llvm/test/Transforms/InstCombine/nothrow.ll
Chris Lattner aab6ec49d2 calls in nothrow functions can be marked nothrow even if the callee
is not known to be nothrow.  This allows readnone/readonly functions
to be deleted even if we don't know whether the callee can throw.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71676 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13 17:39:14 +00:00

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LLVM

; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep call
; rdar://6880732
declare double @t1(i32) readonly
define void @t2() nounwind {
call double @t1(i32 42) ;; dead call even though callee is not nothrow.
ret void
}