diff options
Diffstat (limited to 'test/CodeGen/X86/splat-for-size.ll')
| -rw-r--r-- | test/CodeGen/X86/splat-for-size.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/splat-for-size.ll b/test/CodeGen/X86/splat-for-size.ll index c052ad2aa146..635aa821d78a 100644 --- a/test/CodeGen/X86/splat-for-size.ll +++ b/test/CodeGen/X86/splat-for-size.ll @@ -138,4 +138,18 @@ define <32 x i8> @splat_v32i8(<32 x i8> %x) #0 { ; CHECK: retq } +; PR23259: Verify that ISel doesn't crash with a 'fatal error in backend' +; due to a missing AVX pattern to select a v2i64 X86ISD::BROADCAST of a +; loadi64 with multiple uses. + +@A = common global <3 x i64> zeroinitializer, align 32 + +define <8 x i64> @pr23259() #0 { +entry: + %0 = load <4 x i64>, <4 x i64>* bitcast (<3 x i64>* @A to <4 x i64>*), align 32 + %1 = shufflevector <4 x i64> %0, <4 x i64> undef, <3 x i32> <i32 undef, i32 undef, i32 2> + %shuffle = shufflevector <3 x i64> <i64 1, i64 undef, i64 undef>, <3 x i64> %1, <8 x i32> <i32 5, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0> + ret <8 x i64> %shuffle +} + attributes #0 = { optsize } |