<div dir="ltr"><div class="gmail_quote"><div dir="ltr">On Mon, Jul 16, 2018 at 7:29 AM Karol Herbst <<a href="mailto:kherbst@redhat.com">kherbst@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">From: Rob Clark <<a href="mailto:robdclark@gmail.com" target="_blank">robdclark@gmail.com</a>><br>
<br>
v2 (Karol Herbst <<a href="mailto:kherbst@redhat.com" target="_blank">kherbst@redhat.com</a>>):<br>
make compatible with 64 bit floats<br>
fix isfinite<br>
<br>
Signed-off-by: Karol Herbst <<a href="mailto:kherbst@redhat.com" target="_blank">kherbst@redhat.com</a>><br>
---<br>
src/compiler/spirv/vtn_alu.c | 32 ++++++++++++++++++++++++++++++++<br>
1 file changed, 32 insertions(+)<br>
<br>
diff --git a/src/compiler/spirv/vtn_alu.c b/src/compiler/spirv/vtn_alu.c<br>
index 5a0347989e9..5db6c7f0a87 100644<br>
--- a/src/compiler/spirv/vtn_alu.c<br>
+++ b/src/compiler/spirv/vtn_alu.c<br>
@@ -583,6 +583,38 @@ vtn_handle_alu(struct vtn_builder *b, SpvOp opcode,<br>
break;<br>
}<br>
<br>
+ case SpvOpIsFinite: {<br>
+ nir_ssa_def *inf = nir_imm_floatN_t(&b->nb, INFINITY, src[0]->bit_size);<br>
+ nir_ssa_def *isNumber = nir_feq(&b->nb, src[0], src[0]);<br></blockquote><div><br></div><div>Please use snake_case.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
+ nir_ssa_def *isNotInf = nir_ine(&b->nb, nir_fabs(&b->nb, src[0]), inf);<br></blockquote><div><br></div><div>Same here.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
+ val->ssa->def = nir_iand(&b->nb, isNumber, isNotInf);<br>
+ break;<br>
+ }<br>
+<br>
+ case SpvOpIsNormal: {<br>
+ unsigned bit_size = src[0]->bit_size;<br>
+<br>
+ uint32_t m;<br>
+ if (bit_size == 64)<br>
+ m = 11;<br>
+ else if (bit_size == 32)<br>
+ m = 8;<br>
+ else if (bit_size == 16)<br>
+ m = 5;<br>
+ else<br>
+ assert(!"unknown float type");<br>
+<br>
+ nir_ssa_def *shift = nir_imm_int(&b->nb, bit_size - m - 1);<br>
+ nir_ssa_def *abs = nir_fabs(&b->nb, src[0]);<br>
+ nir_ssa_def *exp = nir_iadd(&b->nb,<br>
+ nir_ushr(&b->nb, abs, shift),<br>
+ nir_imm_intN_t(&b->nb, -1, bit_size));<br>
+ val->ssa->def = nir_ult(&b->nb,<br>
+ exp,<br>
+ nir_imm_intN_t(&b->nb, (1 << m) - 2, bit_size));<br>
+ break;<br>
+ }<br>
+<br>
case SpvOpFUnordEqual:<br>
case SpvOpFUnordNotEqual:<br>
case SpvOpFUnordLessThan:<br>
-- <br>
2.17.1<br>
<br>
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</blockquote></div></div>