diff options
| author | Christoph Bumiller <[email protected]> | 2012-05-05 16:35:49 +0200 |
|---|---|---|
| committer | Christoph Bumiller <[email protected]> | 2012-05-06 22:03:06 +0200 |
| commit | 28d6a268af3587cedb6a0e9deee7a98ecc8f82ba (patch) | |
| tree | 20d68860b43cd72f71159033c0dd69c6e4163f6a /src/gallium/drivers/nv50 | |
| parent | 38a20281fcc2ed244aea0aaa268035533f48a183 (diff) | |
nv50/ir/opt: don't lose saturation in tryCollapseChainedMULs
Diffstat (limited to 'src/gallium/drivers/nv50')
| -rw-r--r-- | src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp index db5195cd582..10382d9cac6 100644 --- a/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp @@ -564,7 +564,7 @@ ConstantFolding::tryCollapseChainedMULs(Instruction *mul2, insn = mul2->getSrc(t)->getInsn(); if (!mul2->src(t).mod && insn->op == OP_MUL && insn->dType == TYPE_F32) mul1 = insn; - if (mul1) { + if (mul1 && !mul1->saturate) { int s1; if (mul1->src(s1 = 0).getImmediate(imm1) || @@ -584,10 +584,11 @@ ConstantFolding::tryCollapseChainedMULs(Instruction *mul2, if (f < 0) mul1->src(0).mod *= Modifier(NV50_IR_MOD_NEG); } + mul1->saturate = mul2->saturate; return; } } - if (mul2->getDef(0)->refCount() == 1) { + if (mul2->getDef(0)->refCount() == 1 && !mul2->saturate) { // b = mul a, imm // d = mul b, c -> d = mul_x_imm a, c int s2, t2; |