53 lines
2.5 KiB
LLVM
53 lines
2.5 KiB
LLVM
; RUN: opt -gvn -S -o - %s | FileCheck %s
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; RUN: opt -newgvn -S -o - %s | FileCheck %s
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; Test that the constantfolding getelementptr computation results in
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; j[5][4][1] (j+239)
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; and not [1][4][4][1] (#449) which is an incorrect out-of-range error
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7-none-eabi"
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@f = local_unnamed_addr global i32 2, align 4
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@t6 = local_unnamed_addr global i32 1, align 4
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@j = local_unnamed_addr global [6 x [6 x [7 x i8]]] [[6 x [7 x i8]] [[7 x i8] c"\06\00\00\00\00\00\00", [7 x i8] zeroinitializer, [7 x i8] zeroinitializer, [7 x i8] zeroinitializer, [7 x i8] zeroinitializer, [7 x i8] zeroinitializer], [6 x [7 x i8]] zeroinitializer, [6 x [7 x i8]] zeroinitializer, [6 x [7 x i8]] zeroinitializer, [6 x [7 x i8]] zeroinitializer, [6 x [7 x i8]] zeroinitializer], align 1
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@p = internal global i64 0, align 8
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@y = local_unnamed_addr global i64* @p, align 4
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@b = internal unnamed_addr global i32 0, align 4
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@h = common local_unnamed_addr global i16 0, align 2
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@a = common local_unnamed_addr global i32 0, align 4
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@k = common local_unnamed_addr global i32 0, align 4
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@t11 = common local_unnamed_addr global i32 0, align 4
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; Function Attrs: nounwind
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define i32 @main() local_unnamed_addr {
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entry:
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%0 = load i32, i32* @t6, align 4
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%inc = add nsw i32 %0, 1
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store i32 %inc, i32* @t6, align 4
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store i16 4, i16* @h, align 2
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%1 = load i32, i32* @a, align 4
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%conv = trunc i32 %1 to i8
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store i32 1, i32* @f, align 4
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%2 = load i64, i64* @p, align 8
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%cmp4 = icmp slt i64 %2, 2
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%conv6 = zext i1 %cmp4 to i8
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%3 = load i16, i16* @h, align 2
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%conv7 = sext i16 %3 to i32
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%add = add nsw i32 %conv7, 1
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%f.promoted = load i32, i32* @f, align 4
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%4 = mul i32 %conv7, 7
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%5 = add i32 %4, 5
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%6 = sub i32 -1, %f.promoted
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%7 = icmp sgt i32 %6, -2
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%smax = select i1 %7, i32 %6, i32 -2
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%8 = sub i32 6, %smax
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%scevgep = getelementptr [6 x [6 x [7 x i8]]], [6 x [6 x [7 x i8]]]* @j, i32 0, i32 0, i32 %5, i32 %8
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%9 = add i32 %f.promoted, %smax
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%10 = add i32 %9, 2
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call void @llvm.memset.p0i8.i32(i8* %scevgep, i8 %conv6, i32 %10, i32 1, i1 false)
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; CHECK: call void @llvm.memset.p0i8.i32(i8* getelementptr inbounds ([6 x [6 x [7 x i8]]], [6 x [6 x [7 x i8]]]* @j, i32 0, i64 5, i64 4, i32 1), i8 %conv6, i32 1, i32 1, i1 false)
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; CHECK-NOT: call void @llvm.memset.p0i8.i32(i8* getelementptr ([6 x [6 x [7 x i8]]], [6 x [6 x [7 x i8]]]* @j, i64 1, i64 4, i64 4, i32 1)
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ret i32 0
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i32, i1)
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