26 lines
815 B
LLVM
26 lines
815 B
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
||
|
|
; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s
|
||
|
|
|
||
|
|
@a = external dso_local local_unnamed_addr global i64, align 8
|
||
|
|
@c = external dso_local local_unnamed_addr global i64, align 8
|
||
|
|
@b = external dso_local local_unnamed_addr global i64, align 8
|
||
|
|
|
||
|
|
; Should generate a 16-bit load
|
||
|
|
|
||
|
|
define void @foo() {
|
||
|
|
; CHECK-LABEL: foo:
|
||
|
|
; CHECK: # %bb.0: # %entry
|
||
|
|
; CHECK-NEXT: movzwl a+{{.*}}(%rip), %eax
|
||
|
|
; CHECK-NEXT: movq %rax, {{.*}}(%rip)
|
||
|
|
; CHECK-NEXT: retq
|
||
|
|
entry:
|
||
|
|
%0 = load i64, i64* @a, align 8
|
||
|
|
%1 = load i64, i64* @c, align 8
|
||
|
|
%and = and i64 %1, -16384
|
||
|
|
%add = add nsw i64 %and, 4503359447364223024
|
||
|
|
%shr = lshr i64 %0, %add
|
||
|
|
%conv1 = and i64 %shr, 4294967295
|
||
|
|
store i64 %conv1, i64* @b, align 8
|
||
|
|
ret void
|
||
|
|
}
|