocalVariable(name: "c", scope: !6, line: 5, type: !5)56!8 = !DILocation(line: 5, column: 7, scope: !6)57!11 = !DILocalVariable(name: "a", scope: !6, line: 6, type: !5)58!12 = distinct !DIAssignID()59!13 = distinct !DIAssignID()60 61; The optimization should trigger even in the presence of the dbg.value in62; CallSiteBB.63 64; CHECK-LABEL: @foo65; CHECK-LABEL: bb1.split:66; CHECK-DEBUG: #dbg_value(i16 0, ![[DBG_1:[0-9]+]], {{.*}}67; CHECK-DEBUG: #dbg_value(i16 2, ![[DBG_1]], {{.*}}68; CHECK-DEBUG: #dbg_value(!DIArgList(i16 0, i16 2), {{.*}}69; CHECK-DEBUG: #dbg_value(!DIArgList(i16 2, i16 2), {{.*}}70; CHECK-DEBUG: #dbg_assign(i16 0, ![[DBG_2:[0-9]+]], {{.*}}71; CHECK-DEBUG: #dbg_assign(i16 2, ![[DBG_2]], {{.*}}72; CHECK-DEBUG: #dbg_assign(i16 0, ![[DBG_2]], !DIExpression(), ![[ID_1:[0-9]+]], ptr %a, {{.*}}73; CHECK: [[TMP1:%[0-9]+]] = call i16 @bar(i16 0, i16 5)74 75; CHECK-LABEL: bb2.split:76; CHECK-DEBUG: #dbg_value(i16 1, ![[DBG_1]], {{.*}}77; CHECK-DEBUG: #dbg_value(i16 3, ![[DBG_1]], {{.*}}78; CHECK-DEBUG: #dbg_value(!DIArgList(i16 1, i16 3), {{.*}}79; CHECK-DEBUG: #dbg_value(!DIArgList(i16 3, i16 3), {{.*}}80; CHECK-DEBUG: #dbg_assign(i16 1, ![[DBG_2]], {{.*}}81; CHECK-DEBUG: #dbg_assign(i16 3, ![[DBG_2]], {{.*}}82; CHECK-DEBUG: #dbg_assign(i16 1, ![[DBG_2]], !DIExpression(), ![[ID_1:[0-9]+]], ptr %a, {{.*}}83; CHECK: [[TMP2:%[0-9]+]] = call i16 @bar(i16 1, i16 5)84 85; CHECK-LABEL: CallsiteBB86; CHECK: %phi.call = phi i16 [ [[TMP2]], %bb2.split ], [ [[TMP1]], %bb1.split87 88; CHECK-DEBUG-DAG: ![[DBG_1]] = !DILocalVariable(name: "c"{{.*}})89; CHECK-DEBUG-DAG: ![[DBG_2]] = !DILocalVariable(name: "a"{{.*}})90; CHECK-DEBUG-DAG: ![[ID_1]] = distinct !DIAssignID()91