1 ; RUN: opt -S -callsite-splitting -o - < %s | FileCheck %s
2 ; RUN: opt -S -strip-debug -callsite-splitting -o - < %s | FileCheck %s
4 define internal i16 @bar(i16 %p1, i16 %p2) {
5 %_tmp3 = mul i16 %p2, %p1
9 define i16 @foo(i16 %in) {
14 %0 = icmp ne i16 %in, 0
15 br i1 %0, label %bb2, label %CallsiteBB
21 %1 = phi i16 [ 0, %bb1 ], [ 1, %bb2 ]
22 %c = phi i16 [ 2, %bb1 ], [ 3, %bb2 ]
23 call void @llvm.dbg.value(metadata i16 %c, metadata !7, metadata !DIExpression()), !dbg !8
24 %2 = call i16 @bar(i16 %1, i16 5)
28 ; Function Attrs: nounwind readnone speculatable
29 declare void @llvm.dbg.value(metadata, metadata, metadata) #0
31 attributes #0 = { nounwind readnone speculatable }
34 !llvm.module.flags = !{!2, !3}
37 !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "My Compiler")
38 !1 = !DIFile(filename: "foo.c", directory: "/bar")
39 !2 = !{i32 2, !"Dwarf Version", i32 4}
40 !3 = !{i32 2, !"Debug Info Version", i32 3}
41 !4 = !{!"My Compiler"}
42 !5 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
43 !6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, unit: !0)
44 !7 = !DILocalVariable(name: "c", scope: !6, line: 5, type: !5)
45 !8 = !DILocation(line: 5, column: 7, scope: !6)
47 ; The optimization should trigger even in the presence of the dbg.value in
51 ; CHECK-LABEL: bb1.split:
52 ; CHECK: [[TMP1:%[0-9]+]] = call i16 @bar(i16 0, i16 5)
53 ; CHECK-LABEL: bb2.split:
54 ; CHECK: [[TMP2:%[0-9]+]] = call i16 @bar(i16 1, i16 5)
55 ; CHECK-LABEL: CallsiteBB
56 ; CHECK: %phi.call = phi i16 [ [[TMP2]], %bb2.split ], [ [[TMP1]], %bb1.split