// No-op casts and zexts are irrelevant for debug info.
if (CI->isNoopCast(DL) || isa<ZExtInst>(&I))
return SrcDIExpr;
-
- Type *Type = CI->getType();
- // Casts other than Trunc or SExt to scalar types cannot be salvaged.
- if (Type->isVectorTy() || (!isa<TruncInst>(&I) && !isa<SExtInst>(&I)))
- return nullptr;
-
- Value *FromValue = CI->getOperand(0);
- unsigned FromTypeBitSize = FromValue->getType()->getScalarSizeInBits();
-
- unsigned ToTypeBitSize = Type->getScalarSizeInBits();
-
- // The result of the cast will be sign extended iff the instruction is a
- // SExt; signedness is otherwise irrelevant on the expression stack.
- unsigned Encoding =
- isa<SExtInst>(&I) ? dwarf::DW_ATE_signed : dwarf::DW_ATE_unsigned;
-
- return applyOps({dwarf::DW_OP_LLVM_convert, FromTypeBitSize, Encoding,
- dwarf::DW_OP_LLVM_convert, ToTypeBitSize, Encoding});
- }
-
- if (auto *GEP = dyn_cast<GetElementPtrInst>(&I)) {
+ return nullptr;
+ } else if (auto *GEP = dyn_cast<GetElementPtrInst>(&I)) {
unsigned BitWidth =
M.getDataLayout().getIndexSizeInBits(GEP->getPointerAddressSpace());
// Rewrite a constant GEP into a DIExpression.
+++ /dev/null
-; RUN: opt %s -debugify -early-cse -S | FileCheck %s
-define i32 @foo(i64 %nose, i32 %more) {
-; CHECK-LABEL: @foo(
-; CHECK: call void @llvm.dbg.value(metadata i64 %nose, metadata [[V1:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_convert, 64, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned
-; CHECK: call void @llvm.dbg.value(metadata i64 %nose.shift, metadata [[V2:![0-9]+]]
-; CHECK: call void @llvm.dbg.value(metadata i64 %nose.shift, metadata [[V3:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_convert, 64, DW_ATE_unsigned, DW_OP_LLVM_convert, 32, DW_ATE_unsigned
-
-entry:
- %nose.trunc = trunc i64 %nose to i32
- %nose.shift = lshr i64 %nose, 32
- %nose.trunc.2 = trunc i64 %nose.shift to i32
- %add = add nsw i32 %more, 1
- ret i32 %add
-}
-
-!llvm.module.flags = !{!0, !1}
-!llvm.ident = !{!2}
-
-!0 = !{i32 1, !"wchar_size", i32 2}
-!1 = !{i32 7, !"PIC Level", i32 2}
-!2 = !{!"clang version 9.0.0 "}
-
-; CHECK: [[V1]] = !DILocalVariable(
-; CHECK: [[V2]] = !DILocalVariable(
-; CHECK: [[V3]] = !DILocalVariable(
; we preserve the debug information in the resulting
; instruction.
; DBGINFO-LABEL: @mul(
-; DBGINFO-NEXT: call void @llvm.dbg.value(metadata i32 %x
-; DBGINFO-NEXT: call void @llvm.dbg.value(metadata i32 %y
; DBGINFO-NEXT: [[C:%.*]] = mul i32 {{.*}}
; DBGINFO-NEXT: [[D:%.*]] = and i32 {{.*}}
; DBGINFO-NEXT: call void @llvm.dbg.value(metadata i32 [[C]]