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| author | Max Kazantsev <max.kazantsev@azul.com> | 2017-10-27 04:17:44 +0000 |
|---|---|---|
| committer | Max Kazantsev <max.kazantsev@azul.com> | 2017-10-27 04:17:44 +0000 |
| commit | 52d0a49046f0393b315b5743c5f341ebc6b1da06 (patch) | |
| tree | 31f44177428b65ddf3be30c733367f8f1d62ee55 /llvm/test/Transforms/IndVarSimplify/udiv.ll | |
| parent | f9c66e4b80038d4c079515f7ea884d6d9a3d848a (diff) | |
| download | bcm5719-llvm-52d0a49046f0393b315b5743c5f341ebc6b1da06.tar.gz bcm5719-llvm-52d0a49046f0393b315b5743c5f341ebc6b1da06.zip | |
Revert rL316568 because of sudden performance drop on ARM
llvm-svn: 316739
Diffstat (limited to 'llvm/test/Transforms/IndVarSimplify/udiv.ll')
| -rw-r--r-- | llvm/test/Transforms/IndVarSimplify/udiv.ll | 40 |
1 files changed, 2 insertions, 38 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/udiv.ll b/llvm/test/Transforms/IndVarSimplify/udiv.ll index 0f9a54e8c4f..b3f2c2a6a66 100644 --- a/llvm/test/Transforms/IndVarSimplify/udiv.ll +++ b/llvm/test/Transforms/IndVarSimplify/udiv.ll @@ -130,11 +130,11 @@ declare i32 @printf(i8* nocapture, ...) nounwind ; IndVars doesn't emit a udiv in for.body.preheader since SCEVExpander::expand will ; find out there's already a udiv in the original code. -; CHECK-LABEL: @foo_01( +; CHECK-LABEL: @foo( ; CHECK: for.body.preheader: ; CHECK-NOT: udiv -define void @foo_01(double* %p, i64 %n) nounwind { +define void @foo(double* %p, i64 %n) nounwind { entry: %div0 = udiv i64 %n, 7 ; <i64> [#uses=1] %div1 = add i64 %div0, 1 @@ -160,39 +160,3 @@ for.end.loopexit: ; preds = %for.body for.end: ; preds = %for.end.loopexit, %entry ret void } - -; Same as foo_01, but we divide by non-constant value. - -; CHECK-LABEL: @foo_02( -; CHECK: for.body.preheader: -; CHECK-NOT: udiv - -define void @foo_02(double* %p, i64 %n, i64* %lp) nounwind { -entry: - %denom = load i64, i64* %lp, align 4, !range !0 - %div0 = udiv i64 %n, %denom ; <i64> [#uses=1] - %div1 = add i64 %div0, 1 - %cmp2 = icmp ult i64 0, %div1 ; <i1> [#uses=1] - br i1 %cmp2, label %for.body.preheader, label %for.end - -for.body.preheader: ; preds = %entry - br label %for.body - -for.body: ; preds = %for.body.preheader, %for.body - %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ] ; <i64> [#uses=2] - %arrayidx = getelementptr inbounds double, double* %p, i64 %i.03 ; <double*> [#uses=1] - store double 0.000000e+00, double* %arrayidx - %inc = add i64 %i.03, 1 ; <i64> [#uses=2] - %divx = udiv i64 %n, %denom ; <i64> [#uses=1] - %div = add i64 %divx, 1 - %cmp = icmp ult i64 %inc, %div ; <i1> [#uses=1] - br i1 %cmp, label %for.body, label %for.end.loopexit - -for.end.loopexit: ; preds = %for.body - br label %for.end - -for.end: ; preds = %for.end.loopexit, %entry - ret void -} - -!0 = !{i64 1, i64 10} |

