| ; RUN: llc -O0 -fast-isel -fast-isel-abort=1 -verify-machineinstrs -mtriple=arm64-apple-darwin < %s | FileCheck %s |
| |
| ; Test load/store of global value from global offset table. |
| @seed = common global i64 0, align 8 |
| |
| define void @Initrand() nounwind { |
| entry: |
| ; CHECK: @Initrand |
| ; CHECK: adrp [[REG:x[0-9]+]], _seed@GOTPAGE |
| ; CHECK: ldr [[REG2:x[0-9]+]], [[[REG]], _seed@GOTPAGEOFF] |
| ; CHECK: str {{x[0-9]+}}, [[[REG2]]] |
| store i64 74755, i64* @seed, align 8 |
| ret void |
| } |
| |
| define i32 @Rand() nounwind { |
| entry: |
| ; CHECK: @Rand |
| ; CHECK: adrp [[REG1:x[0-9]+]], _seed@GOTPAGE |
| ; CHECK: ldr [[REG2:x[0-9]+]], [[[REG1]], _seed@GOTPAGEOFF] |
| ; CHECK: ldr [[REG5:x[0-9]+]], [[[REG2]]] |
| ; CHECK: mov [[REG4:x[0-9]+]], #1309 |
| ; CHECK: mul [[REG6:x[0-9]+]], [[REG5]], [[REG4]] |
| ; CHECK: mov [[REG3:x[0-9]+]], #13849 |
| ; CHECK: add [[REG7:x[0-9]+]], [[REG6]], [[REG3]] |
| ; CHECK: and [[REG8:x[0-9]+]], [[REG7]], #0xffff |
| ; CHECK: adrp [[REG1:x[0-9]+]], _seed@GOTPAGE |
| ; CHECK: ldr [[REG1]], [[[REG1]], _seed@GOTPAGEOFF] |
| ; CHECK: str [[REG8]], [[[REG1]]] |
| ; CHECK: adrp [[REG1:x[0-9]+]], _seed@GOTPAGE |
| ; CHECK: ldr [[REG1]], [[[REG1]], _seed@GOTPAGEOFF] |
| ; CHECK: ldr {{x[0-9]+}}, [[[REG1]]] |
| %0 = load i64, i64* @seed, align 8 |
| %mul = mul nsw i64 %0, 1309 |
| %add = add nsw i64 %mul, 13849 |
| %and = and i64 %add, 65535 |
| store i64 %and, i64* @seed, align 8 |
| %1 = load i64, i64* @seed, align 8 |
| %conv = trunc i64 %1 to i32 |
| ret i32 %conv |
| } |
