1; RUN: llc < %s -mtriple=bpfel -mattr=+alu32 -verify-machineinstrs | FileCheck %s 2; RUN: llc < %s -mtriple=bpfeb -mattr=+alu32 -verify-machineinstrs | FileCheck %s 3; 4; Source Code: 5; struct t { 6; unsigned char a; 7; unsigned char b; 8; unsigned char c; 9; }; 10; extern void foo(ptr); 11; int test() { 12; struct t v = { 13; .b = 2, 14; }; 15; foo(&v); 16; return 0; 17; } 18; Compilation flag: 19; clang -target bpf -O2 -S -emit-llvm t.c 20 21%struct.t = type { i8, i8, i8 } 22 23@__const.test.v = private unnamed_addr constant %struct.t { i8 0, i8 2, i8 0 }, align 1 24 25; Function Attrs: nounwind 26define dso_local i32 @test() local_unnamed_addr { 27entry: 28 %v1 = alloca [3 x i8], align 1 29 call void @llvm.lifetime.start.p0(i64 3, ptr nonnull %v1) 30 call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 dereferenceable(3) %v1, ptr nonnull align 1 dereferenceable(3) @__const.test.v, i64 3, i1 false) 31 call void @foo(ptr nonnull %v1) 32 call void @llvm.lifetime.end.p0(i64 3, ptr nonnull %v1) 33 ret i32 0 34} 35; CHECK-NOT: w{{[0-9]+}} = *(u16 *) 36; CHECK-NOT: w{{[0-9]+}} = *(u8 *) 37; CHECK: *(u16 *)(r10 - 4) = w{{[0-9]+}} 38; CHECK: *(u8 *)(r10 - 2) = w{{[0-9]+}} 39 40; Function Attrs: argmemonly nounwind willreturn 41declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) 42 43; Function Attrs: argmemonly nounwind willreturn 44declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) 45 46declare dso_local void @foo(ptr) local_unnamed_addr 47 48; Function Attrs: argmemonly nounwind willreturn 49declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) 50