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| author | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2015-04-22 14:27:12 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2015-04-22 14:27:12 +0200 |
| commit | 0bf99217426a44046ef0aaa7f84a9b2a3646ed89 (patch) | |
| tree | e4f983980a5001792b90ed8f3dbd8fa241e43eb1 /backend/CSE.v | |
| parent | 08b2b46f15e70b11c044e4e9a7c8438a96d57ed7 (diff) | |
| parent | ca4aa822693f4d98de99fd3f13c1523d733e1cb0 (diff) | |
| download | compcert-0bf99217426a44046ef0aaa7f84a9b2a3646ed89.tar.gz compcert-0bf99217426a44046ef0aaa7f84a9b2a3646ed89.zip | |
Merge pull request #40 from AbsInt/inline-asm
GCC-style extended inline asm.
The subset implemented is:
- zero or one output
- output constraints "=r" (to register) or "=m" (to memory)
- zero, one or several inputs
- input constraints "r" (in register), "m" (in memory), "i" and "n" (compile-time integer constant)
- clobbered registers (the 3rd argument)
- both anonymous (%3) and named (%[name]) operands
- modifiers %R and %Q to refer to the most significant / least significant part of a register pair holding a 64-bit integer. (Undocumented GCC ARM feature.)
All asm statements are treated as "volatile", possibly modifying memory and condition codes.
Diffstat (limited to 'backend/CSE.v')
| -rw-r--r-- | backend/CSE.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/backend/CSE.v b/backend/CSE.v index 2c0c5f33..e9006d4f 100644 --- a/backend/CSE.v +++ b/backend/CSE.v @@ -476,7 +476,7 @@ Definition transfer (f: function) (approx: PMap.t VA.t) (pc: node) (before: numb empty_numbering | Ibuiltin ef args res s => match ef with - | EF_external _ _ | EF_malloc | EF_free | EF_inline_asm _ => + | EF_external _ _ | EF_malloc | EF_free | EF_inline_asm _ _ _ => empty_numbering | EF_builtin _ _ | EF_vstore _ | EF_vstore_global _ _ _ => set_unknown (kill_all_loads before) res |