1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s 3 4 @a = external dso_local local_unnamed_addr global i64, align 8 5 @c = external dso_local local_unnamed_addr global i64, align 8 6 @b = external dso_local local_unnamed_addr global i64, align 8 7 8 ; Should generate a 16-bit load 9 10 define void @foo() { 11 ; CHECK-LABEL: foo: 12 ; CHECK: # %bb.0: # %entry 13 ; CHECK-NEXT: movzwl a+{{.*}}(%rip), %eax 14 ; CHECK-NEXT: movq %rax, {{.*}}(%rip) 15 ; CHECK-NEXT: retq 16 entry: 17 %0 = load i64, i64* @a, align 8 18 %1 = load i64, i64* @c, align 8 19 %and = and i64 %1, -16384 20 %add = add nsw i64 %and, 4503359447364223024 21 %shr = lshr i64 %0, %add 22 %conv1 = and i64 %shr, 4294967295 23 store i64 %conv1, i64* @b, align 8 24 ret void 25 } 26
