diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f875947..9235c1e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,5 @@
 name: Test
-on: [push, pull_request]
+on: [push]
 env:
   GITHUB_TOKEN: ${{ secrets.COVERALLS_TOKEN }}
   GO111MODULE: "on"
@@ -8,12 +8,10 @@ jobs:
     name: Test with Coverage
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go
-        uses: actions/setup-go@v1
+      - uses: actions/checkout@v5
+      - uses: actions/setup-go@v6
         with:
-          go-version: "1.20"
-      - name: Check out code
-        uses: actions/checkout@v2
+          go-version: "1.25"
       - name: Install dependencies
         run: |
           go mod download
diff --git a/simd_apple.s b/simd_apple.s
index b471f22..268d363 100644
--- a/simd_apple.s
+++ b/simd_apple.s
@@ -5,18 +5,16 @@ TEXT ·_and(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!           ; 16-byte Folded Spill
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, LBB0_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	LBB0_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	LBB0_8
+	WORD $0x54000209  // b.ls	LBB0_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	LBB0_8
+	WORD $0x540001a9  // b.ls	LBB0_8
 
 BB0_4:
 	WORD $0xd2800008 // mov	x8, #0
@@ -36,7 +34,6 @@ BB0_6:
 	WORD $0x54ffff61 // b.ne	LBB0_6
 
 BB0_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 BB0_8:
@@ -56,25 +53,23 @@ BB0_9:
 	WORD $0xf100116b // subs	x11, x11, #4
 	WORD $0x54ffff01 // b.ne	LBB0_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	LBB0_7
-	WORD $0x17ffffe5 // b	LBB0_5
+	WORD $0x54fffe20 // b.eq	LBB0_7
+	WORD $0x17ffffe6 // b	LBB0_5
 
 TEXT ·_andn(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!           ; 16-byte Folded Spill
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, LBB1_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	LBB1_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	LBB1_8
+	WORD $0x54000209  // b.ls	LBB1_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	LBB1_8
+	WORD $0x540001a9  // b.ls	LBB1_8
 
 BB1_4:
 	WORD $0xd2800008 // mov	x8, #0
@@ -94,7 +89,6 @@ BB1_6:
 	WORD $0x54ffff61 // b.ne	LBB1_6
 
 BB1_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 BB1_8:
@@ -114,25 +108,23 @@ BB1_9:
 	WORD $0xf100116b // subs	x11, x11, #4
 	WORD $0x54ffff01 // b.ne	LBB1_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	LBB1_7
-	WORD $0x17ffffe5 // b	LBB1_5
+	WORD $0x54fffe20 // b.eq	LBB1_7
+	WORD $0x17ffffe6 // b	LBB1_5
 
 TEXT ·_or(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!           ; 16-byte Folded Spill
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, LBB2_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	LBB2_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	LBB2_8
+	WORD $0x54000209  // b.ls	LBB2_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	LBB2_8
+	WORD $0x540001a9  // b.ls	LBB2_8
 
 BB2_4:
 	WORD $0xd2800008 // mov	x8, #0
@@ -152,7 +144,6 @@ BB2_6:
 	WORD $0x54ffff61 // b.ne	LBB2_6
 
 BB2_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 BB2_8:
@@ -172,25 +163,23 @@ BB2_9:
 	WORD $0xf100116b // subs	x11, x11, #4
 	WORD $0x54ffff01 // b.ne	LBB2_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	LBB2_7
-	WORD $0x17ffffe5 // b	LBB2_5
+	WORD $0x54fffe20 // b.eq	LBB2_7
+	WORD $0x17ffffe6 // b	LBB2_5
 
 TEXT ·_xor(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!           ; 16-byte Folded Spill
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, LBB3_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	LBB3_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	LBB3_8
+	WORD $0x54000209  // b.ls	LBB3_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	LBB3_8
+	WORD $0x540001a9  // b.ls	LBB3_8
 
 BB3_4:
 	WORD $0xd2800008 // mov	x8, #0
@@ -210,7 +199,6 @@ BB3_6:
 	WORD $0x54ffff61 // b.ne	LBB3_6
 
 BB3_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 BB3_8:
@@ -230,19 +218,17 @@ BB3_9:
 	WORD $0xf100116b // subs	x11, x11, #4
 	WORD $0x54ffff01 // b.ne	LBB3_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	LBB3_7
-	WORD $0x17ffffe5 // b	LBB3_5
+	WORD $0x54fffe20 // b.eq	LBB3_7
+	WORD $0x17ffffe6 // b	LBB3_5
 
 TEXT ·_and_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb67fa     // stp	x26, x25, [sp, #-80]!           ; 16-byte Folded Spill
+	WORD $0xa9bc67fa     // stp	x26, x25, [sp, #-64]!           ; 16-byte Folded Spill
 	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]             ; 16-byte Folded Spill
 	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]             ; 16-byte Folded Spill
 	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]             ; 16-byte Folded Spill
-	WORD $0xa9047bfd     // stp	x29, x30, [sp, #64]             ; 16-byte Folded Spill
-	WORD $0x910103fd     // add	x29, sp, #64
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
 	WORD $0x54000a20     // b.eq	LBB4_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
@@ -341,23 +327,20 @@ BB4_13:
 	WORD $0x17ffffd9 // b	LBB4_6
 
 BB4_14:
-	WORD $0xa9447bfd // ldp	x29, x30, [sp, #64]             ; 16-byte Folded Reload
 	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]             ; 16-byte Folded Reload
 	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]             ; 16-byte Folded Reload
 	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]             ; 16-byte Folded Reload
-	WORD $0xa8c567fa // ldp	x26, x25, [sp], #80             ; 16-byte Folded Reload
+	WORD $0xa8c467fa // ldp	x26, x25, [sp], #64             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_andn_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb67fa     // stp	x26, x25, [sp, #-80]!           ; 16-byte Folded Spill
+	WORD $0xa9bc67fa     // stp	x26, x25, [sp, #-64]!           ; 16-byte Folded Spill
 	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]             ; 16-byte Folded Spill
 	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]             ; 16-byte Folded Spill
 	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]             ; 16-byte Folded Spill
-	WORD $0xa9047bfd     // stp	x29, x30, [sp, #64]             ; 16-byte Folded Spill
-	WORD $0x910103fd     // add	x29, sp, #64
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
 	WORD $0x54000a20     // b.eq	LBB5_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
@@ -456,23 +439,20 @@ BB5_13:
 	WORD $0x17ffffd9 // b	LBB5_6
 
 BB5_14:
-	WORD $0xa9447bfd // ldp	x29, x30, [sp, #64]             ; 16-byte Folded Reload
 	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]             ; 16-byte Folded Reload
 	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]             ; 16-byte Folded Reload
 	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]             ; 16-byte Folded Reload
-	WORD $0xa8c567fa // ldp	x26, x25, [sp], #80             ; 16-byte Folded Reload
+	WORD $0xa8c467fa // ldp	x26, x25, [sp], #64             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_or_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb67fa     // stp	x26, x25, [sp, #-80]!           ; 16-byte Folded Spill
+	WORD $0xa9bc67fa     // stp	x26, x25, [sp, #-64]!           ; 16-byte Folded Spill
 	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]             ; 16-byte Folded Spill
 	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]             ; 16-byte Folded Spill
 	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]             ; 16-byte Folded Spill
-	WORD $0xa9047bfd     // stp	x29, x30, [sp, #64]             ; 16-byte Folded Spill
-	WORD $0x910103fd     // add	x29, sp, #64
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
 	WORD $0x54000a20     // b.eq	LBB6_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
@@ -571,23 +551,20 @@ BB6_13:
 	WORD $0x17ffffd9 // b	LBB6_6
 
 BB6_14:
-	WORD $0xa9447bfd // ldp	x29, x30, [sp, #64]             ; 16-byte Folded Reload
 	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]             ; 16-byte Folded Reload
 	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]             ; 16-byte Folded Reload
 	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]             ; 16-byte Folded Reload
-	WORD $0xa8c567fa // ldp	x26, x25, [sp], #80             ; 16-byte Folded Reload
+	WORD $0xa8c467fa // ldp	x26, x25, [sp], #64             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_xor_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb67fa     // stp	x26, x25, [sp, #-80]!           ; 16-byte Folded Spill
+	WORD $0xa9bc67fa     // stp	x26, x25, [sp, #-64]!           ; 16-byte Folded Spill
 	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]             ; 16-byte Folded Spill
 	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]             ; 16-byte Folded Spill
 	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]             ; 16-byte Folded Spill
-	WORD $0xa9047bfd     // stp	x29, x30, [sp, #64]             ; 16-byte Folded Spill
-	WORD $0x910103fd     // add	x29, sp, #64
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
 	WORD $0x54000a20     // b.eq	LBB7_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
@@ -686,19 +663,16 @@ BB7_13:
 	WORD $0x17ffffd9 // b	LBB7_6
 
 BB7_14:
-	WORD $0xa9447bfd // ldp	x29, x30, [sp, #64]             ; 16-byte Folded Reload
 	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]             ; 16-byte Folded Reload
 	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]             ; 16-byte Folded Reload
 	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]             ; 16-byte Folded Reload
-	WORD $0xa8c567fa // ldp	x26, x25, [sp], #80             ; 16-byte Folded Reload
+	WORD $0xa8c467fa // ldp	x26, x25, [sp], #64             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_count(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD size+8(FP), R1
 	MOVD result+16(FP), R2
-	WORD $0xa9bf7bfd       // stp	x29, x30, [sp, #-16]!           ; 16-byte Folded Spill
-	WORD $0x910003fd       // mov	x29, sp
 	WORD $0xb40000c1       // cbz	x1, LBB8_3
 	WORD $0xf100103f       // cmp	x1, #4
 	WORD $0x540000c2       // b.hs	LBB8_4
@@ -707,8 +681,8 @@ TEXT ·_count(SB), $0-32
 	WORD $0x14000019       // b	LBB8_7
 
 BB8_3:
-	WORD $0xd2800009 // mov	x9, #0
-	WORD $0x14000020 // b	LBB8_9
+	WORD $0xf900005f // str	xzr, [x2]
+	WORD $0xd65f03c0 // ret
 
 BB8_4:
 	WORD $0x927ef428 // and	x8, x1, #0xfffffffffffffffc
@@ -751,5 +725,4 @@ BB8_8:
 
 BB8_9:
 	WORD $0xf9000049 // str	x9, [x2]
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16             ; 16-byte Folded Reload
 	WORD $0xd65f03c0 // ret
diff --git a/simd_neon.s b/simd_neon.s
index f7bb070..dfe412b 100644
--- a/simd_neon.s
+++ b/simd_neon.s
@@ -5,18 +5,16 @@ TEXT ·_and(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, .LBB0_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	.LBB0_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	.LBB0_8
+	WORD $0x54000209  // b.ls	.LBB0_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	.LBB0_8
+	WORD $0x540001a9  // b.ls	.LBB0_8
 
 LBB0_4:
 	WORD $0xaa1f03e8 // mov	x8, xzr
@@ -36,7 +34,6 @@ LBB0_6:
 	WORD $0x54ffff61 // b.ne	.LBB0_6
 
 LBB0_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16
 	WORD $0xd65f03c0 // ret
 
 LBB0_8:
@@ -56,25 +53,23 @@ LBB0_9:
 	WORD $0x9100814a // add	x10, x10, #32
 	WORD $0x54ffff01 // b.ne	.LBB0_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	.LBB0_7
-	WORD $0x17ffffe5 // b	.LBB0_5
+	WORD $0x54fffe20 // b.eq	.LBB0_7
+	WORD $0x17ffffe6 // b	.LBB0_5
 
 TEXT ·_andn(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, .LBB1_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	.LBB1_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	.LBB1_8
+	WORD $0x54000209  // b.ls	.LBB1_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	.LBB1_8
+	WORD $0x540001a9  // b.ls	.LBB1_8
 
 LBB1_4:
 	WORD $0xaa1f03e8 // mov	x8, xzr
@@ -94,7 +89,6 @@ LBB1_6:
 	WORD $0x54ffff61 // b.ne	.LBB1_6
 
 LBB1_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16
 	WORD $0xd65f03c0 // ret
 
 LBB1_8:
@@ -114,25 +108,23 @@ LBB1_9:
 	WORD $0x9100814a // add	x10, x10, #32
 	WORD $0x54ffff01 // b.ne	.LBB1_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	.LBB1_7
-	WORD $0x17ffffe5 // b	.LBB1_5
+	WORD $0x54fffe20 // b.eq	.LBB1_7
+	WORD $0x17ffffe6 // b	.LBB1_5
 
 TEXT ·_or(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, .LBB2_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	.LBB2_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	.LBB2_8
+	WORD $0x54000209  // b.ls	.LBB2_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	.LBB2_8
+	WORD $0x540001a9  // b.ls	.LBB2_8
 
 LBB2_4:
 	WORD $0xaa1f03e8 // mov	x8, xzr
@@ -152,7 +144,6 @@ LBB2_6:
 	WORD $0x54ffff61 // b.ne	.LBB2_6
 
 LBB2_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16
 	WORD $0xd65f03c0 // ret
 
 LBB2_8:
@@ -172,25 +163,23 @@ LBB2_9:
 	WORD $0x9100814a // add	x10, x10, #32
 	WORD $0x54ffff01 // b.ne	.LBB2_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	.LBB2_7
-	WORD $0x17ffffe5 // b	.LBB2_5
+	WORD $0x54fffe20 // b.eq	.LBB2_7
+	WORD $0x17ffffe6 // b	.LBB2_5
 
 TEXT ·_xor(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD n+16(FP), R2
-	WORD $0xa9bf7bfd  // stp	x29, x30, [sp, #-16]!
-	WORD $0x910003fd  // mov	x29, sp
 	WORD $0xb40002a2  // cbz	x2, .LBB3_7
 	WORD $0xf100105f  // cmp	x2, #4
 	WORD $0x54000103  // b.lo	.LBB3_4
 	WORD $0xd37df048  // lsl	x8, x2, #3
 	WORD $0x8b080029  // add	x9, x1, x8
 	WORD $0xeb00013f  // cmp	x9, x0
-	WORD $0x54000229  // b.ls	.LBB3_8
+	WORD $0x54000209  // b.ls	.LBB3_8
 	WORD $0x8b080008  // add	x8, x0, x8
 	WORD $0xeb01011f  // cmp	x8, x1
-	WORD $0x540001c9  // b.ls	.LBB3_8
+	WORD $0x540001a9  // b.ls	.LBB3_8
 
 LBB3_4:
 	WORD $0xaa1f03e8 // mov	x8, xzr
@@ -210,7 +199,6 @@ LBB3_6:
 	WORD $0x54ffff61 // b.ne	.LBB3_6
 
 LBB3_7:
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16
 	WORD $0xd65f03c0 // ret
 
 LBB3_8:
@@ -230,20 +218,18 @@ LBB3_9:
 	WORD $0x9100814a // add	x10, x10, #32
 	WORD $0x54ffff01 // b.ne	.LBB3_9
 	WORD $0xeb02011f // cmp	x8, x2
-	WORD $0x54fffe00 // b.eq	.LBB3_7
-	WORD $0x17ffffe5 // b	.LBB3_5
+	WORD $0x54fffe20 // b.eq	.LBB3_7
+	WORD $0x17ffffe6 // b	.LBB3_5
 
 TEXT ·_and_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb7bfd     // stp	x29, x30, [sp, #-80]!
+	WORD $0xf81c0ff9     // str	x25, [sp, #-64]!
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
-	WORD $0xf9000bf9     // str	x25, [sp, #16]
-	WORD $0xa9025ff8     // stp	x24, x23, [sp, #32]
-	WORD $0x910003fd     // mov	x29, sp
-	WORD $0xa90357f6     // stp	x22, x21, [sp, #48]
-	WORD $0xa9044ff4     // stp	x20, x19, [sp, #64]
+	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]
+	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]
+	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]
 	WORD $0x54000a20     // b.eq	.LBB4_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
 	WORD $0xb40009eb     // cbz	x11, .LBB4_14
@@ -341,24 +327,21 @@ LBB4_13:
 	WORD $0x17ffffd9 // b	.LBB4_6
 
 LBB4_14:
-	WORD $0xa9444ff4 // ldp	x20, x19, [sp, #64]
-	WORD $0xa94357f6 // ldp	x22, x21, [sp, #48]
-	WORD $0xa9425ff8 // ldp	x24, x23, [sp, #32]
-	WORD $0xf9400bf9 // ldr	x25, [sp, #16]
-	WORD $0xa8c57bfd // ldp	x29, x30, [sp], #80
+	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]
+	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]
+	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]
+	WORD $0xf84407f9 // ldr	x25, [sp], #64
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_andn_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb7bfd     // stp	x29, x30, [sp, #-80]!
+	WORD $0xf81c0ff9     // str	x25, [sp, #-64]!
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
-	WORD $0xf9000bf9     // str	x25, [sp, #16]
-	WORD $0xa9025ff8     // stp	x24, x23, [sp, #32]
-	WORD $0x910003fd     // mov	x29, sp
-	WORD $0xa90357f6     // stp	x22, x21, [sp, #48]
-	WORD $0xa9044ff4     // stp	x20, x19, [sp, #64]
+	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]
+	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]
+	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]
 	WORD $0x54000a20     // b.eq	.LBB5_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
 	WORD $0xb40009eb     // cbz	x11, .LBB5_14
@@ -456,24 +439,21 @@ LBB5_13:
 	WORD $0x17ffffd9 // b	.LBB5_6
 
 LBB5_14:
-	WORD $0xa9444ff4 // ldp	x20, x19, [sp, #64]
-	WORD $0xa94357f6 // ldp	x22, x21, [sp, #48]
-	WORD $0xa9425ff8 // ldp	x24, x23, [sp, #32]
-	WORD $0xf9400bf9 // ldr	x25, [sp, #16]
-	WORD $0xa8c57bfd // ldp	x29, x30, [sp], #80
+	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]
+	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]
+	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]
+	WORD $0xf84407f9 // ldr	x25, [sp], #64
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_or_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb7bfd     // stp	x29, x30, [sp, #-80]!
+	WORD $0xf81c0ff9     // str	x25, [sp, #-64]!
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
-	WORD $0xf9000bf9     // str	x25, [sp, #16]
-	WORD $0xa9025ff8     // stp	x24, x23, [sp, #32]
-	WORD $0x910003fd     // mov	x29, sp
-	WORD $0xa90357f6     // stp	x22, x21, [sp, #48]
-	WORD $0xa9044ff4     // stp	x20, x19, [sp, #64]
+	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]
+	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]
+	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]
 	WORD $0x54000a20     // b.eq	.LBB6_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
 	WORD $0xb40009eb     // cbz	x11, .LBB6_14
@@ -571,24 +551,21 @@ LBB6_13:
 	WORD $0x17ffffd9 // b	.LBB6_6
 
 LBB6_14:
-	WORD $0xa9444ff4 // ldp	x20, x19, [sp, #64]
-	WORD $0xa94357f6 // ldp	x22, x21, [sp, #48]
-	WORD $0xa9425ff8 // ldp	x24, x23, [sp, #32]
-	WORD $0xf9400bf9 // ldr	x25, [sp, #16]
-	WORD $0xa8c57bfd // ldp	x29, x30, [sp], #80
+	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]
+	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]
+	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]
+	WORD $0xf84407f9 // ldr	x25, [sp], #64
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_xor_many(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD b+8(FP), R1
 	MOVD dims+16(FP), R2
-	WORD $0xa9bb7bfd     // stp	x29, x30, [sp, #-80]!
+	WORD $0xf81c0ff9     // str	x25, [sp, #-64]!
 	WORD $0xf2407c48     // ands	x8, x2, #0xffffffff
-	WORD $0xf9000bf9     // str	x25, [sp, #16]
-	WORD $0xa9025ff8     // stp	x24, x23, [sp, #32]
-	WORD $0x910003fd     // mov	x29, sp
-	WORD $0xa90357f6     // stp	x22, x21, [sp, #48]
-	WORD $0xa9044ff4     // stp	x20, x19, [sp, #64]
+	WORD $0xa9015ff8     // stp	x24, x23, [sp, #16]
+	WORD $0xa90257f6     // stp	x22, x21, [sp, #32]
+	WORD $0xa9034ff4     // stp	x20, x19, [sp, #48]
 	WORD $0x54000a20     // b.eq	.LBB7_14
 	WORD $0xd360fc4b     // lsr	x11, x2, #32
 	WORD $0xb40009eb     // cbz	x11, .LBB7_14
@@ -686,19 +663,16 @@ LBB7_13:
 	WORD $0x17ffffd9 // b	.LBB7_6
 
 LBB7_14:
-	WORD $0xa9444ff4 // ldp	x20, x19, [sp, #64]
-	WORD $0xa94357f6 // ldp	x22, x21, [sp, #48]
-	WORD $0xa9425ff8 // ldp	x24, x23, [sp, #32]
-	WORD $0xf9400bf9 // ldr	x25, [sp, #16]
-	WORD $0xa8c57bfd // ldp	x29, x30, [sp], #80
+	WORD $0xa9434ff4 // ldp	x20, x19, [sp, #48]
+	WORD $0xa94257f6 // ldp	x22, x21, [sp, #32]
+	WORD $0xa9415ff8 // ldp	x24, x23, [sp, #16]
+	WORD $0xf84407f9 // ldr	x25, [sp], #64
 	WORD $0xd65f03c0 // ret
 
 TEXT ·_count(SB), $0-32
 	MOVD a+0(FP), R0
 	MOVD size+8(FP), R1
 	MOVD result+16(FP), R2
-	WORD $0xa9bf7bfd       // stp	x29, x30, [sp, #-16]!
-	WORD $0x910003fd       // mov	x29, sp
 	WORD $0xb40000c1       // cbz	x1, .LBB8_3
 	WORD $0xf100103f       // cmp	x1, #4
 	WORD $0x540000c2       // b.hs	.LBB8_4
@@ -707,8 +681,8 @@ TEXT ·_count(SB), $0-32
 	WORD $0x14000019       // b	.LBB8_7
 
 LBB8_3:
-	WORD $0xaa1f03e9 // mov	x9, xzr
-	WORD $0x14000020 // b	.LBB8_9
+	WORD $0xf900005f // str	xzr, [x2]
+	WORD $0xd65f03c0 // ret
 
 LBB8_4:
 	WORD $0x927ef428 // and	x8, x1, #0xfffffffffffffffc
@@ -751,5 +725,4 @@ LBB8_8:
 
 LBB8_9:
 	WORD $0xf9000049 // str	x9, [x2]
-	WORD $0xa8c17bfd // ldp	x29, x30, [sp], #16
 	WORD $0xd65f03c0 // ret