| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | |
| ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s | |
| ; Reproducer for a crash in computeKnownBitsFromOperator due to blindly | |
| ; casting from llvm::Operator to ExtractElementInst. That does not work | |
| ; if the Operator is a ConstantExpr. | |
| @g = global [21 x i32] zeroinitializer | |
| define i32 @test1(i32 %a) { | |
| ; CHECK-LABEL: @test1( | |
| ; CHECK-NEXT: [[T:%.*]] = sub i32 [[A:%.*]], ptrtoint (ptr getelementptr inbounds ([21 x i32], ptr @g, i32 0, i32 17) to i32) | |
| ; CHECK-NEXT: ret i32 [[T]] | |
| ; | |
| %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) | |
| ret i32 %t | |
| } |