Fixing UNPACK D3DCOLOR. Probably.

2014-05-30 21:38:33 -07:00
parent 0b42c72ec5
commit 7acbf759e2
2 changed files with 3 additions and 1 deletions
--- a/src/alloy/backend/x64/x64_sequences.cc
+++ b/src/alloy/backend/x64/x64_sequences.cc
@@ -4826,6 +4826,8 @@ EMITTER(UNPACK, MATCH(I<OPCODE_UNPACK, V128<>, V128<>>)) {
    // src = ZZYYXXWW
    // unpack to 000000ZZ,000000YY,000000XX,000000WW
    e.vpshufb(i.dest, i.src1, e.GetXmmConstPtr(XMMUnpackD3DCOLOR));
+    // int -> float
+    e.vcvtdq2ps(i.dest, i.dest);
    // mult by 1/255
    e.vmulps(i.dest, e.GetXmmConstPtr(XMMOneOver255));
  }