90c1846629
Fixes https://github.com/llvm/llvm-project/issues/59777 Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D140836
32 lines
1.1 KiB
LLVM
32 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=indvars -S < %s | FileCheck %s
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; PR59777
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define i2 @iv_hoist_nsw_poison(i2 %arg) {
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; CHECK-LABEL: @iv_hoist_nsw_poison(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[DOT07:%.*]] = phi i2 [ 1, [[BB:%.*]] ], [ [[I:%.*]], [[BB1]] ]
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; CHECK-NEXT: [[I]] = add nuw i2 [[DOT07]], 1
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; CHECK-NEXT: [[DOTNOT_NOT:%.*]] = icmp ult i2 1, [[ARG:%.*]]
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; CHECK-NEXT: br i1 [[DOTNOT_NOT]], label [[COMMON_RET:%.*]], label [[BB1]]
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; CHECK: common.ret:
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; CHECK-NEXT: [[I2_LCSSA:%.*]] = phi i2 [ [[I]], [[BB1]] ]
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; CHECK-NEXT: ret i2 [[I2_LCSSA]]
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;
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bb:
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br label %bb1
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bb1: ; preds = %bb1, %bb
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%.07 = phi i2 [ 1, %bb ], [ %i, %bb1 ]
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%.0 = phi i2 [ 1, %bb ], [ %i2, %bb1 ]
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%i = add nsw i2 %.07, 1
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%i2 = add i2 %.0, 1
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%.not.not = icmp ult i2 %.07, %arg
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br i1 %.not.not, label %common.ret, label %bb1
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common.ret: ; preds = %bb1
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ret i2 %i2
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}
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