1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -instsimplify -S | FileCheck %s 3 4target datalayout = "e-p:64:64:64-p1:16:16:16-p2:32:32:32-p3:64:64:64-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-n8:16:32:64" 5 6declare void @usei8ptr(i8* %ptr) 7 8; Ensure that we do not crash when looking at such a weird bitcast. 9define i1 @bitcast_from_single_element_pointer_vector_to_pointer(<1 x i8*> %ptr1vec, i8* %ptr2) { 10; CHECK-LABEL: @bitcast_from_single_element_pointer_vector_to_pointer( 11; CHECK-NEXT: [[PTR1:%.*]] = bitcast <1 x i8*> [[PTR1VEC:%.*]] to i8* 12; CHECK-NEXT: call void @usei8ptr(i8* [[PTR1]]) 13; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8* [[PTR1]], [[PTR2:%.*]] 14; CHECK-NEXT: ret i1 [[CMP]] 15; 16 %ptr1 = bitcast <1 x i8*> %ptr1vec to i8* 17 call void @usei8ptr(i8* %ptr1) 18 %cmp = icmp eq i8* %ptr1, %ptr2 19 ret i1 %cmp 20} 21 22; TODO: these should return poison 23 24define i1 @poison(i32 %x) { 25; CHECK-LABEL: @poison( 26; CHECK-NEXT: ret i1 undef 27; 28 %v = icmp eq i32 %x, poison 29 ret i1 %v 30} 31 32define i1 @poison2(i32 %x) { 33; CHECK-LABEL: @poison2( 34; CHECK-NEXT: ret i1 false 35; 36 %v = icmp slt i32 %x, poison 37 ret i1 %v 38} 39