Stream: git-wasmtime

Topic: wasmtime / Issue #1145 Epilogue instructions don't set So...

Wasmtime GitHub notifications bot (Mar 20 2021 at 17:40):

bjorn3 commented on Issue #1145:

Fixed with new x64 backend.

Wasmtime GitHub notifications bot (Mar 20 2021 at 17:40):

bjorn3 closed Issue #1145:

• What are the steps to reproduce the issue?
  ```
  test compile
  target x86_64

  function u0:0() system_v {
  ebb0:
  nop
  @0001 return
  }
  ```

• What do you expect to happen? What does actually happen? Does it panic, and
  if so, with which assertion?

  ```
  test compile
  target x86_64
  function u0:0(i64 fp [%rbp]) -> i64 fp [%rbp] system_v {
  ss0 = incoming_arg 16, offset -16

                                ebb0(v4: i64 [%rbp]):
  

  [RexOp1pushq#50] x86_push v4
  [RexOp1copysp#8089] copy_special %rsp -> %rbp
  [-] nop
  [RexOp1popq#58,%rbp] v5 = x86_pop.i64 ; <-- this should use @0001 as srcloc
  @0001 [Op1ret#c3] return v5
  }
  ```

  This causes debuggers to switch between function start and end as current position with cg_clif generated executables when returning from a function.

• Which Cranelift version / commit hash / branch are you using? 387593d6c94d291e614c08d7a03f77b40efa451d

Last updated: Dec 23 2024 at 12:05 UTC