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transform: optimize string / byte conversions #5492

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transform: optimize string / byte conversions #5492

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7901bf5
transform: add byte slice string equality test
jakebailey Jul 3, 2026
bd7d989
transform: avoid byte slice string equality allocations
jakebailey Jul 3, 2026
dcf3dac
transform: add byte slice string ordering test
jakebailey Jul 3, 2026
cb0fdfb
transform: avoid byte slice string ordering allocations
jakebailey Jul 3, 2026
a70e3f2
transform: add byte slice string length test
jakebailey Jul 3, 2026
2d2a743
transform: avoid byte slice string length allocations
jakebailey Jul 3, 2026
58a357c
transform: add more byte slice string tests
jakebailey Jul 3, 2026
15f6845
transform: avoid more byte slice string allocations
jakebailey Jul 3, 2026
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6 changes: 5 additions & 1 deletion transform/optimizer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,7 @@ func Optimize(mod llvm.Module, config *compileopts.Config) []error {

// Run TinyGo-specific optimization passes.
OptimizeStringToBytes(mod)
OptimizeStringFromBytes(mod)
maxStackSize := config.MaxStackAlloc()
OptimizeAllocs(mod, nil, maxStackSize, nil)
err = LowerInterfaces(mod, config)
Expand All @@ -90,6 +91,8 @@ func Optimize(mod llvm.Module, config *compileopts.Config) []error {
// The go coverage tool expects this header before any blocks.
fmt.Fprintln(os.Stderr, "mode: set")
}
OptimizeStringToBytes(mod)
OptimizeStringFromBytes(mod)
OptimizeAllocs(mod, config.Options.PrintAllocs, maxStackSize,
func(pos token.Position, reason string) {
var line string
Expand All @@ -103,10 +106,11 @@ func Optimize(mod llvm.Module, config *compileopts.Config) []error {
}
},
)
OptimizeStringToBytes(mod)
OptimizeStringEqual(mod)

} else {
OptimizeStringFromBytes(mod)

// Must be run at any optimization level.
err := LowerInterfaces(mod, config)
if err != nil {
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