test/Transforms/GVN/load-through-select-dbg.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
; RUN: opt < %s -passes=gvn -gvn-max-num-visited-insts=4 -S | FileCheck %s

declare void @llvm.dbg.declare(metadata, metadata, metadata)

define i32 @foo(ptr %a, ptr %b) {
; CHECK-LABEL: define i32 @foo(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]]) {
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[A]], align 4
; CHECK-NEXT:    call void @llvm.dbg.declare(metadata ptr undef, metadata [[META4:![0-9]+]], metadata !DIExpression()), !dbg [[DBG10:![0-9]+]]
; CHECK-NEXT:    [[TMP1:%.*]] = load i32, ptr [[B]], align 4
; CHECK-NEXT:    [[COND:%.*]] = icmp slt i32 [[TMP0]], [[TMP1]]
; CHECK-NEXT:    [[TMP2:%.*]] = select i1 [[COND]], i32 [[TMP0]], i32 [[TMP1]]
; CHECK-NEXT:    [[PTR:%.*]] = select i1 [[COND]], ptr [[A]], ptr [[B]]
; CHECK-NEXT:    ret i32 [[TMP2]]
;
entry:
  %0 = load i32, ptr %a, align 4
  call void @llvm.dbg.declare(metadata ptr undef, metadata !46, metadata !DIExpression()), !dbg !40
  %1 = load i32, ptr %b, align 4
  %cond = icmp slt i32 %0, %1
  %ptr = select i1 %cond, ptr %a, ptr %b
  %res = load i32, ptr %ptr, align 4
  ret i32 %res
}

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!35, !36}

!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)
!1 = !DIFile(filename: "bbi-78272.c", directory: "/tmp")
!5 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)

!35 = !{i32 7, !"Dwarf Version", i32 4}
!36 = !{i32 2, !"Debug Info Version", i32 3}
!40 = !DILocation(line: 15, column: 7, scope: !41)
!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)
!42 = !DISubroutineType(types: !43)
!43 = !{!5}
!45 = !{!46}
!46 = !DILocalVariable(name: "t", scope: !41, file: !1, line: 15, type: !5)