b4916918e5
If we've got an SCEVPtrToIntExpr(op), where op is not an SCEVUnknown, we want to sink the SCEVPtrToIntExpr into an operand, so that the operation is performed on integers, and eventually we end up with just an `SCEVPtrToIntExpr(SCEVUnknown)`. Reviewed By: mkazantsev Differential Revision: https://reviews.llvm.org/D89692
84 lines
3.9 KiB
LLVM
84 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -loop-reduce %s -S | FileCheck %s
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.15.0"
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; Tests for crashes during SCEV expansion.
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%struct.hoge = type { i32, i32, i32, i32 }
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define i64 @blam(%struct.hoge* %start, %struct.hoge* %end, %struct.hoge* %ptr.2) {
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; CHECK-LABEL: @blam(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[START9:%.*]] = ptrtoint %struct.hoge* [[START:%.*]] to i64
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; CHECK-NEXT: [[START6:%.*]] = bitcast %struct.hoge* [[START]] to i8*
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; CHECK-NEXT: [[END8:%.*]] = bitcast %struct.hoge* [[END:%.*]] to i8*
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; CHECK-NEXT: [[TMP0:%.*]] = ptrtoint %struct.hoge* [[START]] to i64
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; CHECK-NEXT: [[TMP1:%.*]] = sub i64 0, [[START9]]
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; CHECK-NEXT: [[UGLYGEP10:%.*]] = getelementptr i8, i8* [[END8]], i64 [[TMP1]]
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; CHECK-NEXT: br label [[LOOP_1_HEADER:%.*]]
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; CHECK: loop.1.header:
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; CHECK-NEXT: [[LSR_IV4:%.*]] = phi i64 [ [[LSR_IV_NEXT5:%.*]], [[LOOP_1_HEADER]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[LSR_IV_NEXT5]] = add i64 [[LSR_IV4]], -16
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; CHECK-NEXT: [[SCEVGEP11:%.*]] = getelementptr i8, i8* [[UGLYGEP10]], i64 [[LSR_IV_NEXT5]]
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; CHECK-NEXT: [[SCEVGEP1112:%.*]] = bitcast i8* [[SCEVGEP11]] to %struct.hoge*
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; CHECK-NEXT: [[EC:%.*]] = icmp eq %struct.hoge* [[SCEVGEP1112]], null
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; CHECK-NEXT: br i1 [[EC]], label [[LOOP_2_PH:%.*]], label [[LOOP_1_HEADER]]
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; CHECK: loop.2.ph:
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[TMP0]], [[LSR_IV_NEXT5]]
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; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[LSR_IV_NEXT5]], -1
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; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[START6]], i64 [[TMP3]]
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; CHECK-NEXT: [[UGLYGEP7:%.*]] = bitcast i8* [[UGLYGEP]] to %struct.hoge*
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; CHECK-NEXT: br label [[LOOP_2_HEADER:%.*]]
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; CHECK: loop.2.header:
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; CHECK-NEXT: [[LSR_IV1:%.*]] = phi i64 [ [[LSR_IV_NEXT2:%.*]], [[LOOP_2_LATCH:%.*]] ], [ [[TMP2]], [[LOOP_2_PH]] ]
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; CHECK-NEXT: [[IV2:%.*]] = phi %struct.hoge* [ [[IV2_NEXT:%.*]], [[LOOP_2_LATCH]] ], [ [[UGLYGEP7]], [[LOOP_2_PH]] ]
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; CHECK-NEXT: [[IV23:%.*]] = bitcast %struct.hoge* [[IV2]] to i32*
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; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[LSR_IV1]], 12
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; CHECK-NEXT: call void @use.i64(i64 [[TMP4]])
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; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i32, i32* [[IV23]], i64 2
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; CHECK-NEXT: store i32 10, i32* [[SCEVGEP]], align 8
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; CHECK-NEXT: [[EC_2:%.*]] = icmp ugt %struct.hoge* [[IV2]], [[PTR_2:%.*]]
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; CHECK-NEXT: br i1 [[EC_2]], label [[LOOP_2_EXIT:%.*]], label [[LOOP_2_LATCH]]
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; CHECK: loop.2.latch:
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; CHECK-NEXT: [[IV2_NEXT]] = getelementptr inbounds [[STRUCT_HOGE:%.*]], %struct.hoge* [[IV2]], i64 1
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; CHECK-NEXT: [[LSR_IV_NEXT2]] = add i64 [[LSR_IV1]], 16
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; CHECK-NEXT: br label [[LOOP_2_HEADER]]
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; CHECK: loop.2.exit:
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; CHECK-NEXT: ret i64 [[LSR_IV1]]
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;
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entry:
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br label %loop.1.header
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loop.1.header:
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%iv = phi %struct.hoge* [ %iv.next, %loop.1.header ], [ %start, %entry ]
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%iv.next = getelementptr inbounds %struct.hoge, %struct.hoge* %iv, i64 1
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%ec = icmp eq %struct.hoge* %iv.next, %end
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br i1 %ec, label %loop.2.ph, label %loop.1.header
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loop.2.ph:
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br label %loop.2.header
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loop.2.header:
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%iv2 = phi %struct.hoge* [ %iv2.next, %loop.2.latch ], [ %iv.next, %loop.2.ph ]
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%tmp7 = getelementptr inbounds %struct.hoge, %struct.hoge* %iv2, i64 0, i32 3
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%tmp8 = ptrtoint i32* %tmp7 to i64
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call void @use.i64(i64 %tmp8)
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%tmp9 = getelementptr inbounds %struct.hoge, %struct.hoge* %iv2, i64 0, i32 2
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store i32 10, i32* %tmp9, align 8
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%ec.2 = icmp ugt %struct.hoge* %iv2, %ptr.2
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br i1 %ec.2, label %loop.2.exit, label %loop.2.latch
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loop.2.latch:
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%iv2.next = getelementptr inbounds %struct.hoge, %struct.hoge* %iv2, i64 1
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br label %loop.2.header
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loop.2.exit: ; preds = %bb6
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%iv2.cast = ptrtoint %struct.hoge* %iv2 to i64
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ret i64 %iv2.cast
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}
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declare void @use.i64(i64)
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