From cf113bdb53a59dbd6fba56f0b18c26ae189f794b Mon Sep 17 00:00:00 2001
From: teoxoy <28601907+teoxoy@users.noreply.github.com>
Date: Mon, 2 Oct 2023 17:35:41 +0200
Subject: [PATCH] [spv-in] translate ModfStruct & FrexpStruct to their IR
 equivalents

---
 src/front/spv/mod.rs | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/front/spv/mod.rs b/src/front/spv/mod.rs
index b5feb73203..083205a45b 100644
--- a/src/front/spv/mod.rs
+++ b/src/front/spv/mod.rs
@@ -2949,7 +2949,7 @@ impl<I: Iterator<Item = u32>> Frontend<I> {
                         Glo::InverseSqrt => Mf::InverseSqrt,
                         Glo::MatrixInverse => Mf::Inverse,
                         Glo::Determinant => Mf::Determinant,
-                        Glo::Modf => Mf::Modf,
+                        Glo::ModfStruct => Mf::Modf,
                         Glo::FMin | Glo::UMin | Glo::SMin | Glo::NMin => Mf::Min,
                         Glo::FMax | Glo::UMax | Glo::SMax | Glo::NMax => Mf::Max,
                         Glo::FClamp | Glo::UClamp | Glo::SClamp | Glo::NClamp => Mf::Clamp,
@@ -2957,7 +2957,7 @@ impl<I: Iterator<Item = u32>> Frontend<I> {
                         Glo::Step => Mf::Step,
                         Glo::SmoothStep => Mf::SmoothStep,
                         Glo::Fma => Mf::Fma,
-                        Glo::Frexp => Mf::Frexp, //TODO: FrexpStruct?
+                        Glo::FrexpStruct => Mf::Frexp,
                         Glo::Ldexp => Mf::Ldexp,
                         Glo::Length => Mf::Length,
                         Glo::Distance => Mf::Distance,
@@ -2978,7 +2978,16 @@ impl<I: Iterator<Item = u32>> Frontend<I> {
                         Glo::UnpackSnorm2x16 => Mf::Unpack2x16snorm,
                         Glo::FindILsb => Mf::FindLsb,
                         Glo::FindUMsb | Glo::FindSMsb => Mf::FindMsb,
-                        _ => return Err(Error::UnsupportedExtInst(inst_id)),
+                        // TODO: https://github.com/gfx-rs/naga/issues/2526
+                        Glo::Modf | Glo::Frexp => return Err(Error::UnsupportedExtInst(inst_id)),
+                        Glo::IMix
+                        | Glo::PackDouble2x32
+                        | Glo::UnpackDouble2x32
+                        | Glo::InterpolateAtCentroid
+                        | Glo::InterpolateAtSample
+                        | Glo::InterpolateAtOffset => {
+                            return Err(Error::UnsupportedExtInst(inst_id))
+                        }
                     };
 
                     let arg_count = fun.argument_count();