1 ; RUN: llc < %s -O0 -fast-isel-abort -mtriple=arm64-apple-darwin | FileCheck %s 2 3 ; Test load/store of global value from global offset table. 4 @seed = common global i64 0, align 8 5 6 define void @Initrand() nounwind { 7 entry: 8 ; CHECK: @Initrand 9 ; CHECK: adrp x[[REG:[0-9]+]], _seed@GOTPAGE 10 ; CHECK: ldr x[[REG2:[0-9]+]], [x[[REG]], _seed@GOTPAGEOFF] 11 ; CHECK: str x{{[0-9]+}}, [x[[REG2]]] 12 store i64 74755, i64* @seed, align 8 13 ret void 14 } 15 16 define i32 @Rand() nounwind { 17 entry: 18 ; CHECK: @Rand 19 ; CHECK: adrp x[[REG:[0-9]+]], _seed@GOTPAGE 20 ; CHECK: ldr x[[REG2:[0-9]+]], [x[[REG]], _seed@GOTPAGEOFF] 21 ; CHECK: movz x[[REG3:[0-9]+]], #0x51d 22 ; CHECK: ldr x[[REG4:[0-9]+]], [x[[REG2]]] 23 ; CHECK: mul x[[REG5:[0-9]+]], x[[REG4]], x[[REG3]] 24 ; CHECK: movz x[[REG6:[0-9]+]], #0x3619 25 ; CHECK: add x[[REG7:[0-9]+]], x[[REG5]], x[[REG6]] 26 ; CHECK: orr x[[REG8:[0-9]+]], xzr, #0xffff 27 ; CHECK: and x[[REG9:[0-9]+]], x[[REG7]], x[[REG8]] 28 ; CHECK: str x[[REG9]], [x[[REG]]] 29 ; CHECK: ldr x{{[0-9]+}}, [x[[REG]]] 30 %0 = load i64* @seed, align 8 31 %mul = mul nsw i64 %0, 1309 32 %add = add nsw i64 %mul, 13849 33 %and = and i64 %add, 65535 34 store i64 %and, i64* @seed, align 8 35 %1 = load i64* @seed, align 8 36 %conv = trunc i64 %1 to i32 37 ret i32 %conv 38 } 39
