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1; RUN: llc -mtriple aarch64-linux-gnu -emit-call-site-info -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s2 3; Based on the following C reproducer:4;5; extern void callee(float);6;7; void foo(float param) {8; callee(param);9; }10 11; Verify that a call site value using DW_OP_GNU_entry_value(DW_OP_regx B0) is12; emitted for the float parameter. Previously the entry value's multi-byte13; DW_OP_regx expression would be truncated.14 15; CHECK: DW_TAG_GNU_call_site_parameter16; CHECK-NEXT: DW_AT_location (DW_OP_regx B0)17; CHECK-NEXT: DW_AT_GNU_call_site_value (DW_OP_GNU_entry_value(DW_OP_regx B0)18 19target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"20target triple = "aarch64"21 22; Function Attrs: nounwind23define dso_local void @foo(float %param) local_unnamed_addr !dbg !12 {24entry:25 tail call void @callee(float %param), !dbg !1326 ret void, !dbg !1427}28 29declare !dbg !4 dso_local void @callee(float) local_unnamed_addr30 31!llvm.dbg.cu = !{!0}32!llvm.module.flags = !{!8, !9, !10}33!llvm.ident = !{!11}34 35!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None)36!1 = !DIFile(filename: "float.c", directory: "/")37!2 = !{}38!3 = !{!4}39!4 = !DISubprogram(name: "callee", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)40!5 = !DISubroutineType(types: !6)41!6 = !{null, !7}42!7 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)43!8 = !{i32 7, !"Dwarf Version", i32 4}44!9 = !{i32 2, !"Debug Info Version", i32 3}45!10 = !{i32 1, !"wchar_size", i32 4}46!11 = !{!"clang version 11.0.0 "}47!12 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !5, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)48!13 = !DILocation(line: 4, scope: !12)49!14 = !DILocation(line: 5, scope: !12)50