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1; RUN: llc -mtriple=aarch64-linux-gnu -filetype=obj -o - %s | llvm-objdump -d - | FileCheck %s2 3; The encoding of lsb -> immr in the CGed bitfield instructions was wrong at one4; point, in the edge case where lsb = 0. Just make sure.5 6define void @test_bfi0(ptr %existing, ptr %new) {7; CHECK: bfxil {{w[0-9]+}}, {{w[0-9]+}}, #0, #188 9 %oldval = load volatile i32, ptr %existing10 %oldval_keep = and i32 %oldval, 4294705152 ; 0xfffc_000011 12 %newval = load volatile i32, ptr %new13 %newval_masked = and i32 %newval, 262143 ; = 0x0003_ffff14 15 %combined = or i32 %newval_masked, %oldval_keep16 store volatile i32 %combined, ptr %existing17 18 ret void19}20