diff --git a/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp b/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp --- a/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp +++ b/llvm/lib/Target/BPF/BPFISelDAGToDAG.cpp @@ -304,7 +304,7 @@ LLVM_DEBUG(dbgs() << "Replacing load of size " << size << " with constant " << val << '\n'); - SDValue NVal = CurDAG->getConstant(val, DL, MVT::i64); + SDValue NVal = CurDAG->getConstant(val, DL, LD->getValueType(0)); // After replacement, the current node is dead, we need to // go backward one step to make iterator still work diff --git a/llvm/test/CodeGen/BPF/rodata_5.ll b/llvm/test/CodeGen/BPF/rodata_5.ll new file mode 100644 --- /dev/null +++ b/llvm/test/CodeGen/BPF/rodata_5.ll @@ -0,0 +1,50 @@ +; RUN: llc < %s -march=bpfel -mattr=+alu32 -verify-machineinstrs | FileCheck %s +; RUN: llc < %s -march=bpfeb -mattr=+alu32 -verify-machineinstrs | FileCheck %s +; +; Source Code: +; struct t { +; unsigned char a; +; unsigned char b; +; unsigned char c; +; }; +; extern void foo(void *); +; int test() { +; struct t v = { +; .b = 2, +; }; +; foo(&v); +; return 0; +; } +; Compilation flag: +; clang -target bpf -O2 -S -emit-llvm t.c + +%struct.t = type { i8, i8, i8 } + +@__const.test.v = private unnamed_addr constant %struct.t { i8 0, i8 2, i8 0 }, align 1 + +; Function Attrs: nounwind +define dso_local i32 @test() local_unnamed_addr { +entry: + %v1 = alloca [3 x i8], align 1 + %v1.sub = getelementptr inbounds [3 x i8], [3 x i8]* %v1, i64 0, i64 0 + call void @llvm.lifetime.start.p0i8(i64 3, i8* nonnull %v1.sub) + call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 dereferenceable(3) %v1.sub, i8* nonnull align 1 dereferenceable(3) getelementptr inbounds (%struct.t, %struct.t* @__const.test.v, i64 0, i32 0), i64 3, i1 false) + call void @foo(i8* nonnull %v1.sub) + call void @llvm.lifetime.end.p0i8(i64 3, i8* nonnull %v1.sub) + ret i32 0 +} +; CHECK-NOT: w{{[0-9]+}} = *(u16 *) +; CHECK-NOT: w{{[0-9]+}} = *(u8 *) +; CHECK: *(u16 *)(r10 - 4) = w{{[0-9]+}} +; CHECK: *(u8 *)(r10 - 2) = w{{[0-9]+}} + +; Function Attrs: argmemonly nounwind willreturn +declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) + +; Function Attrs: argmemonly nounwind willreturn +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg) + +declare dso_local void @foo(i8*) local_unnamed_addr + +; Function Attrs: argmemonly nounwind willreturn +declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)