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https://github.com/c64scene-ar/llvm-6502.git
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462d1ca428
This is important for loops in the LAPACK test-suite. These loops start at 1 because they are auto-converted from fortran. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167084 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
1.4 KiB
LLVM
36 lines
1.4 KiB
LLVM
; RUN: opt < %s -loop-vectorize -force-vector-width=4 -instcombine -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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;CHECK: @start_at_nonzero
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;CHECK: mul <4 x i32>
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;CHECK: ret i32
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define i32 @start_at_nonzero(i32* nocapture %a, i32 %start, i32 %end) nounwind uwtable ssp {
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entry:
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%cmp3 = icmp slt i32 %start, %end
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br i1 %cmp3, label %for.body.lr.ph, label %for.end
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for.body.lr.ph: ; preds = %entry
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%0 = sext i32 %start to i64
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br label %for.body
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for.body: ; preds = %for.body.lr.ph, %for.body
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%indvars.iv = phi i64 [ %0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
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%1 = load i32* %arrayidx, align 4, !tbaa !0
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%mul = mul nsw i32 %1, 333
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store i32 %mul, i32* %arrayidx, align 4, !tbaa !0
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%indvars.iv.next = add i64 %indvars.iv, 1
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%2 = trunc i64 %indvars.iv.next to i32
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%cmp = icmp slt i32 %2, %end
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.body, %entry
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ret i32 4
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}
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!0 = metadata !{metadata !"int", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA"}
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