invalidate_right_loop.ll
1.89 KB
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; RUN: opt < %s -S -indvars -loop-unroll -verify-dom-info | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1"
target triple = "x86_64-unknown-linux-gnu"
; Make sure that this test doesn't crash because of dangling pointer in SCEV.
declare void @llvm.experimental.guard(i1, ...)
define void @test(i32* %p, i8** %p2, i64* %dest) {
; CHECK-LABEL: @test(
entry:
br label %outer.loop
outer.loop: ; preds = %outer.latch, %entry
%local_2_ = phi i32 [ 10, %entry ], [ %tmp2, %outer.latch ]
%tmp1 = icmp eq i32 %local_2_, 0
br label %inner.loop
outer.latch: ; preds = %inner.latch
%tmp2 = add i32 %local_2_, 1
br label %outer.loop
inner.loop: ; preds = %inner.latch, %outer.loop
%local_4_20 = phi i32 [ 7, %outer.loop ], [ %tmp15, %inner.latch ]
%tmp6 = icmp eq i32 %local_4_20, 0
call void (i1, ...) @llvm.experimental.guard(i1 %tmp6) [ "deopt"() ]
br label %innermost.loop
store.block: ; preds = %innermost.loop
store i64 %tmp20, i64* %dest, align 8
br i1 %tmp1, label %exit, label %inner.latch
inner.latch: ; preds = %store.block
%tmp15 = add i32 %local_4_20, 4
%tmp16 = icmp sgt i32 %tmp15, 263
br i1 %tmp16, label %outer.latch, label %inner.loop
innermost.loop: ; preds = %innermost.loop, %inner.loop
%tmp17 = phi i64 [ 0, %inner.loop ], [ %tmp20, %innermost.loop ]
%local_6_51 = phi i32 [ 1, %inner.loop ], [ %tmp21, %innermost.loop ]
%ze = zext i32 %local_6_51 to i64
%tmp20 = add i64 %tmp17, %ze
%tmp21 = add nuw nsw i32 %local_6_51, 1
%tmp22 = icmp ugt i32 %local_6_51, 5
br i1 %tmp22, label %store.block, label %innermost.loop
exit: ; preds = %store.block
ret void
}