xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/2012-10-12-bitcast.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mattr=-vsx -mattr=+altivec -mcpu=pwr7 < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; RUN: llc -mattr=+vsx -mattr=+altivec -mcpu=pwr7 < %s | FileCheck -check-prefix=CHECK-VSX %s
3*9880d681SAndroid Build Coastguard Workertarget 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"
4*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc64-unknown-linux-gnu"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine i32 @test(<16 x i8> %v) nounwind {
7*9880d681SAndroid Build Coastguard Workerentry:
8*9880d681SAndroid Build Coastguard Worker  %0 = bitcast <16 x i8> %v to i128
9*9880d681SAndroid Build Coastguard Worker  %1 = lshr i128 %0, 96
10*9880d681SAndroid Build Coastguard Worker  %2 = trunc i128 %1 to i32
11*9880d681SAndroid Build Coastguard Worker  ret i32 %2
12*9880d681SAndroid Build Coastguard Worker}
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Worker; Verify that bitcast handles big-endian platforms correctly
15*9880d681SAndroid Build Coastguard Worker; by checking we load the result from the correct offset
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Worker; CHECK: addi [[REGISTER:[0-9]+]], 1, -16
18*9880d681SAndroid Build Coastguard Worker; CHECK: stvx 2, 0, [[REGISTER]]
19*9880d681SAndroid Build Coastguard Worker; CHECK: lwz 3, -16(1)
20*9880d681SAndroid Build Coastguard Worker; CHECK: blr
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Worker; CHECK-VSX: addi [[REGISTER:[0-9]+]], 1, -16
23*9880d681SAndroid Build Coastguard Worker; CHECK-VSX: stxvd2x 34, 0, [[REGISTER]]
24*9880d681SAndroid Build Coastguard Worker; CHECK-VSX: lwz 3, -16(1)
25*9880d681SAndroid Build Coastguard Worker; CHECK-VSX: blr
26