30 lines
906 B
LLVM
30 lines
906 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -passes=gvn -S < %s | FileCheck %s
|
|
|
|
; Check that !nontemporal metadata is preserved only if both original
|
|
; instructions are marked.
|
|
define i64 @one_nontemporal(ptr %p) {
|
|
; CHECK-LABEL: @one_nontemporal(
|
|
; CHECK-NEXT: [[A:%.*]] = load i64, ptr [[P:%.*]], align 4
|
|
; CHECK-NEXT: [[C:%.*]] = add i64 [[A]], [[A]]
|
|
; CHECK-NEXT: ret i64 [[C]]
|
|
;
|
|
%a = load i64, ptr %p
|
|
%b = load i64, ptr %p, !nontemporal !0
|
|
%c = add i64 %a, %b
|
|
ret i64 %c
|
|
}
|
|
|
|
define i64 @both_nontemporal(ptr %p) {
|
|
; CHECK-LABEL: @both_nontemporal(
|
|
; CHECK-NEXT: [[A:%.*]] = load i64, ptr [[P:%.*]], align 4, !nontemporal !0
|
|
; CHECK-NEXT: [[C:%.*]] = add i64 [[A]], [[A]]
|
|
; CHECK-NEXT: ret i64 [[C]]
|
|
;
|
|
%a = load i64, ptr %p, !nontemporal !0
|
|
%b = load i64, ptr %p, !nontemporal !0
|
|
%c = add i64 %a, %b
|
|
ret i64 %c
|
|
}
|
|
|
|
!0 = !{i32 1}
|