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| author | Michael Matz <matz@suse.de> | 2016-10-08 22:50:16 +0200 |
|---|---|---|
| committer | Michael Matz <matz@suse.de> | 2016-12-15 17:49:55 +0100 |
| commit | a2a596e76724a7915361b4d0f1b5553929d26a31 (patch) | |
| tree | 2cc4185467b9003c95ce8e079dd11f9723e8c1d6 /x86_64-gen.c | |
| parent | ddd461dcc866d17f1c89137dc275ce1da95e7be2 (diff) | |
| download | tinycc-a2a596e76724a7915361b4d0f1b5553929d26a31.tar.gz tinycc-a2a596e76724a7915361b4d0f1b5553929d26a31.tar.bz2 | |
x86-64-asm: Accept high register in clobbers
The callee saved registers (among them r12-r15) really need
saving/restoring if mentioned in asm clobbers, even if TCC
itself doesn't use them. E.g. the linux kernel relies on that
in its switch_to() implementation.
Diffstat (limited to 'x86_64-gen.c')
| -rw-r--r-- | x86_64-gen.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/x86_64-gen.c b/x86_64-gen.c index 35ec1ab..408bb91 100644 --- a/x86_64-gen.c +++ b/x86_64-gen.c @@ -24,7 +24,7 @@ /* number of available registers */ #define NB_REGS 25 -#define NB_ASM_REGS 8 +#define NB_ASM_REGS 16 /* a register can belong to several classes. The classes must be sorted from more general to more precise (see gv2() code which does |