forked from OSchip/llvm-project
39 lines
905 B
LLVM
39 lines
905 B
LLVM
; REQUIRES: asserts
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; RUN: opt < %s -indvars -disable-output -stats -info-output-file - | FileCheck %s
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; Check that IndVarSimplify is not creating unnecessary canonical IVs
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; that will never be used.
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; CHECK-NOT: indvars
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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@ue = external global i64
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define i32 @foo() nounwind {
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entry:
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br label %bb38.i
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bb14.i27:
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%t0 = load i64, i64* @ue, align 8
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%t1 = sub i64 %t0, %i.0.i35
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%t2 = add i64 %t1, 1
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br i1 undef, label %bb15.i28, label %bb19.i31
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bb15.i28:
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br label %bb19.i31
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bb19.i31:
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%y.0.i = phi i64 [ %t2, %bb15.i28 ], [ %t2, %bb14.i27 ]
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br label %bb35.i
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bb35.i:
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br i1 undef, label %bb37.i, label %bb14.i27
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bb37.i:
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%t3 = add i64 %i.0.i35, 1
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br label %bb38.i
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bb38.i:
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%i.0.i35 = phi i64 [ 1, %entry ], [ %t3, %bb37.i ]
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br label %bb35.i
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}
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