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Teach the cost model about the optimization in r169904: Truncation of induction variables costs the same as scalar trunc.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170051 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2012-12-13 00:21:03 +00:00
parent 0fabd08066
commit 807dad62a0
3 changed files with 21 additions and 3 deletions
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test/Transforms/LoopVectorize/X86/conversion-cost.ll
+1 -1
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@@ -4,7 +4,7 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
target triple = "x86_64-apple-macosx10.8.0"
;CHECK: @conversion_cost1
;CHECK: store <2 x i8>
;CHECK: store <8 x i8>
;CHECK: ret
define i32 @conversion_cost1(i32 %n, i8* nocapture %A, float* nocapture %B) nounwind uwtable ssp {
%1 = icmp sgt i32 %n, 3