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