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27571a5d37
VSX has instructions lxsiwax/lxsdx that can load 32/64 bit value into VSX register cheaply. That patch makes it known to memory cost model, so the vectorization of the test case in pr30990 is beneficial. Differential Revision: https://reviews.llvm.org/D26713 llvm-svn: 288560
20 lines
647 B
LLVM
20 lines
647 B
LLVM
; RUN: opt < %s -cost-model -analyze -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 -mattr=+vsx | FileCheck %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-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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define i32 @loads(i32 %arg) {
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; CHECK: cost of 1 {{.*}} load
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load <4 x i8>, <4 x i8>* undef, align 1
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; CHECK: cost of 1 {{.*}} load
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load <8 x i8>, <8 x i8>* undef, align 1
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; CHECK: cost of 1 {{.*}} load
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load <2 x i16>, <2 x i16>* undef, align 2
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; CHECK: cost of 1 {{.*}} load
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load <4 x i16>, <4 x i16>* undef, align 2
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ret i32 undef
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}
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