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Diffstat (limited to 'test/CodeGen/PowerPC/2012-10-12-bitcast.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/2012-10-12-bitcast.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/2012-10-12-bitcast.ll b/test/CodeGen/PowerPC/2012-10-12-bitcast.ll new file mode 100644 index 00000000000..f841c5fb92e --- /dev/null +++ b/test/CodeGen/PowerPC/2012-10-12-bitcast.ll @@ -0,0 +1,20 @@ +; RUN: llc -mattr=+altivec < %s | FileCheck %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 + |