1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
2 ; RUN: opt < %s -passes=gvn -gvn-max-num-visited-insts=4 -S | FileCheck %s
4 declare void @llvm.dbg.declare(metadata, metadata, metadata)
6 define i32 @foo(ptr %a, ptr %b) {
7 ; CHECK-LABEL: define i32 @foo(
8 ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) {
10 ; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 4
11 ; CHECK-NEXT: #dbg_declare(ptr undef, [[META4:![0-9]+]], !DIExpression(), [[META10:![0-9]+]])
12 ; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[B]], align 4
13 ; CHECK-NEXT: [[COND:%.*]] = icmp slt i32 [[TMP0]], [[TMP1]]
14 ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[COND]], i32 [[TMP0]], i32 [[TMP1]]
15 ; CHECK-NEXT: [[PTR:%.*]] = select i1 [[COND]], ptr [[A]], ptr [[B]]
16 ; CHECK-NEXT: ret i32 [[TMP2]]
19 %0 = load i32, ptr %a, align 4
20 call void @llvm.dbg.declare(metadata ptr undef, metadata !46, metadata !DIExpression()), !dbg !40
21 %1 = load i32, ptr %b, align 4
22 %cond = icmp slt i32 %0, %1
23 %ptr = select i1 %cond, ptr %a, ptr %b
24 %res = load i32, ptr %ptr, align 4
29 !llvm.module.flags = !{!35, !36}
31 !0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 17.0.0.prerel", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
32 !1 = !DIFile(filename: "bbi-78272.c", directory: "/tmp")
33 !5 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
35 !35 = !{i32 7, !"Dwarf Version", i32 4}
36 !36 = !{i32 2, !"Debug Info Version", i32 3}
37 !40 = !DILocation(line: 15, column: 7, scope: !41)
38 !41 = distinct !DISubprogram(name: "x", scope: !1, file: !1, line: 14, type: !42, scopeLine: 14, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !45)
39 !42 = !DISubroutineType(types: !43)
42 !46 = !DILocalVariable(name: "t", scope: !41, file: !1, line: 15, type: !5)