diff options
Diffstat (limited to 'compiler/channel.go')
| -rw-r--r-- | compiler/channel.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/compiler/channel.go b/compiler/channel.go index ac16510c6..de7b12e29 100644 --- a/compiler/channel.go +++ b/compiler/channel.go @@ -15,6 +15,12 @@ func (c *Compiler) emitMakeChan(frame *Frame, expr *ssa.MakeChan) llvm.Value { elementSize := c.targetData.TypeAllocSize(c.getLLVMType(expr.Type().(*types.Chan).Elem())) elementSizeValue := llvm.ConstInt(c.uintptrType, elementSize, false) bufSize := c.getValue(frame, expr.Size) + c.emitChanBoundsCheck(frame, elementSize, bufSize, expr.Size.Type().Underlying().(*types.Basic), expr.Pos()) + if bufSize.Type().IntTypeWidth() < c.uintptrType.IntTypeWidth() { + bufSize = c.builder.CreateZExt(bufSize, c.uintptrType, "") + } else if bufSize.Type().IntTypeWidth() > c.uintptrType.IntTypeWidth() { + bufSize = c.builder.CreateTrunc(bufSize, c.uintptrType, "") + } return c.createRuntimeCall("chanMake", []llvm.Value{elementSizeValue, bufSize}, "") } |