113 lines
4.1 KiB
LLVM
113 lines
4.1 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:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
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target triple = "x86_64-unknown-linux-gnu"
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; Make sure we do not crash when applying info from loop guards to expressions in @bar.
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; Test case for PR47776.
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define void @bar() personality i32* ()* @zot {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: bb1.loopexit:
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; CHECK-NEXT: br label [[BB1]]
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; CHECK: bb1:
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; CHECK-NEXT: [[TMP:%.*]] = phi i32 [ 1, [[BB:%.*]] ], [ 0, [[BB1_LOOPEXIT:%.*]] ]
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; CHECK-NEXT: br label [[BB2:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: [[TMP3:%.*]] = phi i64 [ 0, [[BB1]] ], [ [[TMP7:%.*]], [[BB5:%.*]] ]
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; CHECK-NEXT: [[TMP4:%.*]] = invoke i32 @fn()
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; CHECK-NEXT: to label [[BB5]] unwind label [[BB23_LOOPEXIT_SPLIT_LP:%.*]]
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; CHECK: bb5:
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; CHECK-NEXT: [[TMP6:%.*]] = load atomic i32, i32 addrspace(1)* undef unordered, align 8
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; CHECK-NEXT: [[TMP7]] = add nuw nsw i64 [[TMP3]], 1
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; CHECK-NEXT: [[C_0:%.*]] = icmp ult i64 [[TMP7]], 10000
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; CHECK-NEXT: br i1 [[C_0]], label [[BB2]], label [[BB8:%.*]]
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; CHECK: bb8:
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; CHECK-NEXT: [[TMP9:%.*]] = icmp ult i32 [[TMP]], [[TMP6]]
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; CHECK-NEXT: br i1 [[TMP9]], label [[BB10:%.*]], label [[BB29:%.*]]
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; CHECK: bb10:
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; CHECK-NEXT: [[TMP11:%.*]] = mul i32 [[TMP]], -1
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; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[TMP11]] to i64
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; CHECK-NEXT: [[TMP1:%.*]] = add nsw i64 [[TMP0]], 1
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; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], [[TMP7]]
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; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[TMP2]] to i32
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; CHECK-NEXT: [[TMP16:%.*]] = and i32 [[TMP1]], 7
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; CHECK-NEXT: br label [[BB17:%.*]]
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; CHECK: bb17:
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; CHECK-NEXT: [[TMP18:%.*]] = phi i32 [ [[TMP21:%.*]], [[BB20:%.*]] ], [ [[TMP16]], [[BB10]] ]
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; CHECK-NEXT: [[TMP19:%.*]] = invoke i32 @fn()
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; CHECK-NEXT: to label [[BB20]] unwind label [[BB23_LOOPEXIT:%.*]]
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; CHECK: bb20:
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; CHECK-NEXT: [[TMP21]] = add i32 [[TMP18]], -1
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; CHECK-NEXT: [[TMP22:%.*]] = icmp eq i32 [[TMP21]], 0
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; CHECK-NEXT: br i1 [[TMP22]], label [[BB1_LOOPEXIT]], label [[BB17]]
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; CHECK: bb23.loopexit:
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; CHECK-NEXT: [[LPAD_LOOPEXIT:%.*]] = landingpad token
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: br label [[BB23:%.*]]
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; CHECK: bb23.loopexit.split-lp:
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; CHECK-NEXT: [[LPAD_LOOPEXIT_SPLIT_LP:%.*]] = landingpad token
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: br label [[BB23]]
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; CHECK: bb23:
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; CHECK-NEXT: ret void
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; CHECK: bb29:
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; CHECK-NEXT: ret void
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;
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bb:
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br label %bb1
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bb1: ; preds = %bb20, %bb
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%tmp = phi i32 [ 1, %bb ], [ 0, %bb20 ]
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br label %bb2
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bb2: ; preds = %bb5, %bb1
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%tmp3 = phi i64 [ 0, %bb1 ], [ %tmp7, %bb5 ]
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%tmp4 = invoke i32 @fn()
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to label %bb5 unwind label %bb23
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bb5: ; preds = %bb2
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%tmp6 = load atomic i32, i32 addrspace(1)* undef unordered, align 8
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%tmp7 = add nuw nsw i64 %tmp3, 1
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%c.0 = icmp ult i64 %tmp7, 10000
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br i1 %c.0, label %bb2, label %bb8
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bb8: ; preds = %bb5
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%tmp9 = icmp ult i32 %tmp, %tmp6
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br i1 %tmp9, label %bb10, label %bb29
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bb10: ; preds = %bb8
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%tmp11 = mul i32 %tmp, -1
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%tmp12 = zext i32 %tmp11 to i64
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%tmp13 = sub i64 %tmp12, %tmp7
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%tmp14 = add i64 %tmp13, 1
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%tmp15 = trunc i64 %tmp14 to i32
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%tmp16 = and i32 %tmp15, 7
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br label %bb17
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bb17: ; preds = %bb20, %bb10
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%tmp18 = phi i32 [ %tmp21, %bb20 ], [ %tmp16, %bb10 ]
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%tmp19 = invoke i32 @fn()
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to label %bb20 unwind label %bb23
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bb20: ; preds = %bb17
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%tmp21 = add i32 %tmp18, -1
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%tmp22 = icmp eq i32 %tmp21, 0
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br i1 %tmp22, label %bb1, label %bb17
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bb23: ; preds = %bb17
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%tmp24 = landingpad token
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cleanup
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ret void
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bb29: ; preds = %bb8
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ret void
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}
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declare i32* @zot() #1
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declare i32 @fn()
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