[ARM] Test for converting VPSEL to VMOVT. NFC

1 files changed, 104 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Thumb2/mve-pred-vctpvpsel.ll b/llvm/test/CodeGen/Thumb2/mve-pred-vctpvpsel.ll
new file mode 100644
index 000000000000..054499795ff7
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/mve-pred-vctpvpsel.ll
@@ -0,0 +1,104 @@
+; 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 -verify-machineinstrs -o - | FileCheck %s
+
+define void @arm_min_helium_f32(float* %pSrc, i32 %blockSize, float* nocapture %pResult, i32* nocapture %pIndex) {
+; CHECK-LABEL: arm_min_helium_f32:
+; CHECK:       @ %bb.0: @ %entry
+; CHECK-NEXT:    .save {r4, r6, r7, lr}
+; CHECK-NEXT:    push {r4, r6, r7, lr}
+; CHECK-NEXT:    .vsave {d8, d9}
+; CHECK-NEXT:    vpush {d8, d9}
+; CHECK-NEXT:    movs r6, #0
+; CHECK-NEXT:    mov r12, r1
+; CHECK-NEXT:    vidup.u32 q2, r6, #1
+; CHECK-NEXT:    cmp r1, #4
+; CHECK-NEXT:    it ge
+; CHECK-NEXT:    movge.w r12, #4
+; CHECK-NEXT:    sub.w r6, r1, r12
+; CHECK-NEXT:    adds r6, #3
+; CHECK-NEXT:    mov.w lr, #1
+; CHECK-NEXT:    adr r4, .LCPI0_0
+; CHECK-NEXT:    vmov.i32 q0, #0x0
+; CHECK-NEXT:    add.w lr, lr, r6, lsr #2
+; CHECK-NEXT:    vldrw.u32 q1, [r4]
+; CHECK-NEXT:    vmov.i32 q3, #0x4
+; CHECK-NEXT:    mov r12, r1
+; CHECK-NEXT:    dls lr, lr
+; CHECK-NEXT:  .LBB0_1: @ %do.body
+; CHECK-NEXT:    @ =>This Inner Loop Header: Depth=1
+; CHECK-NEXT:    vctp.32 r12
+; CHECK-NEXT:    sub.w r12, r12, #4
+; CHECK-NEXT:    vpstt
+; CHECK-NEXT:    vldrwt.u32 q4, [r0], #16
+; CHECK-NEXT:    vcmpt.f32 ge, q1, q4
+; CHECK-NEXT:    vpsel q0, q2, q0
+; CHECK-NEXT:    vpsel q1, q4, q1
+; CHECK-NEXT:    vadd.i32 q2, q2, q3
+; CHECK-NEXT:    le lr, .LBB0_1
+; CHECK-NEXT:  @ %bb.2: @ %do.end
+; CHECK-NEXT:    vldr s8, .LCPI0_1
+; CHECK-NEXT:    vdup.32 q3, r1
+; CHECK-NEXT:    vmov r0, s8
+; CHECK-NEXT:    vminnmv.f32 r0, q1
+; CHECK-NEXT:    vcmp.f32 le, q1, r0
+; CHECK-NEXT:    vmov s8, r0
+; CHECK-NEXT:    vpsel q0, q0, q3
+; CHECK-NEXT:    vminv.u32 r1, q0
+; CHECK-NEXT:    str r1, [r3]
+; CHECK-NEXT:    vstr s8, [r2]
+; CHECK-NEXT:    vpop {d8, d9}
+; CHECK-NEXT:    pop {r4, r6, r7, pc}
+; CHECK-NEXT:    .p2align 4
+; CHECK-NEXT:  @ %bb.3:
+; CHECK-NEXT:  .LCPI0_0:
+; CHECK-NEXT:    .long 0x5368d4a5 @ float 9.99999995E+11
+; CHECK-NEXT:    .long 0x5368d4a5 @ float 9.99999995E+11
+; CHECK-NEXT:    .long 0x5368d4a5 @ float 9.99999995E+11
+; CHECK-NEXT:    .long 0x5368d4a5 @ float 9.99999995E+11
+; CHECK-NEXT:  .LCPI0_1:
+; CHECK-NEXT:    .long 0x5368d4a5 @ float 9.99999995E+11
+entry:
+  %0 = tail call { <4 x i32>, i32 } @llvm.arm.mve.vidup.v4i32(i32 0, i32 1)
+  %1 = extractvalue { <4 x i32>, i32 } %0, 0
+  br label %do.body
+
+do.body:                                          ; preds = %do.body, %entry
+  %curExtremValVec.0 = phi <4 x float> [ <float 0x426D1A94A0000000, float 0x426D1A94A0000000, float 0x426D1A94A0000000, float 0x426D1A94A0000000>, %entry ], [ %8, %do.body ]
+  %indexVec.0 = phi <4 x i32> [ %1, %entry ], [ %11, %do.body ]
+  %2 = phi <4 x float> [ zeroinitializer, %entry ], [ %10, %do.body ]
+  %blkCnt.0 = phi i32 [ %blockSize, %entry ], [ %sub, %do.body ]
+  %pSrc.addr.0 = phi float* [ %pSrc, %entry ], [ %add.ptr, %do.body ]
+  %3 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %blkCnt.0)
+  %4 = bitcast float* %pSrc.addr.0 to <4 x float>*
+  %5 = tail call fast <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %4, i32 4, <4 x i1> %3, <4 x float> zeroinitializer)
+  %6 = fcmp fast ole <4 x float> %5, %curExtremValVec.0
+  %7 = and <4 x i1> %6, %3
+  %8 = select fast <4 x i1> %7, <4 x float> %5, <4 x float> %curExtremValVec.0
+  %9 = bitcast <4 x i32> %indexVec.0 to <4 x float>
+  %10 = select fast <4 x i1> %7, <4 x float> %9, <4 x float> %2
+  %11 = add <4 x i32> %indexVec.0, <i32 4, i32 4, i32 4, i32 4>
+  %add.ptr = getelementptr inbounds float, float* %pSrc.addr.0, i32 4
+  %sub = add nsw i32 %blkCnt.0, -4
+  %cmp = icmp sgt i32 %blkCnt.0, 4
+  br i1 %cmp, label %do.body, label %do.end
+
+do.end:                                           ; preds = %do.body
+  %12 = bitcast <4 x float> %10 to <4 x i32>
+  %13 = tail call fast float @llvm.arm.mve.minnmv.f32.v4f32(float 0x426D1A94A0000000, <4 x float> %8)
+  %.splatinsert = insertelement <4 x float> undef, float %13, i32 0
+  %.splat = shufflevector <4 x float> %.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
+  %14 = fcmp fast ole <4 x float> %8, %.splat
+  %.splatinsert1 = insertelement <4 x i32> undef, i32 %blockSize, i32 0
+  %.splat2 = shufflevector <4 x i32> %.splatinsert1, <4 x i32> undef, <4 x i32> zeroinitializer
+  %15 = select <4 x i1> %14, <4 x i32> %12, <4 x i32> %.splat2
+  %16 = tail call i32 @llvm.arm.mve.minv.v4i32(i32 %blockSize, <4 x i32> %15, i32 1)
+  store i32 %16, i32* %pIndex, align 4
+  store float %13, float* %pResult, align 4
+  ret void
+}
+
+declare { <4 x i32>, i32 } @llvm.arm.mve.vidup.v4i32(i32, i32) #1
+declare <4 x i1> @llvm.arm.mve.vctp32(i32) #1
+declare <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>*, i32 immarg, <4 x i1>, <4 x float>) #2
+declare float @llvm.arm.mve.minnmv.f32.v4f32(float, <4 x float>) #1
+declare i32 @llvm.arm.mve.minv.v4i32(i32, <4 x i32>, i32) #1