| ; RUN: opt -passes=gvn -S -o - %s | FileCheck %s |
| ; RUN: opt -passes=newgvn -S -o - %s | FileCheck %s |
| ; Test that the constantfolding getelementptr computation results in |
| ; j[5][4][1] (j+239) |
| ; and not [1][4][4][1] (#449) which is an incorrect out-of-range error |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "armv7-none-eabi" |
| |
| @f = local_unnamed_addr global i32 2, align 4 |
| @t6 = local_unnamed_addr global i32 1, align 4 |
| @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 |
| @p = internal global i64 0, align 8 |
| @y = local_unnamed_addr global ptr @p, align 4 |
| @b = internal unnamed_addr global i32 0, align 4 |
| @h = common local_unnamed_addr global i16 0, align 2 |
| @a = common local_unnamed_addr global i32 0, align 4 |
| @k = common local_unnamed_addr global i32 0, align 4 |
| @t11 = common local_unnamed_addr global i32 0, align 4 |
| |
| ; Function Attrs: nounwind |
| define i32 @main() local_unnamed_addr { |
| entry: |
| %0 = load i32, ptr @t6, align 4 |
| %inc = add nsw i32 %0, 1 |
| store i32 %inc, ptr @t6, align 4 |
| store i16 4, ptr @h, align 2 |
| %1 = load i32, ptr @a, align 4 |
| %conv = trunc i32 %1 to i8 |
| store i32 1, ptr @f, align 4 |
| %2 = load i64, ptr @p, align 8 |
| %cmp4 = icmp slt i64 %2, 2 |
| %conv6 = zext i1 %cmp4 to i8 |
| %3 = load i16, ptr @h, align 2 |
| %conv7 = sext i16 %3 to i32 |
| %add = add nsw i32 %conv7, 1 |
| %f.promoted = load i32, ptr @f, align 4 |
| %4 = mul i32 %conv7, 7 |
| %5 = add i32 %4, 5 |
| %6 = sub i32 -1, %f.promoted |
| %7 = icmp sgt i32 %6, -2 |
| %smax = select i1 %7, i32 %6, i32 -2 |
| %8 = sub i32 6, %smax |
| %scevgep = getelementptr [6 x [6 x [7 x i8]]], ptr @j, i32 0, i32 0, i32 %5, i32 %8 |
| %9 = add i32 %f.promoted, %smax |
| %10 = add i32 %9, 2 |
| call void @llvm.memset.p0.i32(ptr %scevgep, i8 %conv6, i32 %10, i1 false) |
| ; CHECK: call void @llvm.memset.p0.i32(ptr getelementptr inbounds nuw (i8, ptr @j, i32 239), i8 %conv6, i32 1, i1 false) |
| ret i32 0 |
| } |
| ; Function Attrs: argmemonly nounwind |
| declare void @llvm.memset.p0.i32(ptr nocapture writeonly, i8, i32, i1) |