tinygo/transform/testdata/stacksize.out.ll
Ayke van Laethem a21a039ac7 arm: automatically determine stack sizes
This is a big change that will determine the stack size for many
goroutines automatically. Functions that aren't recursive and don't call
function pointers can in many cases have an automatically determined
worst case stack size. This is useful, as the stack size is usually much
lower than the previous hardcoded default of 1024 bytes: somewhere
around 200-500 bytes is common.

A side effect of this change is that the default stack sizes (including
the stack size for other architectures such as AVR) can now be changed
in the config JSON file, making it tunable per application.
2020-08-27 19:23:22 +02:00

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656 Б
LLVM

target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armv7m-none-eabi"
@"internal/task.stackSizes" = global [1 x i32] [i32 1024], section ".tinygo_stacksizes"
declare i32 @"internal/task.getGoroutineStackSize"(i32, i8*, i8*)
declare void @"runtime.run$1$gowrapper"(i8*)
declare void @"internal/task.start"(i32, i8*, i32)
define void @Reset_Handler() {
entry:
%stacksize1 = load i32, i32* getelementptr inbounds ([1 x i32], [1 x i32]* @"internal/task.stackSizes", i32 0, i32 0)
call void @"internal/task.start"(i32 ptrtoint (void (i8*)* @"runtime.run$1$gowrapper" to i32), i8* undef, i32 %stacksize1)
ret void
}