Merge pull request #1044 from visualfc/wasmsizes

compiler: check wasm sizes

Author: xushiwei

compiler/internal/build/build.go

@@ -153,7 +153,12 @@ func Do(args []string, conf *Config) ([]Package, error) {
 	}
 
 	prog := llssa.NewProgram(target)
-	sizes := prog.TypeSizes
+	sizes := func(sizes types.Sizes, compiler, arch string) types.Sizes {
+		if arch == "wasm" && os.Getenv("LLGO_WASM32") == "1" {
+			sizes = &types.StdSizes{4, 4}
+		}
+		return prog.TypeSizes(sizes)
+	}
 	dedup := packages.NewDeduper()
 	dedup.SetPreload(func(pkg *types.Package, files []*ast.File) {
 		if llruntime.SkipToBuild(pkg.Path()) {

compiler/internal/packages/load.go

@@ -705,7 +705,7 @@ func refineEx(dedup Deduper, ld *loader, response *packages.DriverResponse) ([]*
 // return an error. Clients may need to handle such errors before
 // proceeding with further analysis. The PrintErrors function is
 // provided for convenient display of all errors.
-func LoadEx(dedup Deduper, sizes func(types.Sizes) types.Sizes, cfg *Config, patterns ...string) ([]*Package, error) {
+func LoadEx(dedup Deduper, sizes func(sizes types.Sizes, compiler, arch string) types.Sizes, cfg *Config, patterns ...string) ([]*Package, error) {
 	ld := newLoader(cfg)
 	response, external, err := defaultDriver(&ld.Config, patterns...)
 	if err != nil {
@@ -732,7 +732,7 @@ func LoadEx(dedup Deduper, sizes func(types.Sizes) types.Sizes, cfg *Config, pat
 	}
 
 	if sizes != nil {
-		ld.sizes = sizes(ld.sizes)
+		ld.sizes = sizes(ld.sizes, response.Compiler, response.Arch)
 	}
 	return refineEx(dedup, ld, response)
 }