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Avoid creating canonical induction variables for non-native types.

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For example, on 32-bit architecture, don't promote all uses of the IV
to 64-bits just because one use is a 64-bit cast.
Alternate implementation of the patch by Arnaud de Grandmaison.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127884 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2011-03-18 16:50:32 +00:00
parent 84161c2f68
commit 5fd5b125ff
20 changed files with 30 additions and 19 deletions
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2
test/Transforms/LoopSimplify/merge-exits.ll
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@@ -7,7 +7,7 @@
; that indvars can promote the induction variable to i64
; without needing casts.
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"
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-n:32:64"
define float @t(float* %pTmp1, float* %peakWeight, i32 %bandEdgeIndex) nounwind {
entry: