1; RUN: llc < %s -march=bpfel -mattr=+alu32 -verify-machineinstrs | FileCheck %s 2; RUN: llc < %s -march=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(void *); 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 %v1.sub = getelementptr inbounds [3 x i8], [3 x i8]* %v1, i64 0, i64 0 30 call void @llvm.lifetime.start.p0i8(i64 3, i8* nonnull %v1.sub) 31 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) 32 call void @foo(i8* nonnull %v1.sub) 33 call void @llvm.lifetime.end.p0i8(i64 3, i8* nonnull %v1.sub) 34 ret i32 0 35} 36; CHECK-NOT: w{{[0-9]+}} = *(u16 *) 37; CHECK-NOT: w{{[0-9]+}} = *(u8 *) 38; CHECK: *(u16 *)(r10 - 4) = w{{[0-9]+}} 39; CHECK: *(u8 *)(r10 - 2) = w{{[0-9]+}} 40 41; Function Attrs: argmemonly nounwind willreturn 42declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) 43 44; Function Attrs: argmemonly nounwind willreturn 45declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg) 46 47declare dso_local void @foo(i8*) local_unnamed_addr 48 49; Function Attrs: argmemonly nounwind willreturn 50declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) 51