1; RUN: opt -S -passes=callsite-splitting -o - < %s | FileCheck %s --check-prefixes=CHECK,CHECK-DEBUG 2; RUN: opt -S -strip-debug -passes=callsite-splitting -o - < %s | FileCheck %s 3 4define internal i16 @bar(i16 %p1, i16 %p2) { 5 %_tmp3 = mul i16 %p2, %p1 6 ret i16 %_tmp3 7} 8 9define i16 @foo(i16 %in) { 10bb0: 11 %a = alloca i16, align 4, !DIAssignID !12 12 call void @llvm.dbg.assign(metadata i1 undef, metadata !11, metadata !DIExpression(), metadata !12, metadata ptr %a, metadata !DIExpression()), !dbg !8 13 store i16 7, ptr %a, align 4, !DIAssignID !13 14 br label %bb1 15 16bb1: 17 %0 = icmp ne i16 %in, 0 18 br i1 %0, label %bb2, label %CallsiteBB 19 20bb2: 21 br label %CallsiteBB 22 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 !8 28 call void @llvm.dbg.value(metadata i16 %c, metadata !7, metadata !DIExpression()), !dbg !8 29 call void @llvm.dbg.value(metadata !DIArgList(i16 %1, i16 %c), metadata !7, metadata !DIExpression()), !dbg !8 30 call void @llvm.dbg.value(metadata !DIArgList(i16 %c, i16 %c), metadata !7, metadata !DIExpression()), !dbg !8 31 call void @llvm.dbg.assign(metadata i16 %1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !8 32 call void @llvm.dbg.assign(metadata i16 %c, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !8 33 call void @llvm.dbg.assign(metadata i16 %1, metadata !11, metadata !DIExpression(), metadata !13, metadata ptr %p, metadata !DIExpression()), !dbg !8 34 %2 = call i16 @bar(i16 %1, i16 5) 35 ret i16 %2 36} 37 38; Function Attrs: nounwind readnone speculatable 39declare void @llvm.dbg.value(metadata, metadata, metadata) #0 40declare 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 in 62; CallSiteBB. 63 64; CHECK-LABEL: @foo 65; 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: CallsiteBB 86; CHECK: %phi.call = phi i16 [ [[TMP2]], %bb2.split ], [ [[TMP1]], %bb1.split 87 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