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[CaptureTracking] Add a test case for pointer cmpxchg

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This test builds on 261250 (IR support for cmpxchg of pointers) and 261245 (capture tracking support for cmpxchg) to show that correctly analyze the capturing of pointers in a cmpxchg of pointer type.

llvm-svn: 261284
This commit is contained in:
Philip Reames 2016-02-19 00:13:09 +00:00
parent 2d78d97ccc
commit fd1b93f5a6
1 changed files with 6 additions and 0 deletions
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6
test/Transforms/FunctionAttrs/nocapture.ll
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@ -199,6 +199,12 @@ define void @test_cmpxchg(i32* %p) {
ret void
}
; CHECK: define void @test_cmpxchg_ptr(i32** nocapture %p, i32* %q)
define void @test_cmpxchg_ptr(i32** %p, i32* %q) {
cmpxchg i32** %p, i32* null, i32* %q acquire monotonic
ret void
}
; CHECK: define void @test_atomicrmw(i32* nocapture %p)
define void @test_atomicrmw(i32* %p) {
atomicrmw add i32* %p, i32 1 seq_cst