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| author | Antonin ENFRUN <antonin.e@me.com> | 2014-05-12 00:24:41 +0200 |
|---|---|---|
| committer | Antonin ENFRUN <antonin.e@me.com> | 2014-05-12 09:06:18 +0200 |
| commit | ceac71f1f54220d64c87a0c2ebfd583ea49ca037 (patch) | |
| tree | d1d723666f031c0478925749c4da451f7fa95b9c | |
| parent | 1b901c320b28b85ea83972570675f2e701a06b4e (diff) | |
| download | micropython-ceac71f1f54220d64c87a0c2ebfd583ea49ca037.tar.gz micropython-ceac71f1f54220d64c87a0c2ebfd583ea49ca037.zip | |
unix: Add asm statements needed to read registers with clang. Code generated by gcc 4.9.0 is unchanged (same statements, different order).
Both are inefficient, saving unmodified registers on the stack.
| -rw-r--r-- | unix/gccollect.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/unix/gccollect.c b/unix/gccollect.c index 647a1214de..1b5a38ffc6 100644 --- a/unix/gccollect.c +++ b/unix/gccollect.c @@ -43,11 +43,17 @@ typedef machine_uint_t regs_t[6]; void gc_helper_get_regs(regs_t arr) { register long rbx asm ("rbx"); + asm("" : "=r"(rbx)); register long rbp asm ("rbp"); + asm("" : "=r"(rbp)); register long r12 asm ("r12"); + asm("" : "=r"(r12)); register long r13 asm ("r13"); + asm("" : "=r"(r13)); register long r14 asm ("r14"); + asm("" : "=r"(r14)); register long r15 asm ("r15"); + asm("" : "=r"(r15)); arr[0] = rbx; arr[1] = rbp; arr[2] = r12; |