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tint: Add f16 support for parts of float built-in, part 1

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This patch add f16 support for a major part of numeric built-in, and
implement corresponding unittests for resolver and backends. This patch
also enable f16 constant evaluation for unary minus operator, `atan2`
and `clamp`.

The following numeric built-ins are not supported yet:
* frexp
* modf

The end-to-end tests for f16 built-in are not added yet.

Bug: tint:1473, tint:1502
Change-Id: If807185617b21c510a1a9c371179a60800c4f875
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96722
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
This commit is contained in:
Zhaoming Jiang
2022-07-29 11:41:51 +00:00
committed by Dawn LUCI CQ
parent 65dcdcbad0
commit 6fe1f515d4
59 changed files with 4136 additions and 2714 deletions
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8
tools/src/tint/intrinsic/gen/gen.go
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@@ -448,6 +448,8 @@ func SplitDisplayName(displayName string) []string {
// If the type is not a composite type, then the fully qualified name is returned
func ElementType(fqn sem.FullyQualifiedName) sem.FullyQualifiedName {
switch fqn.Target.GetName() {
case "vec2", "vec3", "vec4":
return fqn.TemplateArguments[0].(sem.FullyQualifiedName)
case "vec":
return fqn.TemplateArguments[1].(sem.FullyQualifiedName)
case "mat":
@@ -462,12 +464,16 @@ func ElementType(fqn sem.FullyQualifiedName) sem.FullyQualifiedName {
// fully qualified name.
func DeepestElementType(fqn sem.FullyQualifiedName) sem.FullyQualifiedName {
switch fqn.Target.GetName() {
case "vec2", "vec3", "vec4":
return fqn.TemplateArguments[0].(sem.FullyQualifiedName)
case "vec":
return fqn.TemplateArguments[1].(sem.FullyQualifiedName)
case "mat":
return DeepestElementType(fqn.TemplateArguments[2].(sem.FullyQualifiedName))
case "array":
return DeepestElementType(fqn.TemplateArguments[0].(sem.FullyQualifiedName))
case "ptr":
return DeepestElementType(fqn.TemplateArguments[1].(sem.FullyQualifiedName))
}
return fqn
}
@@ -489,7 +495,7 @@ func IsDeclarable(fqn sem.FullyQualifiedName) bool {
}
// OverloadUsesF16 returns true if the overload uses the f16 type anywhere in the signature.
func OverloadUsesF16(overload *sem.Overload, typename string) bool {
func OverloadUsesF16(overload *sem.Overload) bool {
for _, param := range overload.Parameters {
if DeepestElementType(param.Type).Target.GetName() == "f16" {
return true