Mercurial > projects > ldc
comparison gen/abi-x86-64.cpp @ 1131:f2f13f111e2e
Workaround for LLVM PR 3861 (http://llvm.org/PR3861).
(LLVM abort()s in codegen if the second integer in a return value is <= i8 on
x86/x86-64)
This was breaking native compilation of Tango's TempFile module on x86-64.
| author | Frits van Bommel <fvbommel wxs.nl> |
|---|---|
| date | Mon, 23 Mar 2009 01:01:55 +0100 |
| parents | 40d7f9b7357f |
| children | 152bd2c804d0 |
comparison
equal
deleted
inserted
replaced
| 1130:30663babccff | 1131:f2f13f111e2e |
|---|---|
| 398 // Returns true if the struct fits in return registers in the x86-64 fastcc | 398 // Returns true if the struct fits in return registers in the x86-64 fastcc |
| 399 // calling convention. | 399 // calling convention. |
| 400 bool retStructInRegs(TypeStruct* st) { | 400 bool retStructInRegs(TypeStruct* st) { |
| 401 // 'fastcc' allows returns in up to two registers of each kind: | 401 // 'fastcc' allows returns in up to two registers of each kind: |
| 402 DRegCount state(2, 2, 2); | 402 DRegCount state(2, 2, 2); |
| 403 #if 1 | |
| 404 // TODO: Disable this if and when LLVM PR 3861 gets fixed. | |
| 405 | |
| 406 // LLVM currently doesn't allow a second int to be an i1 or i8. | |
| 407 // (See <http://llvm.org/PR3861>) | |
| 408 // Rather than complicating shouldPassStructInRegs(), just disallow | |
| 409 // second integers for now. | |
| 410 state.ints = 1; | |
| 411 #endif | |
| 403 return shouldPassStructInRegs(st, state); | 412 return shouldPassStructInRegs(st, state); |
| 404 } | 413 } |
| 405 | 414 |
| 406 // Heuristic for determining whether to pass a struct type directly or | 415 // Heuristic for determining whether to pass a struct type directly or |
| 407 // bump it to memory. | 416 // bump it to memory. |