Files
tinygo/src/runtime/runtime.ll
T
Ayke van Laethem 539de9db9e Move interface method calls in Go from LLVM IR + documentation
This commit moves the itfmethod call implemented directly in LLVM IR to
a Go implementation in the runtime. Additionally, it fixes variable
names to be more obvious and adds a lot of documentation to explain how
interfaces actually work in TinyGo.

Code size changes for src/examples/hello:
nrf:  -144
unix: -93

I'm guessing this code size reduction is a result of removing the
'noinline' function attribute.
2018-08-26 23:40:11 +02:00

28 lines
847 B
LLVM

source_filename = "runtime/runtime.ll"
declare void @runtime.initAll()
declare void @main.main()
declare i8* @main.main$async(i8*)
declare void @runtime.scheduler(i8*)
; Will be changed to true if there are 'go' statements in the compiled program.
@has_scheduler = private unnamed_addr constant i1 false
define i32 @main() {
call void @runtime.initAll()
%has_scheduler = load i1, i1* @has_scheduler
; This branch will be optimized away. Only one of the targets will remain.
br i1 %has_scheduler, label %with_scheduler, label %without_scheduler
with_scheduler:
; Initialize main and run the scheduler.
%main = call i8* @main.main$async(i8* null)
call void @runtime.scheduler(i8* %main)
ret i32 0
without_scheduler:
; No scheduler is necessary. Call main directly.
call void @main.main()
ret i32 0
}