diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nv50.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nv50.cpp
index 19965ff6940..8752b0c8c54 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nv50.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nv50.cpp
@@ -44,6 +44,8 @@ static bool
 expandIntegerMUL(BuildUtil *bld, Instruction *mul)
 {
    const bool highResult = mul->subOp == NV50_IR_SUBOP_MUL_HIGH;
+   ImmediateValue src1;
+   bool src1imm = mul->src(1).getImmediate(src1);
 
    DataType fTy; // full type
    switch (mul->sType) {
@@ -72,24 +74,41 @@ expandIntegerMUL(BuildUtil *bld, Instruction *mul)
    for (int j = 0; j < 4; ++j)
       t[j] = bld->getSSA(fullSize);
 
-   s[0] = mul->getSrc(0);
-   s[1] = mul->getSrc(1);
-
    if (isSignedType(mul->sType) && highResult) {
       s[0] = bld->getSSA(fullSize);
       s[1] = bld->getSSA(fullSize);
       bld->mkOp1(OP_ABS, mul->sType, s[0], mul->getSrc(0));
       bld->mkOp1(OP_ABS, mul->sType, s[1], mul->getSrc(1));
+      src1.reg.data.s32 = abs(src1.reg.data.s32);
+   } else {
+      s[0] = mul->getSrc(0);
+      s[1] = mul->getSrc(1);
    }
 
    // split sources into halves
    i[0] = bld->mkSplit(a, halfSize, s[0]);
    i[1] = bld->mkSplit(b, halfSize, s[1]);
 
-   i[2] = bld->mkOp2(OP_MUL, fTy, t[0], a[0], b[1]);
-   i[3] = bld->mkOp3(OP_MAD, fTy, t[1], a[1], b[0], t[0]);
+   if (src1imm && (src1.reg.data.u32 & 0xffff0000) == 0) {
+      i[2] = i[3] = bld->mkOp2(OP_MUL, fTy, t[1], a[1],
+                               bld->mkImm(src1.reg.data.u32 & 0xffff));
+   } else {
+      i[2] = bld->mkOp2(OP_MUL, fTy, t[0], a[0],
+                        src1imm ? bld->mkImm(src1.reg.data.u32 >> 16) : b[1]);
+      if (src1imm && (src1.reg.data.u32 & 0x0000ffff) == 0) {
+         i[3] = i[2];
+         t[1] = t[0];
+      } else {
+         i[3] = bld->mkOp3(OP_MAD, fTy, t[1], a[1], b[0], t[0]);
+      }
+   }
    i[7] = bld->mkOp2(OP_SHL, fTy, t[2], t[1], bld->mkImm(halfSize * 8));
-   i[4] = bld->mkOp3(OP_MAD, fTy, t[3], a[0], b[0], t[2]);
+   if (src1imm && (src1.reg.data.u32 & 0x0000ffff) == 0) {
+      i[4] = i[3];
+      t[3] = t[2];
+   } else {
+      i[4] = bld->mkOp3(OP_MAD, fTy, t[3], a[0], b[0], t[2]);
+   }
 
    if (highResult) {
       Value *c[2];