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llvm-mirror/test/CodeGen/Thumb2/mve-vaddv.ll
David Green 17e932c916 [ARM] Create VMOVRRD from adjacent vector extracts
This adds a combine for extract(x, n); extract(x, n+1)  ->
VMOVRRD(extract x, n/2). This allows two vector lanes to be moved at the
same time in a single instruction, and thanks to the other VMOVRRD folds
we have added recently can help reduce the amount of executed
instructions. Floating point types are very similar, but will include a
bitcast to an integer type.

This also adds a shouldRewriteCopySrc, to prevent copy propagation from
DPR to SPR, which can break as not all DPR regs can be extracted from
directly.  Otherwise the machine verifier is unhappy.

Differential Revision: https://reviews.llvm.org/D100244
2021-04-20 15:15:43 +01:00

174 lines
5.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp %s -o - | FileCheck %s
declare i64 @llvm.vector.reduce.add.i64.v2i64(<2 x i64>)
declare i32 @llvm.vector.reduce.add.i32.v4i32(<4 x i32>)
declare i32 @llvm.vector.reduce.add.i32.v8i32(<8 x i32>)
declare i16 @llvm.vector.reduce.add.i16.v8i16(<8 x i16>)
declare i16 @llvm.vector.reduce.add.i16.v16i16(<16 x i16>)
declare i8 @llvm.vector.reduce.add.i8.v16i8(<16 x i8>)
declare i8 @llvm.vector.reduce.add.i8.v32i8(<32 x i8>)
define arm_aapcs_vfpcc i64 @vaddv_v2i64_i64(<2 x i64> %s1) {
; CHECK-LABEL: vaddv_v2i64_i64:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vmov r0, r1, d1
; CHECK-NEXT: vmov r2, r3, d0
; CHECK-NEXT: adds r0, r0, r2
; CHECK-NEXT: adcs r1, r3
; CHECK-NEXT: bx lr
entry:
%r = call i64 @llvm.vector.reduce.add.i64.v2i64(<2 x i64> %s1)
ret i64 %r
}
define arm_aapcs_vfpcc i32 @vaddv_v4i32_i32(<4 x i32> %s1) {
; CHECK-LABEL: vaddv_v4i32_i32:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vaddv.u32 r0, q0
; CHECK-NEXT: bx lr
entry:
%r = call i32 @llvm.vector.reduce.add.i32.v4i32(<4 x i32> %s1)
ret i32 %r
}
define arm_aapcs_vfpcc i32 @vaddv_v8i32_i32(<8 x i32> %s1) {
; CHECK-LABEL: vaddv_v8i32_i32:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vadd.i32 q0, q0, q1
; CHECK-NEXT: vaddv.u32 r0, q0
; CHECK-NEXT: bx lr
entry:
%r = call i32 @llvm.vector.reduce.add.i32.v8i32(<8 x i32> %s1)
ret i32 %r
}
define arm_aapcs_vfpcc i16 @vaddv_v8i16_i16(<8 x i16> %s1) {
; CHECK-LABEL: vaddv_v8i16_i16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vaddv.u16 r0, q0
; CHECK-NEXT: bx lr
entry:
%r = call i16 @llvm.vector.reduce.add.i16.v8i16(<8 x i16> %s1)
ret i16 %r
}
define arm_aapcs_vfpcc i16 @vaddv_v16i16_i16(<16 x i16> %s1) {
; CHECK-LABEL: vaddv_v16i16_i16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vadd.i16 q0, q0, q1
; CHECK-NEXT: vaddv.u16 r0, q0
; CHECK-NEXT: bx lr
entry:
%r = call i16 @llvm.vector.reduce.add.i16.v16i16(<16 x i16> %s1)
ret i16 %r
}
define arm_aapcs_vfpcc i8 @vaddv_v16i8_i8(<16 x i8> %s1) {
; CHECK-LABEL: vaddv_v16i8_i8:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vaddv.u8 r0, q0
; CHECK-NEXT: bx lr
entry:
%r = call i8 @llvm.vector.reduce.add.i8.v16i8(<16 x i8> %s1)
ret i8 %r
}
define arm_aapcs_vfpcc i8 @vaddv_v32i8_i8(<32 x i8> %s1) {
; CHECK-LABEL: vaddv_v32i8_i8:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vadd.i8 q0, q0, q1
; CHECK-NEXT: vaddv.u8 r0, q0
; CHECK-NEXT: bx lr
entry:
%r = call i8 @llvm.vector.reduce.add.i8.v32i8(<32 x i8> %s1)
ret i8 %r
}
define arm_aapcs_vfpcc i64 @vaddva_v2i64_i64(<2 x i64> %s1, i64 %x) {
; CHECK-LABEL: vaddva_v2i64_i64:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r7, lr}
; CHECK-NEXT: push {r7, lr}
; CHECK-NEXT: vmov lr, r12, d1
; CHECK-NEXT: vmov r3, r2, d0
; CHECK-NEXT: adds.w r3, r3, lr
; CHECK-NEXT: adc.w r2, r2, r12
; CHECK-NEXT: adds r0, r0, r3
; CHECK-NEXT: adcs r1, r2
; CHECK-NEXT: pop {r7, pc}
entry:
%t = call i64 @llvm.vector.reduce.add.i64.v2i64(<2 x i64> %s1)
%r = add i64 %t, %x
ret i64 %r
}
define arm_aapcs_vfpcc i32 @vaddva_v4i32_i32(<4 x i32> %s1, i32 %x) {
; CHECK-LABEL: vaddva_v4i32_i32:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vaddva.u32 r0, q0
; CHECK-NEXT: bx lr
entry:
%t = call i32 @llvm.vector.reduce.add.i32.v4i32(<4 x i32> %s1)
%r = add i32 %t, %x
ret i32 %r
}
define arm_aapcs_vfpcc i32 @vaddva_v8i32_i32(<8 x i32> %s1, i32 %x) {
; CHECK-LABEL: vaddva_v8i32_i32:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vadd.i32 q0, q0, q1
; CHECK-NEXT: vaddva.u32 r0, q0
; CHECK-NEXT: bx lr
entry:
%t = call i32 @llvm.vector.reduce.add.i32.v8i32(<8 x i32> %s1)
%r = add i32 %t, %x
ret i32 %r
}
define arm_aapcs_vfpcc i16 @vaddva_v8i16_i16(<8 x i16> %s1, i16 %x) {
; CHECK-LABEL: vaddva_v8i16_i16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vaddva.u16 r0, q0
; CHECK-NEXT: bx lr
entry:
%t = call i16 @llvm.vector.reduce.add.i16.v8i16(<8 x i16> %s1)
%r = add i16 %t, %x
ret i16 %r
}
define arm_aapcs_vfpcc i16 @vaddva_v16i16_i16(<16 x i16> %s1, i16 %x) {
; CHECK-LABEL: vaddva_v16i16_i16:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vadd.i16 q0, q0, q1
; CHECK-NEXT: vaddva.u16 r0, q0
; CHECK-NEXT: bx lr
entry:
%t = call i16 @llvm.vector.reduce.add.i16.v16i16(<16 x i16> %s1)
%r = add i16 %t, %x
ret i16 %r
}
define arm_aapcs_vfpcc i8 @vaddva_v16i8_i8(<16 x i8> %s1, i8 %x) {
; CHECK-LABEL: vaddva_v16i8_i8:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vaddva.u8 r0, q0
; CHECK-NEXT: bx lr
entry:
%t = call i8 @llvm.vector.reduce.add.i8.v16i8(<16 x i8> %s1)
%r = add i8 %t, %x
ret i8 %r
}
define arm_aapcs_vfpcc i8 @vaddva_v32i8_i8(<32 x i8> %s1, i8 %x) {
; CHECK-LABEL: vaddva_v32i8_i8:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: vadd.i8 q0, q0, q1
; CHECK-NEXT: vaddva.u8 r0, q0
; CHECK-NEXT: bx lr
entry:
%t = call i8 @llvm.vector.reduce.add.i8.v32i8(<32 x i8> %s1)
%r = add i8 %t, %x
ret i8 %r
}