26 lines
845 B
LLVM
26 lines
845 B
LLVM
; RUN: llc -mattr=-vsx -mattr=+altivec -mcpu=pwr7 < %s | FileCheck %s
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; RUN: llc -mattr=+vsx -mattr=+altivec -mcpu=pwr7 < %s | FileCheck -check-prefix=CHECK-VSX %s
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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"
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target triple = "powerpc64-unknown-linux-gnu"
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define i32 @test(<16 x i8> %v) nounwind {
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entry:
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%0 = bitcast <16 x i8> %v to i128
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%1 = lshr i128 %0, 96
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%2 = trunc i128 %1 to i32
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ret i32 %2
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}
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; Verify that bitcast handles big-endian platforms correctly
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; by checking we load the result from the correct offset
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; CHECK: addi [[REGISTER:[0-9]+]], 1, -16
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; CHECK: stvx 2, 0, [[REGISTER]]
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; CHECK: lwz 3, -16(1)
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; CHECK: blr
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; CHECK-VSX: addi [[REGISTER:[0-9]+]], 1, -16
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; CHECK-VSX: stxvd2x 34, 0, [[REGISTER]]
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; CHECK-VSX: lwz 3, -16(1)
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; CHECK-VSX: blr
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