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compiler: let escape analysis look across bitcasts

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This is necessary to avoid memory allocation in the math packages in
some functions.
This commit is contained in:
Ayke van Laethem
2018-11-16 23:02:09 +01:00
parent 46755b774e
commit 100901574b
1 changed files with 5 additions and 0 deletions
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compiler/optimizer.go
+5
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@@ -207,6 +207,11 @@ func (c *Compiler) doesEscape(value llvm.Value) bool {
if c.doesEscape(use) { if c.doesEscape(use) {
return true return true
} }
} else if use.IsABitCastInst() != nilValue {
// A bitcast escapes if the casted-to value escapes.
if c.doesEscape(use) {
return true
}
} else if use.IsALoadInst() != nilValue { } else if use.IsALoadInst() != nilValue {
// Load does not escape. // Load does not escape.
} else if use.IsAStoreInst() != nilValue { } else if use.IsAStoreInst() != nilValue {