Add regression runtests

cranelift/filetests/filetests/runtests/popcnt.clif

@@ -0,0 +1,100 @@
+test interpret
+test run
+target aarch64
+target x86_64
+target x86_64 has_popcnt=1
+
+function %popcnt_i8(i8) -> i8 {
+block0(v0: i8):
+    v1 = popcnt v0
+    return v1
+}
+; run: %popcnt_i8(1) == 1
+; run: %popcnt_i8(0x40) == 1
+; run: %popcnt_i8(-1) == 8
+; run: %popcnt_i8(0) == 0
+
+; Regression test for issue #3615
+function %inv_popcnt_i8(i8) -> i8 {
+block0(v0: i8):
+    v1 = bnot v0
+    v2 = popcnt v1
+    return v2
+}
+; run: %inv_popcnt_i8(1) == 7
+; run: %inv_popcnt_i8(0x40) == 7
+; run: %inv_popcnt_i8(-1) == 0
+; run: %inv_popcnt_i8(0) == 8
+
+function %popcnt_i16(i16) -> i16 {
+block0(v0: i16):
+    v1 = popcnt v0
+    return v1
+}
+; run: %popcnt_i16(1) == 1
+; run: %popcnt_i16(0x4000) == 1
+; run: %popcnt_i16(-1) == 16
+; run: %popcnt_i16(0) == 0
+
+; Regression test for issue #3615
+function %inv_popcnt_i16(i16) -> i16 {
+block0(v0: i16):
+    v1 = bnot v0
+    v2 = popcnt v1
+    return v2
+}
+; run: %inv_popcnt_i16(1) == 15
+; run: %inv_popcnt_i16(0x4000) == 15
+; run: %inv_popcnt_i16(-1) == 0
+; run: %inv_popcnt_i16(0) == 16
+
+function %popcnt_i32(i32) -> i32 {
+block0(v0: i32):
+    v1 = popcnt v0
+    return v1
+}
+; run: %popcnt_i32(1) == 1
+; run: %popcnt_i32(0x40000000) == 1
+; run: %popcnt_i32(-1) == 32
+; run: %popcnt_i32(0) == 0
+
+; Regression test for issue #3615
+function %inv_popcnt_i32(i32) -> i32 {
+block0(v0: i32):
+    v1 = bnot v0
+    v2 = popcnt v1
+    return v2
+}
+; run: %inv_popcnt_i32(1) == 31
+; run: %inv_popcnt_i32(0x40000000) == 31
+; run: %inv_popcnt_i32(-1) == 0
+; run: %inv_popcnt_i32(0) == 32
+
+function %popcnt_i64(i64) -> i64 {
+block0(v0: i64):
+    v1 = popcnt v0
+    return v1
+}
+; run: %popcnt_i64(1) == 1
+; run: %popcnt_i64(0x4000000000000000) == 1
+; run: %popcnt_i64(-1) == 64
+; run: %popcnt_i64(0) == 0
+
+; Regression test for issue #3615
+function %inv_popcnt_i64(i64) -> i64 {
+block0(v0: i64):
+    v1 = bnot v0
+    v2 = popcnt v1
+    return v2
+}
+; run: %inv_popcnt_i64(1) == 63
+; run: %inv_popcnt_i64(0x4000000000000000) == 63
+; run: %inv_popcnt_i64(-1) == 0
+; run: %inv_popcnt_i64(0) == 64
+
+function %popcnt_i8x16(i8x16) -> i8x16 {
+block0(v0: i8x16):
+    v1 = popcnt v0
+    return v1
+}
+; run: %popcnt_i8x16([1 1 1 1 0x40 0x40 0x40 0x40 0xff 0xff 0xff 0xff 0 0 0 0]) == [1 1 1 1 1 1 1 1 8 8 8 8 0 0 0 0]