Merging upstream version 125.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 21 insertions, 4 deletions

diff --git a/third_party/rust/naga/src/back/wgsl/writer.rs b/third_party/rust/naga/src/back/wgsl/writer.rs
index c737934f5e..3039cbbbe4 100644
--- a/third_party/rust/naga/src/back/wgsl/writer.rs
+++ b/third_party/rust/naga/src/back/wgsl/writer.rs
@@ -109,7 +109,7 @@ impl<W: Write> Writer<W> {
         self.reset(module);
 
         // Save all ep result types
-        for (_, ep) in module.entry_points.iter().enumerate() {
+        for ep in &module.entry_points {
             if let Some(ref result) = ep.function.result {
                 self.ep_results.push((ep.stage, result.ty));
             }
@@ -593,6 +593,7 @@ impl<W: Write> Writer<W> {
                 }
                 write!(self.out, ">")?;
             }
+            TypeInner::AccelerationStructure => write!(self.out, "acceleration_structure")?,
             _ => {
                 return Err(Error::Unimplemented(format!("write_value_type {inner:?}")));
             }
@@ -1095,16 +1096,24 @@ impl<W: Write> Writer<W> {
                     // value can only be expressed in WGSL using AbstractInt and
                     // a unary negation operator.
                     if value == i32::MIN {
-                        write!(self.out, "i32(-2147483648)")?;
+                        write!(self.out, "i32({})", value)?;
                     } else {
                         write!(self.out, "{}i", value)?;
                     }
                 }
                 crate::Literal::Bool(value) => write!(self.out, "{}", value)?,
                 crate::Literal::F64(value) => write!(self.out, "{:?}lf", value)?,
-                crate::Literal::I64(_) => {
-                    return Err(Error::Custom("unsupported i64 literal".to_string()));
+                crate::Literal::I64(value) => {
+                    // `-9223372036854775808li` is not valid WGSL. The most negative `i64`
+                    // value can only be expressed in WGSL using AbstractInt and
+                    // a unary negation operator.
+                    if value == i64::MIN {
+                        write!(self.out, "i64({})", value)?;
+                    } else {
+                        write!(self.out, "{}li", value)?;
+                    }
                 }
+                crate::Literal::U64(value) => write!(self.out, "{:?}lu", value)?,
                 crate::Literal::AbstractInt(_) | crate::Literal::AbstractFloat(_) => {
                     return Err(Error::Custom(
                         "Abstract types should not appear in IR presented to backends".into(),
@@ -1828,6 +1837,14 @@ const fn scalar_kind_str(scalar: crate::Scalar) -> &'static str {
             width: 4,
         } => "u32",
         Scalar {
+            kind: Sk::Sint,
+            width: 8,
+        } => "i64",
+        Scalar {
+            kind: Sk::Uint,
+            width: 8,
+        } => "u64",
+        Scalar {
             kind: Sk::Bool,
             width: 1,
         } => "bool",