; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 ; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s ; FIXME: Currently, we avoid narrowing this v4i32 load, in the ; hopes of being able to fold the shift, despite it requiring stack ; storage + loads. Ideally, we should narrow here and load the i32 ; directly from the variable offset e.g: ; ; add x8, x0, x1, lsl #4 ; and x9, x2, #0x3 ; ldr w0, [x8, x9, lsl #2] ; ; The AArch64TargetLowering::shouldReduceLoadWidth heuristic should ; probably be updated to choose load-narrowing instead of folding the ; lsl in larger vector cases. ; define i32 @narrow_load_v4_i32_single_ele_variable_idx(ptr %ptr, i64 %off, i32 %ele) { ; CHECK-LABEL: narrow_load_v4_i32_single_ele_variable_idx: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: sub sp, sp, #16 ; CHECK-NEXT: .cfi_def_cfa_offset 16 ; CHECK-NEXT: ldr q0, [x0, x1, lsl #4] ; CHECK-NEXT: mov x8, sp ; CHECK-NEXT: // kill: def $w2 killed $w2 def $x2 ; CHECK-NEXT: bfi x8, x2, #2, #2 ; CHECK-NEXT: str q0, [sp] ; CHECK-NEXT: ldr w0, [x8] ; CHECK-NEXT: add sp, sp, #16 ; CHECK-NEXT: ret entry: %idx = getelementptr inbounds <4 x i32>, ptr %ptr, i64 %off %x = load <4 x i32>, ptr %idx, align 8 %res = extractelement <4 x i32> %x, i32 %ele ret i32 %res }