diff options
Diffstat (limited to 'llvm/test/CodeGen/ARM/cxx-tlscc.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/cxx-tlscc.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/cxx-tlscc.ll b/llvm/test/CodeGen/ARM/cxx-tlscc.ll index 48cce4f01be..d49c61ab093 100644 --- a/llvm/test/CodeGen/ARM/cxx-tlscc.ll +++ b/llvm/test/CodeGen/ARM/cxx-tlscc.ll @@ -126,5 +126,27 @@ entry: ret void } +declare void @somefunc() +define cxx_fast_tlscc void @test_ccmismatch_notail() { +; A tail call is not possible here because somefunc does not preserve enough +; registers. +; CHECK-LABEL: test_ccmismatch_notail: +; CHECK-NOT: b _somefunc +; CHECK: bl _somefunc + tail call void @somefunc() + ret void +} + +declare cxx_fast_tlscc void @some_fast_tls_func() +define void @test_ccmismatch_tail() { +; We can perform a tail call here because some_fast_tls_func preserves all +; necessary registers (and more). +; CHECK-LABEL: test_ccmismatch_tail: +; CHECK-NOT: bl _some_fast_tls_func +; CHECK: b _some_fast_tls_func + tail call cxx_fast_tlscc void @some_fast_tls_func() + ret void +} + attributes #0 = { nounwind "no-frame-pointer-elim"="true" } attributes #1 = { nounwind } |
