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https://github.com/c64scene-ar/llvm-6502.git
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40 lines
1.5 KiB
LLVM
40 lines
1.5 KiB
LLVM
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; RUN: opt < %s -mcpu=core-avx2 -loop-vectorize -S | llc -mcpu=core-avx2 | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx"
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@float_array = common global [10000 x float] zeroinitializer, align 16
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@unsigned_array = common global [10000 x i32] zeroinitializer, align 16
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; If we need to scalarize the fptoui and then use inserts to build up the
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; vector again, then there is certainly no value in going 256-bit wide.
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; CHECK-NOT: vinserti128
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define void @convert(i32 %N) {
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entry:
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%0 = icmp eq i32 %N, 0
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br i1 %0, label %for.end, label %for.body.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds [10000 x float]* @float_array, i64 0, i64 %indvars.iv
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%1 = load float* %arrayidx, align 4
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%conv = fptoui float %1 to i32
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%arrayidx2 = getelementptr inbounds [10000 x i32]* @unsigned_array, i64 0, i64 %indvars.iv
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store i32 %conv, i32* %arrayidx2, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, %N
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br i1 %exitcond, label %for.end.loopexit, label %for.body
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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