compiler: avoid all debug info with -no-debug

compiler/compiler.go

@@ -110,7 +110,9 @@ func NewCompiler(pkgName string, config Config) (*Compiler, error) {
 	c.mod.SetTarget(config.Triple)
 	c.mod.SetDataLayout(c.targetData.String())
 	c.builder = c.ctx.NewBuilder()
+	if c.Debug {
 		c.dibuilder = llvm.NewDIBuilder(c.mod)
+	}
 
 	c.uintptrType = c.ctx.IntType(c.targetData.PointerSize() * 8)
 	if c.targetData.PointerSize() <= 4 {
@@ -214,6 +216,7 @@ func (c *Compiler) Compile(mainPath string) error {
 	c.ir.SimpleDCE()
 
 	// Initialize debug information.
+	if c.Debug {
 		c.cu = c.dibuilder.CreateCompileUnit(llvm.DICompileUnit{
 			Language:  llvm.DW_LANG_Go,
 			File:      mainPath,
@@ -221,6 +224,7 @@ func (c *Compiler) Compile(mainPath string) error {
 			Producer:  "TinyGo",
 			Optimized: true,
 		})
+	}
 
 	var frames []*Frame
 
@@ -373,6 +377,7 @@ func (c *Compiler) Compile(mainPath string) error {
 	c.mod.NamedFunction("runtime.scheduler").SetLinkage(llvm.ExternalLinkage)
 
 	// see: https://reviews.llvm.org/D18355
+	if c.Debug {
 		c.mod.AddNamedMetadataOperand("llvm.module.flags",
 			c.ctx.MDNode([]llvm.Metadata{
 				llvm.ConstInt(c.ctx.Int32Type(), 1, false).ConstantAsMetadata(), // Error on mismatch
@@ -381,6 +386,7 @@ func (c *Compiler) Compile(mainPath string) error {
 			}),
 		)
 		c.dibuilder.Finalize()
+	}
 
 	return nil
 }