; NOTE: This is a timeout test for some O(something silly) constant folding behaviour. It may not be the best test. Providing it finishes, it passes. | |
; RUN: opt < %s -O3 -S | FileCheck %s | |
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" | |
target triple = "armv8-none-eabi" | |
%struct.ST = type { %struct.ST* } | |
@global = internal global [121 x i8] zeroinitializer, align 1 | |
define void @func() #0 { | |
;CHECK-LABEL: func | |
entry: | |
%s = alloca %struct.ST*, align 4 | |
%j = alloca i32, align 4 | |
store %struct.ST* bitcast ([121 x i8]* @global to %struct.ST*), %struct.ST** %s, align 4 | |
store i32 0, i32* %j, align 4 | |
br label %for.cond | |
for.cond: ; preds = %for.inc, %entry | |
%0 = load i32, i32* %j, align 4 | |
%cmp = icmp slt i32 %0, 30 | |
br i1 %cmp, label %for.body, label %for.end | |
for.body: ; preds = %for.cond | |
%1 = load %struct.ST*, %struct.ST** %s, align 4 | |
%2 = bitcast %struct.ST* %1 to i8* | |
%add.ptr = getelementptr inbounds i8, i8* %2, i32 4 | |
%3 = ptrtoint i8* %add.ptr to i32 | |
%4 = load %struct.ST*, %struct.ST** %s, align 4 | |
%5 = bitcast %struct.ST* %4 to i8* | |
%add.ptr1 = getelementptr inbounds i8, i8* %5, i32 4 | |
%6 = ptrtoint i8* %add.ptr1 to i32 | |
%rem = urem i32 %6, 2 | |
%cmp2 = icmp eq i32 %rem, 0 | |
br i1 %cmp2, label %cond.true, label %cond.false | |
cond.true: ; preds = %for.body | |
br label %cond.end | |
cond.false: ; preds = %for.body | |
%7 = load %struct.ST*, %struct.ST** %s, align 4 | |
%8 = bitcast %struct.ST* %7 to i8* | |
%add.ptr3 = getelementptr inbounds i8, i8* %8, i32 4 | |
%9 = ptrtoint i8* %add.ptr3 to i32 | |
%rem4 = urem i32 %9, 2 | |
br label %cond.end | |
cond.end: ; preds = %cond.false, %cond.true | |
%cond = phi i32 [ 0, %cond.true ], [ %rem4, %cond.false ] | |
%add = add i32 %3, %cond | |
%10 = inttoptr i32 %add to %struct.ST* | |
%11 = load %struct.ST*, %struct.ST** %s, align 4 | |
%next = getelementptr inbounds %struct.ST, %struct.ST* %11, i32 0, i32 0 | |
store %struct.ST* %10, %struct.ST** %next, align 4 | |
%12 = load %struct.ST*, %struct.ST** %s, align 4 | |
%next5 = getelementptr inbounds %struct.ST, %struct.ST* %12, i32 0, i32 0 | |
%13 = load %struct.ST*, %struct.ST** %next5, align 4 | |
store %struct.ST* %13, %struct.ST** %s, align 4 | |
br label %for.inc | |
for.inc: ; preds = %cond.end | |
%14 = load i32, i32* %j, align 4 | |
%inc = add nsw i32 %14, 1 | |
store i32 %inc, i32* %j, align 4 | |
br label %for.cond | |
for.end: ; preds = %for.cond | |
%15 = load %struct.ST*, %struct.ST** %s, align 4 | |
%next6 = getelementptr inbounds %struct.ST, %struct.ST* %15, i32 0, i32 0 | |
store %struct.ST* null, %struct.ST** %next6, align 4 | |
ret void | |
} | |