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authorEric Christopher <echristo@gmail.com>2019-04-17 04:52:47 +0000
committerEric Christopher <echristo@gmail.com>2019-04-17 04:52:47 +0000
commitcee313d288a4faf0355d76fb6e0e927e211d08a5 (patch)
treed386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/LoopVectorize/float-reduction.ll
parentc3d6a929fdd92fd06d4304675ade8d7210ee711a (diff)
downloadbcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz
bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/float-reduction.ll')
-rw-r--r--llvm/test/Transforms/LoopVectorize/float-reduction.ll46
1 files changed, 46 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/float-reduction.ll b/llvm/test/Transforms/LoopVectorize/float-reduction.ll
new file mode 100644
index 00000000000..f3b95d0ead7
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/float-reduction.ll
@@ -0,0 +1,46 @@
+; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
+
+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"
+;CHECK-LABEL: @foo(
+;CHECK: fadd fast <4 x float>
+;CHECK: ret
+define float @foo(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
+ %sum.04 = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ]
+ %arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
+ %0 = load float, float* %arrayidx, align 4
+ %add = fadd fast float %sum.04, %0
+ %indvars.iv.next = add i64 %indvars.iv, 1
+ %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+ %exitcond = icmp eq i32 %lftr.wideiv, 200
+ br i1 %exitcond, label %for.end, label %for.body
+
+for.end: ; preds = %for.body
+ ret float %add
+}
+
+;CHECK-LABEL: @foosub(
+;CHECK: fsub fast <4 x float>
+;CHECK: ret
+define float @foosub(float* nocapture %A, i32* nocapture %n) nounwind uwtable readonly ssp {
+entry:
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
+ %sum.04 = phi float [ 0.000000e+00, %entry ], [ %sub, %for.body ]
+ %arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
+ %0 = load float, float* %arrayidx, align 4
+ %sub = fsub fast float %sum.04, %0
+ %indvars.iv.next = add i64 %indvars.iv, 1
+ %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+ %exitcond = icmp eq i32 %lftr.wideiv, 200
+ br i1 %exitcond, label %for.end, label %for.body
+
+for.end: ; preds = %for.body
+ ret float %sub
+}
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