tinygo/transform
Ayke van Laethem ab47cea055 transform: improve GC stack slot pass to work around a bug
Bug 1790 ("musttail call must precede a ret with an optional bitcast")
is caused by the GC stack slot pass inserting a store instruction
between a musttail call and a return instruction. This is not allowed in
LLVM IR.

One solution would be to remove the musttail. That would probably work,
but 1) the go-llvm API doesn't support this and 2) this might have
unforeseen consequences. What I've done in this commit is to move the
store instruction to a position earlier in the basic block, just after
the last access to the GC stack slot alloca.

Thanks to @fgsch for a very small repro, which I've used as a regression
test.
2021-08-04 20:06:59 +02:00
..
testdata transform: improve GC stack slot pass to work around a bug 2021-08-04 20:06:59 +02:00
allocs.go main: add -print-allocs flag that lets you print all heap allocations 2021-04-22 19:53:42 +02:00
allocs_test.go transform: split interface and reflect lowering 2021-05-03 20:10:49 +02:00
coroutines.go transform: show better error message in coroutines lowering 2021-03-05 14:42:43 +01:00
errors.go refactor coroutine lowering and tasks 2020-03-17 12:16:10 +01:00
func-lowering.go compiler: decouple func lowering from interface type codes 2021-04-12 12:07:42 +02:00
func-lowering_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
gc.go transform: improve GC stack slot pass to work around a bug 2021-08-04 20:06:59 +02:00
gc_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
globals.go compiler: add function and global section pragmas 2021-06-24 15:00:30 +02:00
globals_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
goroutine_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
interface-lowering.go compiler: refactor method names 2021-06-17 12:17:32 +02:00
interface-lowering_test.go transform: split interface and reflect lowering 2021-05-03 20:10:49 +02:00
interrupt.go Support chained interrupt handlers 2021-05-25 20:44:49 +02:00
interrupt_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
llvm.go runtime/fe310: add support for PLIC interrupts 2020-01-27 19:58:39 +01:00
maps.go all: move OptimizeMaps to transforms and add tests 2019-09-15 21:26:27 +02:00
maps_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
optimizer.go transform: split interface and reflect lowering 2021-05-03 20:10:49 +02:00
panic.go compiler: move ReplacePanicsWithTrap pass to transforms 2019-11-16 18:41:28 +01:00
panic_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
reflect.go transform: split interface and reflect lowering 2021-05-03 20:10:49 +02:00
reflect_test.go transform: split interface and reflect lowering 2021-05-03 20:10:49 +02:00
rtcalls.go compiler: refactor method names 2021-06-17 12:17:32 +02:00
rtcalls_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
stacksize.go arm: automatically determine stack sizes 2020-08-27 19:23:22 +02:00
stacksize_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00
transform.go all: refactor heap-to-stack transform into the transform package 2019-09-15 21:26:27 +02:00
transform_test.go transform: split interface and reflect lowering 2021-05-03 20:10:49 +02:00
util.go compiler: move OptimizeStringToBytes to transform package 2019-09-22 08:25:50 +02:00
wasm-abi.go builder: add optsize attribute while building the package 2021-04-08 11:40:59 +02:00
wasm-abi_test.go transform: move tests to transform_test package 2021-04-22 19:53:42 +02:00