76 lines
3.1 KiB
LLVM
76 lines
3.1 KiB
LLVM
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | 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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define i32 @foo(i32* noalias nocapture %A, i32* noalias nocapture %B, i32 %start, i32 %end) nounwind uwtable ssp {
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entry:
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;CHECK: cost of 1 {{.*}} icmp
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%cmp7 = icmp slt i32 %start, %end
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br i1 %cmp7, label %for.body.lr.ph, label %for.end
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for.body.lr.ph: ; preds = %entry
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;CHECK: cost of 1 {{.*}} sext
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%0 = sext i32 %start to i64
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%1 = sub i32 %end, %start
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%2 = zext i32 %1 to i64
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%end.idx = add i64 %2, %0
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;CHECK: cost of 1 {{.*}} add
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%n.vec = and i64 %2, 4294967288
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%end.idx.rnd.down = add i64 %n.vec, %0
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;CHECK: cost of 1 {{.*}} icmp
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%cmp.zero = icmp eq i64 %n.vec, 0
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br i1 %cmp.zero, label %middle.block, label %vector.body
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vector.body: ; preds = %for.body.lr.ph, %vector.body
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%index = phi i64 [ %index.next, %vector.body ], [ %0, %for.body.lr.ph ]
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%3 = add i64 %index, 2
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%4 = getelementptr inbounds i32, i32* %B, i64 %3
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;CHECK: cost of 0 {{.*}} bitcast
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%5 = bitcast i32* %4 to <8 x i32>*
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;CHECK: cost of 2 {{.*}} load
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%6 = load <8 x i32>, <8 x i32>* %5, align 4
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;CHECK: cost of 4 {{.*}} mul
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%7 = mul nsw <8 x i32> %6, <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
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%8 = getelementptr inbounds i32, i32* %A, i64 %index
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%9 = bitcast i32* %8 to <8 x i32>*
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;CHECK: cost of 2 {{.*}} load
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%10 = load <8 x i32>, <8 x i32>* %9, align 4
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;CHECK: cost of 4 {{.*}} add
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%11 = add nsw <8 x i32> %10, %7
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;CHECK: cost of 2 {{.*}} store
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store <8 x i32> %11, <8 x i32>* %9, align 4
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%index.next = add i64 %index, 8
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%12 = icmp eq i64 %index.next, %end.idx.rnd.down
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;CHECK: cost of 0 {{.*}} br
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br i1 %12, label %middle.block, label %vector.body
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middle.block: ; preds = %vector.body, %for.body.lr.ph
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%cmp.n = icmp eq i64 %end.idx, %end.idx.rnd.down
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br i1 %cmp.n, label %for.end, label %for.body
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for.body: ; preds = %middle.block, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %end.idx.rnd.down, %middle.block ]
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%13 = add nsw i64 %indvars.iv, 2
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%arrayidx = getelementptr inbounds i32, i32* %B, i64 %13
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;CHECK: cost of 1 {{.*}} load
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%14 = load i32, i32* %arrayidx, align 4
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;CHECK: cost of 1 {{.*}} mul
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%mul = mul nsw i32 %14, 5
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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;CHECK: cost of 1 {{.*}} load
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%15 = load i32, i32* %arrayidx2, align 4
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%add3 = add nsw i32 %15, %mul
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store i32 %add3, i32* %arrayidx2, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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;CHECK: cost of 0 {{.*}} trunc
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%16 = trunc i64 %indvars.iv.next to i32
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%cmp = icmp slt i32 %16, %end
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;CHECK: cost of 0 {{.*}} br
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %middle.block, %for.body, %entry
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;CHECK: cost of 0 {{.*}} ret
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ret i32 undef
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}
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