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Add a stub for the x86 cost model impl. Implement a basic cost rule for inserting/extracting from XMM registers.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167333 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2012-11-02 23:27:16 +00:00
parent 4b5cde2623
commit 0c31e43ff3
3 changed files with 51 additions and 2 deletions
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33
test/Analysis/CostModel/X86/insert-extract-at-zero.ll Normal file
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | 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-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.8.0"
define i32 @insert-extract-at-zero-idx(i32 %arg, float %fl) {
;CHECK: cost of 0 {{.*}} extract
%A = extractelement <4 x float> undef, i32 0
;CHECK: cost of 1 {{.*}} extract
%B = extractelement <4 x i32> undef, i32 0
;CHECK: cost of 1 {{.*}} extract
%C = extractelement <4 x float> undef, i32 1
;CHECK: cost of 0 {{.*}} extract
%D = extractelement <8 x float> undef, i32 0
;CHECK: cost of 1 {{.*}} extract
%E = extractelement <8 x float> undef, i32 1
;CHECK: cost of 1 {{.*}} extract
%F = extractelement <8 x float> undef, i32 %arg
;CHECK: cost of 0 {{.*}} insert
%G = insertelement <4 x float> undef, float %fl, i32 0
;CHECK: cost of 1 {{.*}} insert
%H = insertelement <4 x float> undef, float %fl, i32 1
;CHECK: cost of 1 {{.*}} insert
%I = insertelement <4 x i32> undef, i32 %arg, i32 0
;CHECK: cost of 0 {{.*}} insert
%J = insertelement <4 x double> undef, double undef, i32 0
ret i32 0
}