| Hans Wennborg | c4b1d20 | 2016-09-22 19:50:05 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -O1 -mtriple=x86_64-pc-win32 | FileCheck %s -check-prefix=ASM |
| 2 | ; RUN: llc < %s -O1 -mtriple=x86_64-pc-win32 -filetype=obj -o %t |
| 3 | ; RUN: llvm-readobj -unwind %t | FileCheck %s -check-prefix=READOBJ |
| 4 | |
| 5 | declare void @g(i32) |
| 6 | |
| 7 | define i32 @not_leaf(i32) uwtable { |
| 8 | entry: |
| 9 | call void @g(i32 42) |
| 10 | ret i32 42 |
| 11 | |
| 12 | ; ASM-LABEL: not_leaf: |
| 13 | ; ASM: .seh |
| 14 | |
| 15 | ; READOBJ: RuntimeFunction { |
| 16 | ; READOBJ-NEXT: StartAddress: not_leaf |
| 17 | ; READOBJ-NEXT: EndAddress: not_leaf |
| 18 | } |
| 19 | |
| 20 | define void @leaf_func(i32) uwtable { |
| 21 | entry: |
| 22 | tail call void @g(i32 42) |
| 23 | ret void |
| 24 | |
| 25 | ; A Win64 "leaf" function gets no .seh directives in the asm. |
| 26 | ; ASM-LABEL: leaf_func: |
| 27 | ; ASM-NOT: .seh |
| 28 | |
| 29 | ; and no unwind info in the object file. |
| 30 | ; READOBJ-NOT: leaf_func |
| 31 | } |
| Reid Kleckner | 5c0bdef | 2017-05-03 23:13:42 +0000 | [diff] [blame] | 32 | |
| 33 | define void @naked_func() naked { |
| 34 | call void asm sideeffect "ret", ""() |
| 35 | unreachable |
| 36 | } |
| 37 | ; ASM-LABEL: naked_func: |
| 38 | ; ASM-NOT: .seh_ |
| 39 | ; ASM: ret |
| 40 | ; ASM-NOT: .seh_ |