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Diffstat (limited to 'test/CodeGen/X86/fold-vector-sext-crash.ll')
| -rw-r--r-- | test/CodeGen/X86/fold-vector-sext-crash.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fold-vector-sext-crash.ll b/test/CodeGen/X86/fold-vector-sext-crash.ll new file mode 100644 index 0000000000..52ea7a912b --- /dev/null +++ b/test/CodeGen/X86/fold-vector-sext-crash.ll @@ -0,0 +1,12 @@ +; RUN: llc < %s -mcpu=core-avx-i -mtriple=i386-unknown-linux-gnu -mattr=+avx,+popcnt,+cmov + +; Make sure that we don't introduce illegal build_vector dag nodes +; when trying to fold a sign_extend of a constant build_vector. +; After r200234 the test case below was crashing the compiler with an assertion failure +; due to an illegal build_vector of type MVT::v4i64. + +define <4 x i64> @foo(<4 x i64> %A) { + %1 = select <4 x i1> <i1 true, i1 true, i1 false, i1 false>, <4 x i64> %A, <4 x i64><i64 undef, i64 undef, i64 0, i64 0> + ret <4 x i64> %1 +} + |