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1; RUN: opt -passes='sroa,loop(loop-rotate)' %s | opt -aa-pipeline=basic-aa -passes='require<aa>,require<target-ir>,require<scalar-evolution>,require<opt-remark-emit>,loop-mssa(licm)' -S | FileCheck %s2; RUN: opt -passes='sroa,loop(loop-rotate),loop-mssa(licm)' -verify-memoryssa -S < %s | FileCheck %s3; The objects *p and *q are aliased to each other, but even though *q is4; volatile, *p can be considered invariant in the loop. Check if it is moved5; out of the loop.6; CHECK: load i32, ptr %p7; CHECK: for.body:8; CHECK: load volatile i32, ptr %q9 10target 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"11 12; Function Attrs: nounwind uwtable13define i32 @foo(ptr dereferenceable(4) nonnull %p, ptr %q, i32 %n) {14entry:15 %p.addr = alloca ptr, align 816 %q.addr = alloca ptr, align 817 %n.addr = alloca i32, align 418 %i = alloca i32, align 419 %s = alloca i32, align 420 store ptr %p, ptr %p.addr, align 821 store ptr %q, ptr %q.addr, align 822 store i32 %n, ptr %n.addr, align 423 store i32 0, ptr %s, align 424 store i32 0, ptr %i, align 425 br label %for.cond26 27for.cond: ; preds = %for.inc, %entry28 %0 = load i32, ptr %i, align 429 %1 = load i32, ptr %n.addr, align 430 %cmp = icmp slt i32 %0, %131 br i1 %cmp, label %for.body, label %for.end32 33for.body: ; preds = %for.cond34 %2 = load ptr, ptr %p.addr, align 835 %3 = load i32, ptr %2, align 436 %4 = load ptr, ptr %q.addr, align 837 %5 = load volatile i32, ptr %4, align 438 %add = add nsw i32 %3, %539 %6 = load i32, ptr %s, align 440 %add1 = add nsw i32 %6, %add41 store i32 %add1, ptr %s, align 442 br label %for.inc43 44for.inc: ; preds = %for.body45 %7 = load i32, ptr %i, align 446 %inc = add nsw i32 %7, 147 store i32 %inc, ptr %i, align 448 br label %for.cond49 50for.end: ; preds = %for.cond51 %8 = load i32, ptr %s, align 452 ret i32 %853}54