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https://github.com/RPCS3/llvm-mirror.git
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07c06734bb
Summary: This patch simplifies the DAGs generated when using the intrinsic `@llvm.vscale.*` as follows: * Fold (add (vscale * C0), (vscale * C1)) to (vscale * (C0 + C1)). * Canonicalize (sub X, (vscale * C)) to (add X, (vscale * -C)). * Fold (mul (vscale * C0), C1) to (vscale * (C0 * C1)). * Fold (shl (vscale * C0), C1) to (vscale * (C0 << C1)). The test `sve-gep-ll` have been updated to reflect the folding introduced by this patch. Reviewers: efriedma, sdesmalen, andwar, rengolin Reviewed By: sdesmalen Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D74782
140 lines
5.4 KiB
LLVM
140 lines
5.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve < %s | FileCheck %s
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define <vscale x 2 x i64>* @scalar_of_scalable_1(<vscale x 2 x i64>* %base) {
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; CHECK-LABEL: scalar_of_scalable_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #4
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; CHECK-NEXT: add x0, x0, x8
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; CHECK-NEXT: ret
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%d = getelementptr <vscale x 2 x i64>, <vscale x 2 x i64>* %base, i64 4
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ret <vscale x 2 x i64>* %d
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}
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define <vscale x 2 x i64>* @scalar_of_scalable_2(<vscale x 2 x i64>* %base, i64 %offset) {
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; CHECK-LABEL: scalar_of_scalable_2:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: madd x0, x1, x8, x0
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; CHECK-NEXT: ret
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%d = getelementptr <vscale x 2 x i64>, <vscale x 2 x i64>* %base, i64 %offset
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ret <vscale x 2 x i64>* %d
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}
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define <vscale x 2 x i32>* @scalar_of_scalable_3(<vscale x 2 x i32>* %base, i64 %offset) {
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; CHECK-LABEL: scalar_of_scalable_3:
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; CHECK: // %bb.0:
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; CHECK-NEXT: cnth x8
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; CHECK-NEXT: madd x0, x1, x8, x0
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; CHECK-NEXT: ret
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%d = getelementptr <vscale x 2 x i32>, <vscale x 2 x i32>* %base, i64 %offset
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ret <vscale x 2 x i32>* %d
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}
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define <2 x <vscale x 2 x i64>*> @fixed_of_scalable_1(<vscale x 2 x i64>* %base) {
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; CHECK-LABEL: fixed_of_scalable_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: dup v0.2d, x8
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; CHECK-NEXT: dup v1.2d, x0
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; CHECK-NEXT: add v0.2d, v1.2d, v0.2d
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; CHECK-NEXT: ret
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%d = getelementptr <vscale x 2 x i64>, <vscale x 2 x i64>* %base, <2 x i64> <i64 1, i64 1>
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ret <2 x <vscale x 2 x i64>*> %d
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}
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define <2 x <vscale x 2 x i64>*> @fixed_of_scalable_2(<2 x <vscale x 2 x i64>*> %base) {
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; CHECK-LABEL: fixed_of_scalable_2:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: dup v1.2d, x8
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; CHECK-NEXT: add v0.2d, v0.2d, v1.2d
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; CHECK-NEXT: ret
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%d = getelementptr <vscale x 2 x i64>, <2 x <vscale x 2 x i64>*> %base, <2 x i64> <i64 1, i64 1>
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ret <2 x <vscale x 2 x i64>*> %d
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}
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define <vscale x 2 x i8*> @scalable_of_fixed_1(i8* %base) {
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; CHECK-LABEL: scalable_of_fixed_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov z0.d, x0
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; CHECK-NEXT: add z0.d, z0.d, #1 // =0x1
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; CHECK-NEXT: ret
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%idx = shufflevector <vscale x 2 x i64> insertelement (<vscale x 2 x i64> undef, i64 1, i32 0), <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i32> zeroinitializer
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%d = getelementptr i8, i8* %base, <vscale x 2 x i64> %idx
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ret <vscale x 2 x i8*> %d
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}
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define <vscale x 2 x i8*> @scalable_of_fixed_2(<vscale x 2 x i8*> %base) {
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; CHECK-LABEL: scalable_of_fixed_2:
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; CHECK: // %bb.0:
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; CHECK-NEXT: add z0.d, z0.d, #1 // =0x1
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; CHECK-NEXT: ret
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%idx = shufflevector <vscale x 2 x i64> insertelement (<vscale x 2 x i64> undef, i64 1, i32 0), <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i32> zeroinitializer
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%d = getelementptr i8, <vscale x 2 x i8*> %base, <vscale x 2 x i64> %idx
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ret <vscale x 2 x i8*> %d
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}
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define <vscale x 2 x i8*> @scalable_of_fixed_3(i8* %base, <vscale x 2 x i64> %idx) {
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; CHECK-LABEL: scalable_of_fixed_3:
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; CHECK: // %bb.0:
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; CHECK-NEXT: mov z1.d, x0
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; CHECK-NEXT: add z0.d, z1.d, z0.d
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; CHECK-NEXT: ret
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%d = getelementptr i8, i8* %base, <vscale x 2 x i64> %idx
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ret <vscale x 2 x i8*> %d
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}
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define <vscale x 2 x i8*> @scalable_of_fixed_4(i8* %base, <vscale x 2 x i32> %idx) {
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; CHECK-LABEL: scalable_of_fixed_4:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.d
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; CHECK-NEXT: sxtw z0.d, p0/m, z0.d
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; CHECK-NEXT: mov z1.d, x0
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; CHECK-NEXT: add z0.d, z1.d, z0.d
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; CHECK-NEXT: ret
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%d = getelementptr i8, i8* %base, <vscale x 2 x i32> %idx
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ret <vscale x 2 x i8*> %d
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}
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define <vscale x 2 x <vscale x 2 x i64>*> @scalable_of_scalable_1(<vscale x 2 x i64>* %base) {
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; CHECK-LABEL: scalable_of_scalable_1:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: mov z1.d, x8
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; CHECK-NEXT: mov z0.d, x0
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; CHECK-NEXT: mul z1.d, z1.d, #1
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; CHECK-NEXT: add z0.d, z0.d, z1.d
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; CHECK-NEXT: ret
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%idx = shufflevector <vscale x 2 x i64> insertelement (<vscale x 2 x i64> undef, i64 1, i32 0), <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i32> zeroinitializer
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%d = getelementptr <vscale x 2 x i64>, <vscale x 2 x i64>* %base, <vscale x 2 x i64> %idx
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ret <vscale x 2 x <vscale x 2 x i64>*> %d
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}
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define <vscale x 2 x <vscale x 2 x i64>*> @scalable_of_scalable_2(<vscale x 2 x <vscale x 2 x i64>*> %base) {
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; CHECK-LABEL: scalable_of_scalable_2:
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; CHECK: // %bb.0:
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: mov z1.d, x8
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; CHECK-NEXT: mul z1.d, z1.d, #1
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; CHECK-NEXT: add z0.d, z0.d, z1.d
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; CHECK-NEXT: ret
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%idx = shufflevector <vscale x 2 x i64> insertelement (<vscale x 2 x i64> undef, i64 1, i32 0), <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i32> zeroinitializer
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%d = getelementptr <vscale x 2 x i64>, <vscale x 2 x <vscale x 2 x i64>*> %base, <vscale x 2 x i64> %idx
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ret <vscale x 2 x <vscale x 2 x i64>*> %d
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}
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define <vscale x 2 x <vscale x 2 x i64>*> @scalable_of_scalable_3(<vscale x 2 x <vscale x 2 x i64>*> %base, <vscale x 2 x i32> %idx) {
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; CHECK-LABEL: scalable_of_scalable_3:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.d
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; CHECK-NEXT: rdvl x8, #1
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; CHECK-NEXT: sxtw z1.d, p0/m, z1.d
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; CHECK-NEXT: mov z2.d, x8
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; CHECK-NEXT: mul z1.d, p0/m, z1.d, z2.d
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; CHECK-NEXT: add z0.d, z0.d, z1.d
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; CHECK-NEXT: ret
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%d = getelementptr <vscale x 2 x i64>, <vscale x 2 x <vscale x 2 x i64>*> %base, <vscale x 2 x i32> %idx
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ret <vscale x 2 x <vscale x 2 x i64>*> %d
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}
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