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Store expressions in switch case statements.

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This CL moves switch case statements to store Expression instead
of an IntLiteralExpression. The SEM is updated to store the
materialized constant instead of accessing the expression value
directly.

Bug: tint:1633
Change-Id: Id79dabb806be1049f775299732bc1c7b1bf0c05f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/106300
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
This commit is contained in:
dan sinclair
2022-10-19 00:43:41 +00:00
committed by Dawn LUCI CQ
parent 00aa7ef462
commit d32fbe07e7
19 changed files with 360 additions and 120 deletions
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2
src/tint/ast/case_statement.cc
View File

@@ -25,7 +25,7 @@ namespace tint::ast {
CaseStatement::CaseStatement(ProgramID pid,
NodeID nid,
const Source& src,
utils::VectorRef<const IntLiteralExpression*> s,
utils::VectorRef<const Expression*> s,
const BlockStatement* b)
: Base(pid, nid, src), selectors(std::move(s)), body(b) {
TINT_ASSERT(AST, body);

6
src/tint/ast/case_statement.h
View File

@@ -18,7 +18,7 @@
#include <vector>
#include "src/tint/ast/block_statement.h"
#include "src/tint/ast/int_literal_expression.h"
#include "src/tint/ast/expression.h"
namespace tint::ast {
@@ -34,7 +34,7 @@ class CaseStatement final : public Castable<CaseStatement, Statement> {
CaseStatement(ProgramID pid,
NodeID nid,
const Source& src,
utils::VectorRef<const IntLiteralExpression*> selectors,
utils::VectorRef<const Expression*> selectors,
const BlockStatement* body);
/// Move constructor
CaseStatement(CaseStatement&&);
@@ -50,7 +50,7 @@ class CaseStatement final : public Castable<CaseStatement, Statement> {
const CaseStatement* Clone(CloneContext* ctx) const override;
/// The case selectors, empty if none set
const utils::Vector<const IntLiteralExpression*, 4> selectors;
const utils::Vector<const Expression*, 4> selectors;
/// The case body
const BlockStatement* const body;