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https://github.com/c64scene-ar/llvm-6502.git
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6f3d81a929
the cost of arithmetic functions. We now assume that the cost of arithmetic operations that are marked as Legal or Promote is low, but ops that are marked as custom are higher. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171002 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
2.3 KiB
LLVM
63 lines
2.3 KiB
LLVM
; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -dce -instcombine -licm -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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@b = common global [2048 x i32] zeroinitializer, align 16
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@c = 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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; Select VF = 8;
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;CHECK: @example1
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;CHECK: load <4 x i32>
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;CHECK: add nsw <4 x i32>
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;CHECK: store <4 x i32>
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;CHECK: ret void
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define void @example1() nounwind uwtable ssp {
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br label %1
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; <label>:1 ; preds = %1, %0
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%indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
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%2 = getelementptr inbounds [2048 x i32]* @b, i64 0, i64 %indvars.iv
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%3 = load i32* %2, align 4
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%4 = getelementptr inbounds [2048 x i32]* @c, i64 0, i64 %indvars.iv
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%5 = load i32* %4, align 4
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%6 = add nsw i32 %5, %3
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%7 = getelementptr inbounds [2048 x i32]* @a, i64 0, i64 %indvars.iv
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store i32 %6, i32* %7, 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 %8, label %1
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; <label>:8 ; preds = %1
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ret void
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}
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; Select VF=4 because sext <8 x i1> to <8 x i32> is expensive.
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;CHECK: @example10b
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;CHECK: load <4 x i16>
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;CHECK: sext <4 x i16>
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;CHECK: store <4 x i32>
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;CHECK: ret void
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define void @example10b(i16* noalias nocapture %sa, i16* noalias nocapture %sb, i16* noalias nocapture %sc, i32* noalias nocapture %ia, i32* noalias nocapture %ib, i32* noalias nocapture %ic) nounwind uwtable ssp {
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br label %1
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; <label>:1 ; preds = %1, %0
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%indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
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%2 = getelementptr inbounds i16* %sb, i64 %indvars.iv
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%3 = load i16* %2, align 2
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%4 = sext i16 %3 to i32
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%5 = getelementptr inbounds i32* %ia, i64 %indvars.iv
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store i32 %4, i32* %5, 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, 1024
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br i1 %exitcond, label %6, label %1
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; <label>:6 ; preds = %1
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ret void
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}
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