Implement the jit_align interface - lightning.git - Portable just-in-time compiler library

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authorpcpa <paulo.cesar.pereira.de.andrade@gmail.com>2014年10月14日 17:05:25 -0300
committerpcpa <paulo.cesar.pereira.de.andrade@gmail.com>2014年10月14日 17:05:25 -0300
commitafae5407f67646254c868a9fde6da97609d5f69d (patch)
treef50e3a56cb2acfde87ad64cb1441b38cdec3cabb /lib/jit_alpha-cpu.c
parentdbb1bb24099caad8e106a1b80f831b131b3d8e87 (diff)
downloadlightning-afae5407f67646254c868a9fde6da97609d5f69d.tar.gz
Implement the jit_align interface
* lib/jit_aarch64-cpu.c, lib/jit_alpha-cpu.c, lib/jit_arm-cpu.c, lib/jit_hppa-cpu.c, lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c, lib/jit_sparc-cpu.c: Implement or correct the internal nop(count) call that receives an argument that tells the modulo bytes to align the code for the next instruction. * include/lightning.h, lib/lightning.c, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c: Implement the new jit_align() call that receive an argument, that tells the modulo, in bytes, to align the next instruction. In most backends the only value that makes a difference is a value that matches sizeof(void*), as all other values usually are already automatically aligned in labels, but not guaranteed to be aligned at word size bytes. * check/align.ok, check/align.tst: New files, implementing a simple test for the new jit_align() interface. * check/Makefile.am, check/lightning.c, lib/jit_aarch64-sz.c, lib/jit_alpha-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c, lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c, lib/jit_print.c, lib/jit_s390x-sz.c, lib/jit_sparc-sz.c, lib/jit_x86-sz.c: Update for the new jit_code_align code and the jit_align() interface.
Diffstat (limited to 'lib/jit_alpha-cpu.c')
-rw-r--r--lib/jit_alpha-cpu.c 10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/jit_alpha-cpu.c b/lib/jit_alpha-cpu.c
index 8fe4338..8787b0f 100644
--- a/lib/jit_alpha-cpu.c
+++ b/lib/jit_alpha-cpu.c
@@ -303,6 +303,8 @@ static void _Opi(jit_state_t*,int,int,unsigned int,unsigned int,int);
# define NEGL(ra,rc) SUBL(_R31_REGNO,ra,rc)
# define NEGQ(ra,rc) SUBQ(_R31_REGNO,ra,rc)
# define NOT(ra,rc) ORNOT(_R31_REGNO,ra,rc)
+# define nop(i0) _nop(_jit,i0)
+static void _nop(jit_state_t*,jit_int32_t);
# define movr(r0,r1) _movr(_jit,r0,r1)
static void _movr(jit_state_t*,jit_int32_t,jit_int32_t);
# define movi(r0,i0) _movi(_jit,r0,i0)
@@ -704,6 +706,14 @@ _Opi(jit_state_t *_jit, int o, int ra, unsigned int i, unsigned int f, int rc)
}
static void
+_nop(jit_state_t *_jit, jit_int32_t i0)
+{
+ for (; i0 > 0; i0 -= 4)
+ NOP();
+ assert(i0 == 0);
+}
+
+static void
_movr(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
{
if (r0 != r1)
generated by cgit v1.2.3 (git 2.39.1) at 2025年09月25日 18:48:06 +0000

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