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45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
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; From a simple program with two address spaces:
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; char Y[4*10000] __attribute__((address_space(1)));
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; char X[4*10000];
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; int main() {
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; for (int i = 0; i < 4*10000; ++i)
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; X[i] = Y[i] + 1;
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; return 0;
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;}
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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-unknown-linux-gnu"
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@Y = common addrspace(1) global [40000 x i8] zeroinitializer, align 16
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@X = common global [40000 x i8] zeroinitializer, align 16
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;CHECK-LABEL: @main(
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;CHECK: bitcast i8 addrspace(1)* %{{.*}} to <4 x i8> addrspace(1)*
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;CHECK: bitcast i8* %{{.*}} to <4 x i8>*
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; Function Attrs: nounwind uwtable
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define i32 @main() #0 {
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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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%arrayidx = getelementptr inbounds [40000 x i8] addrspace(1)* @Y, i64 0, i64 %indvars.iv
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%0 = load i8 addrspace(1)* %arrayidx, align 1
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%add = add i8 %0, 1
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%arrayidx3 = getelementptr inbounds [40000 x i8]* @X, i64 0, i64 %indvars.iv
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store i8 %add, i8* %arrayidx3, align 1
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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, 40000
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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 i32 0
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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