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Imported Upstream version 5.18.0.225

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Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5
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Xamarin Public Jenkins (auto-signing)
2018-12-21 19:01:49 +00:00
parent 32d52ae4ca
commit f32dbaf0b2
28477 changed files with 3866961 additions and 38 deletions
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24
external/llvm/test/Transforms/LoopStrengthReduce/share_ivs.ll vendored Normal file
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; RUN: opt < %s -loop-reduce -S | grep phi | count 1
; This testcase should have ONE stride 18 indvar, the other use should have a
; loop invariant value (B) added to it inside of the loop, instead of having
; a whole indvar based on B for it.
declare i1 @cond(i32)
define void @test(i32 %B) {
; <label>:0
br label %Loop
Loop: ; preds = %Loop, %0
%IV = phi i32 [ 0, %0 ], [ %IVn, %Loop ] ; <i32> [#uses=3]
%C = mul i32 %IV, 18 ; <i32> [#uses=1]
%D = mul i32 %IV, 18 ; <i32> [#uses=1]
%E = add i32 %D, %B ; <i32> [#uses=1]
%cnd = call i1 @cond( i32 %E ) ; <i1> [#uses=1]
call i1 @cond( i32 %C ) ; <i1>:1 [#uses=0]
%IVn = add i32 %IV, 1 ; <i32> [#uses=1]
br i1 %cnd, label %Loop, label %Out
Out: ; preds = %Loop
ret void
}