1; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -o - | FileCheck %s 2 3; We are testing that a value in a 16 bit register gets reported as 4; being in its superregister. 5 6; CHECK: .byte 80 # super-register DW_OP_reg0 7; CHECK-NEXT: .byte 147 # DW_OP_piece 8; CHECK-NEXT: .byte 2 # 2 9 10define i16 @f(i16 signext %zzz) nounwind { 11entry: 12 call void @llvm.dbg.value(metadata i16 %zzz, i64 0, metadata !0, metadata !{!"0x102"}) 13 %conv = sext i16 %zzz to i32, !dbg !7 14 %conv1 = trunc i32 %conv to i16 15 ret i16 %conv1 16} 17 18declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone 19 20!llvm.dbg.cu = !{!3} 21!llvm.module.flags = !{!11} 22!9 = !{!1} 23 24!0 = !{!"0x101\00zzz\0016777219\000", !1, !2, !6} ; [ DW_TAG_arg_variable ] 25!1 = !{!"0x2e\00f\00f\00\003\000\001\000\006\00256\000\003", !10, !2, !4, null, i16 (i16)* @f, null, null, null} ; [ DW_TAG_subprogram ] [line 3] [def] [f] 26!2 = !{!"0x29", !10} ; [ DW_TAG_file_type ] 27!3 = !{!"0x11\0012\00clang version 3.0 ()\000\00\000\00\001", !10, !5, !5, !9, null, null} ; [ DW_TAG_compile_unit ] 28!4 = !{!"0x15\00\000\000\000\000\000\000", !10, !2, null, !5, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 29!5 = !{null} 30!6 = !{!"0x24\00short\000\0016\0016\000\000\005", null, !3} ; [ DW_TAG_base_type ] 31!7 = !MDLocation(line: 4, column: 22, scope: !8) 32!8 = !{!"0xb\003\0019\000", !10, !1} ; [ DW_TAG_lexical_block ] 33!10 = !{!"/home/espindola/llvm/test.c", !"/home/espindola/tmpfs/build"} 34!11 = !{i32 1, !"Debug Info Version", i32 2} 35