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https://github.com/c64scene-ar/llvm-6502.git
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a5a3a61c5f
Add getCostXXX calls for different families of opcodes, such as casts, arithmetic, cmp, etc. Port the LoopVectorizer to the new API. The LoopVectorizer now finds instructions which will remain uniform after vectorization. It uses this information when calculating the cost of these instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166836 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.6 KiB
LLVM
39 lines
1.6 KiB
LLVM
; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx -S | FileCheck %s
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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"
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target triple = "x86_64-apple-macosx10.8.0"
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@c = common global [2048 x i32] zeroinitializer, align 16
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@b = common global [2048 x i32] zeroinitializer, align 16
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@d = common global [2048 x i32] zeroinitializer, align 16
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@a = common global [2048 x i32] zeroinitializer, align 16
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;CHECK: cost_model_1
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;CHECK-NOT: <4 x i32>
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;CHECK: ret void
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define void @cost_model_1() nounwind uwtable noinline ssp {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%0 = shl nsw i64 %indvars.iv, 1
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%arrayidx = getelementptr inbounds [2048 x i32]* @c, i64 0, i64 %0
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%1 = load i32* %arrayidx, align 8
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%idxprom1 = sext i32 %1 to i64
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%arrayidx2 = getelementptr inbounds [2048 x i32]* @b, i64 0, i64 %idxprom1
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%2 = load i32* %arrayidx2, align 4
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%arrayidx4 = getelementptr inbounds [2048 x i32]* @d, i64 0, i64 %indvars.iv
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%3 = load i32* %arrayidx4, align 4
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%idxprom5 = sext i32 %3 to i64
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%arrayidx6 = getelementptr inbounds [2048 x i32]* @a, i64 0, i64 %idxprom5
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store i32 %2, i32* %arrayidx6, align 4
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%indvars.iv.next = add 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, 256
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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