3d18c8cd26
Similar to d39b4ce3ce
Using "eabi" or "gnueabi" for aarch64 targets is a common mistake and
warned by Clang Driver. We want to avoid them elsewhere as well. Just
use the common "aarch64" without other triple components.
167 lines
4.8 KiB
LLVM
167 lines
4.8 KiB
LLVM
; RUN: opt -mtriple=aarch64 -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 < %s -S | FileCheck %s
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; The following tests contain loops for which SCEV cannot determine the backedge
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; taken count. This is because the backedge taken condition is produced by an
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; icmp with one of the sides being a loop varying non-AddRec expression.
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; However, there is a possibility to normalize this to an AddRec expression
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; using SCEV predicates. This allows us to compute a 'guarded' backedge count.
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; The Loop Vectorizer is able to version to loop in order to use this guarded
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; backedge count and vectorize more loops.
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; CHECK-LABEL: test_sge
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; CHECK-LABEL: vector.scevcheck
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; CHECK-LABEL: vector.body
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define void @test_sge(ptr noalias %A,
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ptr noalias %B,
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ptr noalias %C, i32 %N) {
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entry:
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%cmp13 = icmp eq i32 %N, 0
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br i1 %cmp13, label %for.end, label %for.body.preheader
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for.body.preheader:
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br label %for.body
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for.body:
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%indvars.iv = phi i16 [ %indvars.next, %for.body ], [ 0, %for.body.preheader ]
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%indvars.next = add i16 %indvars.iv, 1
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%indvars.ext = zext i16 %indvars.iv to i32
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%arrayidx = getelementptr inbounds i32, ptr %B, i32 %indvars.ext
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%0 = load i32, ptr %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, ptr %C, i32 %indvars.ext
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%1 = load i32, ptr %arrayidx3, align 4
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%mul4 = mul i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, ptr %A, i32 %indvars.ext
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store i32 %mul4, ptr %arrayidx7, align 4
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%exitcond = icmp sge i32 %indvars.ext, %N
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: test_uge
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; CHECK-LABEL: vector.scevcheck
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; CHECK-LABEL: vector.body
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define void @test_uge(ptr noalias %A,
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ptr noalias %B,
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ptr noalias %C, i32 %N, i32 %Offset) {
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entry:
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%cmp13 = icmp eq i32 %N, 0
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br i1 %cmp13, label %for.end, label %for.body.preheader
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for.body.preheader:
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br label %for.body
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for.body:
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%indvars.iv = phi i16 [ %indvars.next, %for.body ], [ 0, %for.body.preheader ]
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%indvars.next = add i16 %indvars.iv, 1
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%indvars.ext = sext i16 %indvars.iv to i32
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%indvars.access = add i32 %Offset, %indvars.ext
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%arrayidx = getelementptr inbounds i32, ptr %B, i32 %indvars.access
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%0 = load i32, ptr %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, ptr %C, i32 %indvars.access
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%1 = load i32, ptr %arrayidx3, align 4
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%mul4 = add i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, ptr %A, i32 %indvars.access
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store i32 %mul4, ptr %arrayidx7, align 4
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%exitcond = icmp uge i32 %indvars.ext, %N
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: test_ule
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; CHECK-LABEL: vector.scevcheck
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; CHECK-LABEL: vector.body
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define void @test_ule(ptr noalias %A,
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ptr noalias %B,
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ptr noalias %C, i32 %N,
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i16 %M) {
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entry:
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%cmp13 = icmp eq i32 %N, 0
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br i1 %cmp13, label %for.end, label %for.body.preheader
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for.body.preheader:
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br label %for.body
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for.body:
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%indvars.iv = phi i16 [ %indvars.next, %for.body ], [ %M, %for.body.preheader ]
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%indvars.next = sub i16 %indvars.iv, 1
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%indvars.ext = zext i16 %indvars.iv to i32
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%arrayidx = getelementptr inbounds i32, ptr %B, i32 %indvars.ext
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%0 = load i32, ptr %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, ptr %C, i32 %indvars.ext
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%1 = load i32, ptr %arrayidx3, align 4
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%mul4 = mul i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, ptr %A, i32 %indvars.ext
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store i32 %mul4, ptr %arrayidx7, align 4
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%exitcond = icmp ule i32 %indvars.ext, %N
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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; CHECK-LABEL: test_sle
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; CHECK-LABEL: vector.scevcheck
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; CHECK-LABEL: vector.body
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define void @test_sle(ptr noalias %A,
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ptr noalias %B,
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ptr noalias %C, i32 %N,
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i16 %M) {
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entry:
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%cmp13 = icmp eq i32 %N, 0
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br i1 %cmp13, label %for.end, label %for.body.preheader
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for.body.preheader:
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br label %for.body
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for.body:
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%indvars.iv = phi i16 [ %indvars.next, %for.body ], [ %M, %for.body.preheader ]
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%indvars.next = sub i16 %indvars.iv, 1
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%indvars.ext = sext i16 %indvars.iv to i32
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%arrayidx = getelementptr inbounds i32, ptr %B, i32 %indvars.ext
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%0 = load i32, ptr %arrayidx, align 4
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%arrayidx3 = getelementptr inbounds i32, ptr %C, i32 %indvars.ext
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%1 = load i32, ptr %arrayidx3, align 4
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%mul4 = mul i32 %1, %0
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%arrayidx7 = getelementptr inbounds i32, ptr %A, i32 %indvars.ext
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store i32 %mul4, ptr %arrayidx7, align 4
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%exitcond = icmp sle i32 %indvars.ext, %N
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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