| ; RUN: opt -scalarrepl -S < %s | FileCheck %s | |
| ; rdar://9786827 | |
| ; SROA should be able to handle the mixed types and eliminate the allocas here. | |
| ; TODO: Currently it does this by falling back to integer "bags of bits". | |
| ; With enough cleverness, it should be possible to convert between <3 x i32> | |
| ; and <2 x i64> by using a combination of a bitcast and a shuffle. | |
| ; CHECK: { | |
| ; CHECK-NOT: alloca | |
| ; CHECK: } | |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32" | |
| target triple = "i386-apple-darwin11.0.0" | |
| define <2 x i64> @foo() nounwind { | |
| entry: | |
| %retval = alloca <3 x i32>, align 16 | |
| %z = alloca <4 x i32>, align 16 | |
| %tmp = load <4 x i32>* %z | |
| %tmp1 = shufflevector <4 x i32> %tmp, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2> | |
| store <3 x i32> %tmp1, <3 x i32>* %retval | |
| %0 = bitcast <3 x i32>* %retval to <2 x i64>* | |
| %1 = load <2 x i64>* %0, align 1 | |
| ret <2 x i64> %1 | |
| } |