e499bc3042
In one case, we were handling out of bounds, but not undef indices. In the other, we were handling undef (with the comment making the analogy to out of bounds), but not out of bounds. Be consistent and treat both undef and constant out of bounds indices as producing undefined results. As a side effect, this also protects instcombine from having to handle large constant indices as we always simplify first. llvm-svn: 321575
20 lines
594 B
LLVM
20 lines
594 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
define i32 @extractelement_out_of_range(<2 x i32> %x) {
|
|
; CHECK-LABEL: @extractelement_out_of_range(
|
|
; CHECK-NEXT: ret i32 undef
|
|
;
|
|
%E1 = extractelement <2 x i32> %x, i8 16
|
|
ret i32 %E1
|
|
}
|
|
|
|
define i32 @extractelement_type_out_of_range(<2 x i32> %x) {
|
|
; CHECK-LABEL: @extractelement_type_out_of_range(
|
|
; CHECK-NEXT: [[E1:%.*]] = extractelement <2 x i32> [[X:%.*]], i128 0
|
|
; CHECK-NEXT: ret i32 [[E1]]
|
|
;
|
|
%E1 = extractelement <2 x i32> %x, i128 0
|
|
ret i32 %E1
|
|
}
|