1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
4 ; Reproducer for a crash in computeKnownBitsFromOperator due to blindly
5 ; casting from llvm::Operator to ExtractElementInst. That does not work
6 ; if the Operator is a ConstantExpr.
7 @g = global [21 x i32] zeroinitializer
8 define i32 @test1(i32 %a) {
10 ; CHECK-NEXT: [[T:%.*]] = sub i32 [[A:%.*]], extractelement (<4 x i32> ptrtoint (<4 x ptr> getelementptr inbounds ([21 x i32], ptr @g, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 17>) to <4 x i32>), i32 3)
11 ; CHECK-NEXT: ret i32 [[T]]
13 %t = sub i32 %a, extractelement (<4 x i32> ptrtoint (<4 x ptr> getelementptr inbounds ([21 x i32], ptr @g, <4 x i32> zeroinitializer, <4 x i32> <i32 1, i32 2, i32 3, i32 17>) to <4 x i32>), i32 3)