74 lines
2.9 KiB
LLVM
74 lines
2.9 KiB
LLVM
|
; 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
|
||
|
|
}
|
||
|
|
|