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Krzysztof Parzyszek 9d0cca600a [Hexagon] Enforce LLSC packetization rules
Ensure that load locked and store conditional instructions are only
packetized with ALU32 instructions.

Patch by Ben Craig.

llvm-svn: 279272
2016-08-19 16:57:05 +00:00

13 lines
300 B
LLVM

; RUN: llc -march=hexagon < %s
target triple = "hexagon-unknown--elf"
; Function Attrs: norecurse nounwind
define void @_Z4lockv() #0 {
entry:
%__shared_owners = alloca i32, align 4
%0 = cmpxchg weak i32* %__shared_owners, i32 0, i32 1 seq_cst seq_cst
ret void
}
attributes #0 = { nounwind }