if (Encoding == dwarf::DW_ATE_signed)
emitLegacySExt(PrevConvertOp->getArg(0));
else if (Encoding == dwarf::DW_ATE_unsigned)
- emitLegacyZExt(PrevConvertOp->getArg(0), BitSize);
+ emitLegacyZExt(PrevConvertOp->getArg(0));
PrevConvertOp = None;
} else {
PrevConvertOp = Op;
emitOp(dwarf::DW_OP_or);
}
-void DwarfExpression::emitLegacyZExt(unsigned FromBits, unsigned ToBits) {
- if (FromBits < 64) {
- // X & ((1 << FromBits) - 1)
- emitOp(dwarf::DW_OP_constu);
- emitUnsigned((1ULL << FromBits) - 1);
- emitOp(dwarf::DW_OP_and);
- } else {
- addOpPiece(FromBits, 0);
- emitOp(dwarf::DW_OP_lit0);
- addOpPiece(ToBits - FromBits, FromBits);
- }
+void DwarfExpression::emitLegacyZExt(unsigned FromBits) {
+ // (X & (1 << FromBits - 1))
+ emitOp(dwarf::DW_OP_constu);
+ emitUnsigned((1ULL << FromBits) - 1);
+ emitOp(dwarf::DW_OP_and);
}
void DwarfExpression::addWasmLocation(unsigned Index, uint64_t Offset) {
+++ /dev/null
-; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
-
-; CHECK: DW_AT_location (DW_OP_breg5 RDI+0, DW_OP_piece 0x8, DW_OP_lit0, DW_OP_bit_piece 0x40 0x40)
-
-target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-define void @t(i64 %x) !dbg !6 {
- call void @llvm.dbg.value(metadata i64 %x, metadata !9,
- metadata !DIExpression(DW_OP_LLVM_convert, 64, DW_ATE_unsigned,
- DW_OP_LLVM_convert, 128, DW_ATE_unsigned)), !dbg !11
- ret void, !dbg !11
-}
-
-declare void @llvm.dbg.value(metadata, metadata, metadata)
-
-!llvm.dbg.cu = !{!0}
-!llvm.debugify = !{!3, !4}
-!llvm.module.flags = !{!5}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
-!1 = !DIFile(filename: "legacy-zext.ll", directory: "/")
-!2 = !{}
-!3 = !{i64 2}
-!4 = !{i64 1}
-!5 = !{i64 2, !"Debug Info Version", i32 3}
-!6 = distinct !DISubprogram(name: "t", linkageName: "t", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
-!7 = !DISubroutineType(types: !2)
-!8 = !{!9}
-!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
-!10 = !DIBasicType(name: "ty128", size: 128, encoding: DW_ATE_unsigned)
-!11 = !DILocation(line: 1, column: 1, scope: !6)