mve-gather-scatter-opt.ll
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=+mve.fp %s -o 2>/dev/null - | FileCheck --check-prefix NOGATSCAT %s
; RUN: llc -mtriple=thumbv8.1m.main-arm-none-eabi -mattr=-mve -enable-arm-maskedgatscat %s -o 2>/dev/null - | FileCheck --check-prefix NOMVE %s
define arm_aapcs_vfpcc <4 x i32> @unscaled_i32_i32(i8* %base, <4 x i32>* %offptr) {
; NOGATSCAT-LABEL: unscaled_i32_i32:
; NOGATSCAT: @ %bb.0: @ %entry
; NOGATSCAT-NEXT: vldrw.u32 q0, [r1]
; NOGATSCAT-NEXT: vadd.i32 q0, q0, r0
; NOGATSCAT-NEXT: vmov r0, s0
; NOGATSCAT-NEXT: vmov r3, s1
; NOGATSCAT-NEXT: vmov r1, s2
; NOGATSCAT-NEXT: vmov r2, s3
; NOGATSCAT-NEXT: ldr r0, [r0]
; NOGATSCAT-NEXT: ldr r3, [r3]
; NOGATSCAT-NEXT: vmov.32 q0[0], r0
; NOGATSCAT-NEXT: ldr r1, [r1]
; NOGATSCAT-NEXT: vmov.32 q0[1], r3
; NOGATSCAT-NEXT: ldr r2, [r2]
; NOGATSCAT-NEXT: vmov.32 q0[2], r1
; NOGATSCAT-NEXT: vmov.32 q0[3], r2
; NOGATSCAT-NEXT: bx lr
;
; NOMVE-LABEL: unscaled_i32_i32:
; NOMVE: @ %bb.0: @ %entry
; NOMVE-NEXT: .save {r4, lr}
; NOMVE-NEXT: push {r4, lr}
; NOMVE-NEXT: ldm.w r1, {r2, r3, lr}
; NOMVE-NEXT: ldr r4, [r1, #12]
; NOMVE-NEXT: ldr.w r12, [r0, r2]
; NOMVE-NEXT: ldr r1, [r0, r3]
; NOMVE-NEXT: ldr.w r2, [r0, lr]
; NOMVE-NEXT: ldr r3, [r0, r4]
; NOMVE-NEXT: mov r0, r12
; NOMVE-NEXT: pop {r4, pc}
entry:
%offs = load <4 x i32>, <4 x i32>* %offptr, align 4
%byte_ptrs = getelementptr inbounds i8, i8* %base, <4 x i32> %offs
%ptrs = bitcast <4 x i8*> %byte_ptrs to <4 x i32*>
%gather = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %ptrs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
ret <4 x i32> %gather
}
declare <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*>, i32, <4 x i1>, <4 x i32>)