mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
a62270de2c
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
35 lines
1.1 KiB
LLVM
35 lines
1.1 KiB
LLVM
; RUN: opt -S -rewrite-statepoints-for-gc < %s | FileCheck %s
|
|
; RUN: opt -S -passes=rewrite-statepoints-for-gc < %s | FileCheck %s
|
|
;
|
|
; Regression test:
|
|
; After the rewritable callsite collection if any callsite was found
|
|
; in a block that was reported unreachable by DominanceTree then
|
|
; removeUnreachableBlocks() was called. But it is stronger than
|
|
; DominatorTree::isReachableFromEntry(), i.e. removeUnreachableBlocks
|
|
; can remove some blocks for which isReachableFromEntry() returns true.
|
|
; This resulted in stale pointers to the collected but removed
|
|
; callsites. Such stale pointers caused crash when accessed.
|
|
declare void @f(i8 addrspace(1)* %obj)
|
|
|
|
define void @test(i8 addrspace(1)* %arg) gc "statepoint-example" {
|
|
; CHECK-LABEL: test(
|
|
; CHECK-NEXT: @f
|
|
call void @f(i8 addrspace(1)* %arg) #1
|
|
br i1 true, label %not_zero, label %zero
|
|
|
|
not_zero:
|
|
ret void
|
|
|
|
; This block is reachable but removed by removeUnreachableBlocks()
|
|
zero:
|
|
; CHECK-NOT: @f
|
|
call void @f(i8 addrspace(1)* %arg) #1
|
|
ret void
|
|
|
|
unreach:
|
|
call void @f(i8 addrspace(1)* %arg) #1
|
|
ret void
|
|
}
|
|
|
|
attributes #1 = { norecurse noimplicitfloat }
|