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aarch64: Add popcnt for i128 values

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This commit is contained in:
Afonso Bordado
2021-06-02 17:35:02 +01:00
parent 5140fd251a
commit 09fec151eb
3 changed files with 77 additions and 13 deletions
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18
cranelift/filetests/filetests/isa/aarch64/bitops.clif
View File

@@ -207,6 +207,24 @@ block0(v0: i64):
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %d(i128) -> i128 {
block0(v0: i128):
v1 = popcnt v0
return v1
}
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: fmov d0, x0
; nextln: mov v0.d[1], x1
; nextln: cnt v0.16b, v0.16b
; nextln: addv b0, v0.16b
; nextln: umov w0, v0.b[0]
; nextln: movz x1, #0
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %d(i64) -> i64 {
block0(v0: i64):
v1 = popcnt v0

17
cranelift/filetests/filetests/runtests/i128-bitops-misc.clif → cranelift/filetests/filetests/runtests/i128-bitops-count.clif
View File

@@ -25,3 +25,20 @@ block0(v0: i64, v1: i64):
; run: %clz(0x00000000_00010000, 0x00000001_00000000) == 31
; run: %clz(0x00000000_00010000, 0x00000000_00000000) == 111
; run: %clz(0x00000000_00000000, 0x00000000_00000000) == 128
function %popcnt_i128(i64, i64) -> i64 {
block0(v0: i64, v1: i64):
v2 = iconcat v0, v1
v3 = popcnt v2
v4, v5 = isplit v3
v6 = iadd v4, v5
return v6
}
; run: %popcnt_i128(0, 0) == 0
; run: %popcnt_i128(-1, 0) == 64
; run: %popcnt_i128(0, -1) == 64
; run: %popcnt_i128(-1, -1) == 128
; run: %popcnt_i128(0x55555555_55555555, 0x55555555_55555555) == 64
; run: %popcnt_i128(0xC0FFEEEE_DECAFFFF, 0xDECAFFFF_C0FFEEEE) == 96