expander-crashes.ll
4.24 KB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -loop-reduce %s -S | FileCheck %s
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.15.0"
; Tests for crashes during SCEV expansion.
%struct.hoge = type { i32, i32, i32, i32 }
define i64 @blam(%struct.hoge* %start, %struct.hoge* %end, %struct.hoge* %ptr.2) {
; CHECK-LABEL: @blam(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[END16:%.*]] = bitcast %struct.hoge* [[END:%.*]] to i8*
; CHECK-NEXT: [[START17:%.*]] = ptrtoint %struct.hoge* [[START:%.*]] to i64
; CHECK-NEXT: [[SCEVGEP12:%.*]] = getelementptr [[STRUCT_HOGE:%.*]], %struct.hoge* [[START]], i64 0, i32 3
; CHECK-NEXT: [[SCEVGEP1213:%.*]] = bitcast i32* [[SCEVGEP12]] to %struct.hoge*
; CHECK-NEXT: [[TMP0:%.*]] = sub i64 0, [[START17]]
; CHECK-NEXT: [[UGLYGEP18:%.*]] = getelementptr i8, i8* [[END16]], i64 [[TMP0]]
; CHECK-NEXT: [[UGLYGEP1819:%.*]] = bitcast i8* [[UGLYGEP18]] to %struct.hoge*
; CHECK-NEXT: br label [[LOOP_1_HEADER:%.*]]
; CHECK: loop.1.header:
; CHECK-NEXT: [[LSR_IV20:%.*]] = phi %struct.hoge* [ [[SCEVGEP21:%.*]], [[LOOP_1_HEADER]] ], [ [[UGLYGEP1819]], [[ENTRY:%.*]] ]
; CHECK-NEXT: [[LSR_IV14:%.*]] = phi %struct.hoge* [ [[SCEVGEP15:%.*]], [[LOOP_1_HEADER]] ], [ [[SCEVGEP1213]], [[ENTRY]] ]
; CHECK-NEXT: [[SCEVGEP15]] = getelementptr [[STRUCT_HOGE]], %struct.hoge* [[LSR_IV14]], i64 1
; CHECK-NEXT: [[SCEVGEP21]] = getelementptr [[STRUCT_HOGE]], %struct.hoge* [[LSR_IV20]], i64 -1
; CHECK-NEXT: [[EC:%.*]] = icmp eq %struct.hoge* [[SCEVGEP21]], null
; CHECK-NEXT: br i1 [[EC]], label [[LOOP_2_PH:%.*]], label [[LOOP_1_HEADER]]
; CHECK: loop.2.ph:
; CHECK-NEXT: br label [[LOOP_2_HEADER:%.*]]
; CHECK: loop.2.header:
; CHECK-NEXT: [[LSR_IV3:%.*]] = phi %struct.hoge* [ [[SCEVGEP4:%.*]], [[LOOP_2_LATCH:%.*]] ], [ [[SCEVGEP15]], [[LOOP_2_PH]] ]
; CHECK-NEXT: [[LSR_IV310:%.*]] = bitcast %struct.hoge* [[LSR_IV3]] to i32*
; CHECK-NEXT: [[LSR_IV37:%.*]] = bitcast %struct.hoge* [[LSR_IV3]] to i8*
; CHECK-NEXT: [[UGLYGEP8:%.*]] = getelementptr i8, i8* [[LSR_IV37]], i64 -12
; CHECK-NEXT: [[UGLYGEP89:%.*]] = bitcast i8* [[UGLYGEP8]] to %struct.hoge*
; CHECK-NEXT: [[LSR_IV35:%.*]] = bitcast %struct.hoge* [[LSR_IV3]] to i8*
; CHECK-NEXT: [[TMP8:%.*]] = ptrtoint i32* [[LSR_IV310]] to i64
; CHECK-NEXT: call void @use.i64(i64 [[TMP8]])
; CHECK-NEXT: [[SCEVGEP11:%.*]] = getelementptr i32, i32* [[LSR_IV310]], i64 -1
; CHECK-NEXT: store i32 10, i32* [[SCEVGEP11]], align 8
; CHECK-NEXT: [[EC_2:%.*]] = icmp ugt %struct.hoge* [[UGLYGEP89]], [[PTR_2:%.*]]
; CHECK-NEXT: br i1 [[EC_2]], label [[LOOP_2_EXIT:%.*]], label [[LOOP_2_LATCH]]
; CHECK: loop.2.latch:
; CHECK-NEXT: [[SCEVGEP4]] = getelementptr [[STRUCT_HOGE]], %struct.hoge* [[LSR_IV3]], i64 1
; CHECK-NEXT: br label [[LOOP_2_HEADER]]
; CHECK: loop.2.exit:
; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[LSR_IV35]], i64 -12
; CHECK-NEXT: [[UGLYGEP6:%.*]] = bitcast i8* [[UGLYGEP]] to %struct.hoge*
; CHECK-NEXT: [[IV2_CAST:%.*]] = ptrtoint %struct.hoge* [[UGLYGEP6]] to i64
; CHECK-NEXT: ret i64 [[IV2_CAST]]
;
entry:
br label %loop.1.header
loop.1.header:
%iv = phi %struct.hoge* [ %iv.next, %loop.1.header ], [ %start, %entry ]
%iv.next = getelementptr inbounds %struct.hoge, %struct.hoge* %iv, i64 1
%ec = icmp eq %struct.hoge* %iv.next, %end
br i1 %ec, label %loop.2.ph, label %loop.1.header
loop.2.ph:
br label %loop.2.header
loop.2.header:
%iv2 = phi %struct.hoge* [ %iv2.next, %loop.2.latch ], [ %iv.next, %loop.2.ph ]
%tmp7 = getelementptr inbounds %struct.hoge, %struct.hoge* %iv2, i64 0, i32 3
%tmp8 = ptrtoint i32* %tmp7 to i64
call void @use.i64(i64 %tmp8)
%tmp9 = getelementptr inbounds %struct.hoge, %struct.hoge* %iv2, i64 0, i32 2
store i32 10, i32* %tmp9, align 8
%ec.2 = icmp ugt %struct.hoge* %iv2, %ptr.2
br i1 %ec.2, label %loop.2.exit, label %loop.2.latch
loop.2.latch:
%iv2.next = getelementptr inbounds %struct.hoge, %struct.hoge* %iv2, i64 1
br label %loop.2.header
loop.2.exit: ; preds = %bb6
%iv2.cast = ptrtoint %struct.hoge* %iv2 to i64
ret i64 %iv2.cast
}
declare void @use.i64(i64)