| Juergen Ributzka | 99bd3cb | 2014-10-02 22:21:49 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s |
| Lang Hames | f49bc3f | 2014-07-24 20:40:55 +0000 | [diff] [blame] | 2 | |
| 3 | ; Check that the X86 stackmap shadow optimization is only outputting a 1-byte |
| 4 | ; nop here. 8-bytes are requested, but 7 are covered by the code for the call to |
| 5 | ; bar, the frame teardown and the return. |
| 6 | define void @shadow_optimization_test() { |
| 7 | entry: |
| 8 | ; CHECK-LABEL: shadow_optimization_test: |
| 9 | ; CHECK: callq _bar |
| 10 | ; CHECK-NOT: nop |
| 11 | ; CHECK: callq _bar |
| 12 | ; CHECK: retq |
| 13 | ; CHECK: nop |
| 14 | call void @bar() |
| 15 | tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 0, i32 8) |
| 16 | call void @bar() |
| 17 | ret void |
| 18 | } |
| 19 | |
| 20 | declare void @llvm.experimental.stackmap(i64, i32, ...) |
| Juergen Ributzka | 99bd3cb | 2014-10-02 22:21:49 +0000 | [diff] [blame] | 21 | declare void @bar() |