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Test case for r191314.

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Some supplemental information for r191314: We would like to make sure SLP Vectorizer will not try to vectorize tiny trees even with a negative threshold so we set the cost to INT_MAX. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191327 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Yi Jiang 2013-09-24 19:33:53 +00:00
parent 7e720f485f
commit e64f5e0026
1 changed files with 27 additions and 0 deletions
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test/Transforms/SLPVectorizer/X86/tiny-tree.ll Normal file
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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-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"
; RUN: opt < %s -basicaa -slp-vectorizer -slp-threshold=-5 -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 | FileCheck %s
%t1 = type {%t2, double, double, i8 }
%t2 = type { double, double, double }
%t3 = type { double, double, i8 }
; We check that SLP vectorizer will not try to vectorize tiny trees
; even with a negative threshold.
; CHECK: tiny_tree_test
; CHECK-NOT: <2 x double>
; CHECK: ret
define void @tiny_tree_test(%t3* %this, %t1* %m) align 2 {
entry:
%m41.i = getelementptr inbounds %t1* %m, i64 0, i32 0, i32 1
%0 = load double* %m41.i, align 8
%_tx = getelementptr inbounds %t3* %this, i64 0, i32 0
store double %0, double* %_tx, align 8
%m42.i = getelementptr inbounds %t1* %m, i64 0, i32 0, i32 2
%1 = load double* %m42.i, align 8
%_ty = getelementptr inbounds %t3* %this, i64 0, i32 1
store double %1, double* %_ty, align 8
ret void
}