| Peter Collingbourne | 1213918 | 2015-04-23 20:31:22 +0000 | [diff] [blame] | 1 | ; RUN: llc -relocation-model=pic -mtriple=thumbv7-unknown-linux -o - %s | FileCheck %s |
| 2 | |
| 3 | @x = external global i32 |
| 4 | |
| 5 | ; CHECK: .globl foo |
| 6 | ; CHECK-NEXT: .align 2 |
| 7 | define i32* @foo() { |
| 8 | ret i32* @x |
| 9 | } |
| 10 | |
| 11 | ; CHECK: .globl bar |
| 12 | ; CHECK-NEXT: .align 1 |
| 13 | define i32* @bar() { |
| 14 | ret i32* zeroinitializer |
| 15 | } |
| Peter Collingbourne | d27d3a1 | 2015-05-01 18:05:59 +0000 | [diff] [blame] | 16 | |
| 17 | @a = external global i32 |
| 18 | @b = external global i32 |
| 19 | @c = external global i32 |
| 20 | @d = external global i32 |
| 21 | |
| 22 | ; Create a Thumb-2 jump table, which should force alignment to 4 bytes. |
| 23 | |
| 24 | ; CHECK: .globl baz |
| 25 | ; CHECK-NEXT: .align 2 |
| Quentin Colombet | 8cb95b8 | 2015-11-18 00:40:54 +0000 | [diff] [blame^] | 26 | ; CHECK: tbb |
| Peter Collingbourne | d27d3a1 | 2015-05-01 18:05:59 +0000 | [diff] [blame] | 27 | define i32 @baz() { |
| 28 | %1 = load i32, i32* @c, align 4 |
| 29 | switch i32 %1, label %7 [ |
| 30 | i32 1, label %2 |
| 31 | i32 4, label %5 |
| 32 | i32 9, label %5 |
| 33 | i32 3, label %8 |
| 34 | ] |
| 35 | |
| 36 | ; <label>:2 |
| 37 | %3 = load i32, i32* @a, align 4 |
| 38 | %4 = tail call i32 bitcast (i32 (...)* @fn2 to i32 (i32 (...)*, i32, i32)*)(i32 (...)* bitcast (i32 ()* @baz to i32 (...)*), i32 0, i32 %3) #2 |
| 39 | br label %8 |
| 40 | |
| 41 | ; <label>:5 |
| 42 | %6 = load i32, i32* @d, align 4 |
| 43 | store i32 %6, i32* @b, align 4 |
| 44 | br label %8 |
| 45 | |
| 46 | ; <label>:7 |
| 47 | br label %8 |
| 48 | |
| 49 | ; <label>:8 |
| 50 | %e.0 = phi i32 [ 1, %7 ], [ 1, %2 ], [ 0, %0 ], [ 0, %5 ] |
| 51 | ret i32 %e.0 |
| 52 | } |
| 53 | |
| 54 | declare i32 @fn2(...) |