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llvm-project/llvm/test/Transforms/FunctionAttrs/operand-bundles-scc.ll

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[FunctionAttrs] Fix SCC logic around operand bundles FunctionAttrs does an "optimistic" analysis of SCCs as a unit, which means normally it is able to disregard calls from an SCC into itself. However, calls and invokes with operand bundles are allowed to have memory effects not fully described by the memory effects on the call target, so we can't be optimistic around operand-bundled calls from an SCC into itself. llvm-svn: 260244
2016-02-10 02:40:40 +08:00
; RUN: opt -S -functionattrs < %s | FileCheck %s
define void @f() {
; CHECK-LABEL: define void @f() {
call void @g() [ "unknown"() ]
ret void
}
define void @g() {
; CHECK-LABEL: define void @g() {
call void @f()
ret void
}