| ; RUN: llc -verify-machineinstrs -mattr=-vsx -mattr=+altivec -mcpu=pwr7 < %s | FileCheck %s | |
| ; RUN: llc -verify-machineinstrs -mattr=+vsx -mattr=+altivec -mcpu=pwr7 < %s | FileCheck -check-prefix=CHECK-VSX %s | |
| target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" | |
| target triple = "powerpc64-unknown-linux-gnu" | |
| define i32 @test(<16 x i8> %v) nounwind { | |
| entry: | |
| %0 = bitcast <16 x i8> %v to i128 | |
| %1 = lshr i128 %0, 96 | |
| %2 = trunc i128 %1 to i32 | |
| ret i32 %2 | |
| } | |
| ; Verify that bitcast handles big-endian platforms correctly | |
| ; by checking we load the result from the correct offset | |
| ; CHECK: addi [[REGISTER:[0-9]+]], 1, -16 | |
| ; CHECK: stvx 2, 0, [[REGISTER]] | |
| ; CHECK: lwz 3, -16(1) | |
| ; CHECK: blr | |
| ; CHECK-VSX: addi [[REGISTER:[0-9]+]], 1, -16 | |
| ; CHECK-VSX: stxvd2x 34, 0, [[REGISTER]] | |
| ; CHECK-VSX: lwz 3, -16(1) | |
| ; CHECK-VSX: blr |