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29 lines
958 B
LLVM
29 lines
958 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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; PR6165
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define i32 @f() {
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; CHECK-LABEL: @f(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: BB1:
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; CHECK-NEXT: [[X:%.*]] = phi i32 [ -29, [[ENTRY:%.*]] ], [ 0, [[BB1]] ]
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; CHECK-NEXT: [[REM:%.*]] = srem i32 [[X]], 2
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; CHECK-NEXT: [[T:%.*]] = icmp eq i32 [[REM]], -1
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; CHECK-NEXT: br i1 [[T]], label [[BB2:%.*]], label [[BB1]]
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; CHECK: BB2:
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; CHECK-NEXT: ret i32 [[X]]
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;
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entry:
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br label %BB1
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BB1: ; preds = %BB1, %entry
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%x = phi i32 [ -29, %entry ], [ 0, %BB1 ] ; <i32> [#uses=2]
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%rem = srem i32 %x, 2 ; <i32> [#uses=1]
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%t = icmp eq i32 %rem, -1 ; <i1> [#uses=1]
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br i1 %t, label %BB2, label %BB1
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BB2: ; preds = %BB1
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ret i32 %x
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}
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