44 lines
1.6 KiB
LLVM
44 lines
1.6 KiB
LLVM
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; RUN: opt -mtriple=thumbv8.1m.main-arm-eabihf -mattr=+mve.fp -loop-vectorize -tail-predication=enabled -S < %s | \
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; RUN: FileCheck %s -check-prefixes=COMMON,CHECK
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; RUN: opt -mtriple=thumbv8.1m.main-arm-eabihf -mattr=+mve.fp -loop-vectorize -tail-predication=enabled-no-reductions -S < %s | \
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; RUN: FileCheck %s -check-prefixes=COMMON,NORED
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; RUN: opt -mtriple=thumbv8.1m.main-arm-eabihf -mattr=+mve.fp -loop-vectorize -tail-predication=force-enabled-no-reductions -S < %s | \
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; RUN: FileCheck %s -check-prefixes=COMMON,NORED
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; Check that this reduction is allowed, except when reductions are disable on
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; the command line.
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;
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define dso_local i32 @i32_add_reduction(i32* noalias nocapture readonly %B, i32 %N) local_unnamed_addr #0 {
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; COMMON-LABEL: i32_add_reduction(
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; COMMON: entry:
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; CHECK: @llvm.get.active.lane.mask
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; NORED-NOT: @llvm.get.active.lane.mask
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; COMMON: }
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entry:
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%cmp6 = icmp sgt i32 %N, 0
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br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup
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for.body.preheader:
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br label %for.body
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for.cond.cleanup.loopexit:
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%add.lcssa = phi i32 [ %add, %for.body ]
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br label %for.cond.cleanup
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for.cond.cleanup:
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%S.0.lcssa = phi i32 [ 1, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
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ret i32 %S.0.lcssa
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for.body:
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%i.08 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%S.07 = phi i32 [ %add, %for.body ], [ 1, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %B, i32 %i.08
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%0 = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %0, %S.07
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%inc = add nuw nsw i32 %i.08, 1
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%exitcond = icmp eq i32 %inc, %N
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body
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}
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