1 ; RUN: llc -O0 -fast-isel-abort=1 -verify-machineinstrs -mtriple=arm64-apple-darwin < %s | 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 [[REG:x[0-9]+]], _seed@GOTPAGE 10 ; CHECK: ldr [[REG2:x[0-9]+]], {{\[}}[[REG]], _seed@GOTPAGEOFF{{\]}} 11 ; CHECK: str {{x[0-9]+}}, {{\[}}[[REG2]]{{\]}} 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 [[REG1:x[0-9]+]], _seed@GOTPAGE 20 ; CHECK: ldr [[REG2:x[0-9]+]], {{\[}}[[REG1]], _seed@GOTPAGEOFF{{\]}} 21 ; CHECK: mov [[REG3:x[0-9]+]], #13849 22 ; CHECK: mov [[REG4:x[0-9]+]], #1309 23 ; CHECK: ldr [[REG5:x[0-9]+]], {{\[}}[[REG2]]{{\]}} 24 ; CHECK: mul [[REG6:x[0-9]+]], [[REG5]], [[REG4]] 25 ; CHECK: add [[REG7:x[0-9]+]], [[REG6]], [[REG3]] 26 ; CHECK: and [[REG8:x[0-9]+]], [[REG7]], #0xffff 27 ; CHECK: str [[REG8]], {{\[}}[[REG1]]{{\]}} 28 ; CHECK: ldr {{x[0-9]+}}, {{\[}}[[REG1]]{{\]}} 29 %0 = load i64, i64* @seed, align 8 30 %mul = mul nsw i64 %0, 1309 31 %add = add nsw i64 %mul, 13849 32 %and = and i64 %add, 65535 33 store i64 %and, i64* @seed, align 8 34 %1 = load i64, i64* @seed, align 8 35 %conv = trunc i64 %1 to i32 36 ret i32 %conv 37 } 38
