1 ; RUN: llc -O0 < %s -mtriple=x86_64-unknown | FileCheck %s 2 ; This was extracted from a swift debugger stepping testcase and checks that the 3 ; fold (zext (load x)) -> (zext (truncate (zextload x))) 4 ; rule propagates the SDLoc of the load to the zextload. 5 6 ; CHECK: .loc {{.*}} main.swift:100 7 ; CHECK-NOT: .loc 8 ; CHECK: .loc {{.*}} main.swift:200 9 ; CHECK-NOT: .loc 10 ; CHECK: .loc {{.*}} main.swift:300 11 ; CHECK-NOT: .loc 12 declare void @foo(double) 13 14 define i32 @zext_load(i32* %arg) !dbg !30 { 15 %1 = bitcast i32* %arg to i8* 16 %2 = getelementptr inbounds i8, i8* %1, i32 1 17 %3 = load i8, i8* %2, align 1, !dbg !100 18 %4 = uitofp i8 %3 to double, !dbg !200 19 call void @foo(double %4), !dbg !200 20 %5 = zext i8 %3 to i32, !dbg !300 21 ret i32 %5 22 } 23 !llvm.dbg.cu = !{!1} 24 !llvm.module.flags = !{!0} 25 26 !0 = !{i32 2, !"Debug Info Version", i32 3} 27 !1 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !3, isOptimized: false, emissionKind: FullDebug) 28 !2 = !DIModule(scope: null, name: "test", includePath: "", isysroot: "/") 29 !3 = !DIFile(filename: "main.swift", directory: "/") 30 31 !30 = distinct !DISubprogram(name: "main", scope: !2, file: !3, line: 1, type: !31, isLocal: false, isDefinition: true, isOptimized: false, unit: !1) 32 !31 = !DISubroutineType(types: !32) 33 !32 = !{} 34 35 !100 = !DILocation(line: 100, scope: !30) 36 !200 = !DILocation(line: 200, scope: !30) 37 !300 = !DILocation(line: 300, scope: !30) 38
