Add x86 encoding for isub

2019-09-17 13:38:52 -07:00
parent 4e3cb25983
commit ca1df499a0
4 changed files with 59 additions and 4 deletions
--- a/cranelift/codegen/meta/src/isa/x86/encodings.rs
+++ b/cranelift/codegen/meta/src/isa/x86/encodings.rs
@@ -1940,6 +1940,12 @@ pub(crate) fn define(
        e.enc_32_64(iadd, rec_fa.opcodes(*opcodes));
    }

+    // SIMD integer subtraction
+    for (ty, opcodes) in &[(I8, &PSUBB), (I16, &PSUBW), (I32, &PSUBD), (I64, &PSUBQ)] {
+        let isub = isub.bind_vector_from_lane(ty.clone(), sse_vector_size);
+        e.enc_32_64(isub, rec_fa.opcodes(*opcodes));
+    }
+
    // SIMD icmp using PCMPEQ*
    let mut pcmpeq_mapping: HashMap<u64, (&[u8], Option<SettingPredicateNumber>)> = HashMap::new();
    pcmpeq_mapping.insert(8, (&PCMPEQB, None));