diff options
Diffstat (limited to 'test/CodeGen/ARM/vmul.ll')
| -rw-r--r-- | test/CodeGen/ARM/vmul.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/vmul.ll b/test/CodeGen/ARM/vmul.ll index 1780d6e..61d89bb 100644 --- a/test/CodeGen/ARM/vmul.ll +++ b/test/CodeGen/ARM/vmul.ll @@ -514,3 +514,14 @@ entry: store <8 x i8> %10, <8 x i8>* %11, align 8 ret void } + +; If one operand has a zero-extend and the other a sign-extend, vmull +; cannot be used. +define i16 @vmullWithInconsistentExtensions(<8 x i8> %vec) { +; CHECK: vmullWithInconsistentExtensions +; CHECK-NOT: vmull.s8 + %1 = sext <8 x i8> %vec to <8 x i16> + %2 = mul <8 x i16> %1, <i16 255, i16 255, i16 255, i16 255, i16 255, i16 255, i16 255, i16 255> + %3 = extractelement <8 x i16> %2, i32 0 + ret i16 %3 +} |
