aarch64: Add popcnt for i128 values

2021-06-02 17:35:02 +01:00
parent 5140fd251a
commit 09fec151eb
3 changed files with 77 additions and 13 deletions
--- a/cranelift/filetests/filetests/isa/aarch64/bitops.clif
+++ b/cranelift/filetests/filetests/isa/aarch64/bitops.clif
@@ -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