1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -filetype=obj < %s | llvm-objdump -disassemble - | FileCheck %s
2 ; RUN: llc -mtriple=arm64-linux-gnu -filetype=obj -o - %s | llvm-objdump -disassemble - | FileCheck %s
4 ; The encoding of lsb -> immr in the CGed bitfield instructions was wrong at one
5 ; point, in the edge case where lsb = 0. Just make sure.
7 define void @test_bfi0(i32* %existing, i32* %new) {
8 ; CHECK: bfxil {{w[0-9]+}}, {{w[0-9]+}}, #0, #18
10 %oldval = load volatile i32* %existing
11 %oldval_keep = and i32 %oldval, 4294705152 ; 0xfffc_0000
13 %newval = load volatile i32* %new
14 %newval_masked = and i32 %newval, 262143 ; = 0x0003_ffff
16 %combined = or i32 %newval_masked, %oldval_keep
17 store volatile i32 %combined, i32* %existing