llvm/test/CodeGen/Hexagon/circ-load-isel.ll
Krzysztof Parzyszek d1ae63365b [Hexagon] Remove dead nodes from SelectionDAG to avoid cycles
Recent changes to the instruction selection code exposed a problem where
a dead node was not removed on time. This node had both input and output
chains, which lead to an apparent cycle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269458 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-13 18:48:15 +00:00

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LLVM

; RUN: llc -march=hexagon < %s | FileCheck %s
; CHECK: = memw{{.*}}circ
target triple = "hexagon"
@l = external global i32, align 4
; Function Attrs: nounwind optsize
define void @circ2() #0 {
entry:
store i32 0, i32* @l, align 4
%0 = tail call i8* @llvm.hexagon.circ.ldw(i8* undef, i8* undef, i32 150995968, i32 4)
unreachable
}
declare i8* @llvm.hexagon.circ.ldw(i8*, i8*, i32, i32) #1
attributes #0 = { nounwind optsize }
attributes #1 = { argmemonly nounwind }