Cleanup CPU detection and tuning for old CPUs.
This commit is contained in:
Mike Pall
92
src/lj_jit.h
92
src/lj_jit.h
@@ -9,47 +9,49 @@
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#include "lj_obj.h"
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#include "lj_ir.h"
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/* JIT engine flags. */
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/* -- JIT engine flags ---------------------------------------------------- */
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/* General JIT engine flags. 4 bits. */
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#define JIT_F_ON 0x00000001
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/* CPU-specific JIT engine flags. */
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/* CPU-specific JIT engine flags. 12 bits. Flags and strings must match. */
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#define JIT_F_CPU 0x00000010
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#if LJ_TARGET_X86ORX64
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#define JIT_F_SSE2 0x00000010
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#define JIT_F_SSE3 0x00000020
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#define JIT_F_SSE4_1 0x00000040
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#define JIT_F_PREFER_IMUL 0x00000080
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#define JIT_F_LEA_AGU 0x00000100
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#define JIT_F_BMI2 0x00000200
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/* Names for the CPU-specific flags. Must match the order above. */
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#define JIT_F_CPU_FIRST JIT_F_SSE2
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#define JIT_F_CPUSTRING "\4SSE2\4SSE3\6SSE4.1\3AMD\4ATOM\4BMI2"
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#define JIT_F_SSE3 (JIT_F_CPU << 0)
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#define JIT_F_SSE4_1 (JIT_F_CPU << 1)
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#define JIT_F_BMI2 (JIT_F_CPU << 2)
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#define JIT_F_CPUSTRING "\4SSE3\6SSE4.1\4BMI2"
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#elif LJ_TARGET_ARM
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#define JIT_F_ARMV6_ 0x00000010
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#define JIT_F_ARMV6T2_ 0x00000020
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#define JIT_F_ARMV7 0x00000040
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#define JIT_F_VFPV2 0x00000080
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#define JIT_F_VFPV3 0x00000100
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#define JIT_F_ARMV6 (JIT_F_ARMV6_|JIT_F_ARMV6T2_|JIT_F_ARMV7)
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#define JIT_F_ARMV6T2 (JIT_F_ARMV6T2_|JIT_F_ARMV7)
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#define JIT_F_ARMV6_ (JIT_F_CPU << 0)
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#define JIT_F_ARMV6T2_ (JIT_F_CPU << 1)
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#define JIT_F_ARMV7 (JIT_F_CPU << 2)
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#define JIT_F_ARMV8 (JIT_F_CPU << 3)
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#define JIT_F_VFPV2 (JIT_F_CPU << 4)
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#define JIT_F_VFPV3 (JIT_F_CPU << 5)
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#define JIT_F_ARMV6 (JIT_F_ARMV6_|JIT_F_ARMV6T2_|JIT_F_ARMV7|JIT_F_ARMV8)
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#define JIT_F_ARMV6T2 (JIT_F_ARMV6T2_|JIT_F_ARMV7|JIT_F_ARMV8)
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#define JIT_F_VFP (JIT_F_VFPV2|JIT_F_VFPV3)
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/* Names for the CPU-specific flags. Must match the order above. */
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#define JIT_F_CPU_FIRST JIT_F_ARMV6_
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#define JIT_F_CPUSTRING "\5ARMv6\7ARMv6T2\5ARMv7\5VFPv2\5VFPv3"
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#define JIT_F_CPUSTRING "\5ARMv6\7ARMv6T2\5ARMv7\5ARMv8\5VFPv2\5VFPv3"
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#elif LJ_TARGET_PPC
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#define JIT_F_SQRT 0x00000010
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#define JIT_F_ROUND 0x00000020
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/* Names for the CPU-specific flags. Must match the order above. */
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#define JIT_F_CPU_FIRST JIT_F_SQRT
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#define JIT_F_SQRT (JIT_F_CPU << 0)
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#define JIT_F_ROUND (JIT_F_CPU << 1)
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#define JIT_F_CPUSTRING "\4SQRT\5ROUND"
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#elif LJ_TARGET_MIPS
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#define JIT_F_MIPSXXR2 0x00000010
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/* Names for the CPU-specific flags. Must match the order above. */
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#define JIT_F_CPU_FIRST JIT_F_MIPSXXR2
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#elif LJ_TARGET_MIPS
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#define JIT_F_MIPSXXR2 (JIT_F_CPU << 0)
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#if LJ_TARGET_MIPS32
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#if LJ_TARGET_MIPSR6
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#define JIT_F_CPUSTRING "\010MIPS32R6"
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@@ -63,27 +65,29 @@
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#define JIT_F_CPUSTRING "\010MIPS64R2"
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#endif
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#endif
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#else
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#define JIT_F_CPU_FIRST 0
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#define JIT_F_CPUSTRING ""
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#endif
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/* Optimization flags. */
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/* Optimization flags. 12 bits. */
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#define JIT_F_OPT 0x00010000
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#define JIT_F_OPT_MASK 0x0fff0000
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#define JIT_F_OPT_FOLD 0x00010000
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#define JIT_F_OPT_CSE 0x00020000
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#define JIT_F_OPT_DCE 0x00040000
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#define JIT_F_OPT_FWD 0x00080000
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#define JIT_F_OPT_DSE 0x00100000
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#define JIT_F_OPT_NARROW 0x00200000
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#define JIT_F_OPT_LOOP 0x00400000
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#define JIT_F_OPT_ABC 0x00800000
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#define JIT_F_OPT_SINK 0x01000000
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#define JIT_F_OPT_FUSE 0x02000000
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#define JIT_F_OPT_FOLD (JIT_F_OPT << 0)
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#define JIT_F_OPT_CSE (JIT_F_OPT << 1)
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#define JIT_F_OPT_DCE (JIT_F_OPT << 2)
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#define JIT_F_OPT_FWD (JIT_F_OPT << 3)
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#define JIT_F_OPT_DSE (JIT_F_OPT << 4)
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#define JIT_F_OPT_NARROW (JIT_F_OPT << 5)
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#define JIT_F_OPT_LOOP (JIT_F_OPT << 6)
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#define JIT_F_OPT_ABC (JIT_F_OPT << 7)
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#define JIT_F_OPT_SINK (JIT_F_OPT << 8)
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#define JIT_F_OPT_FUSE (JIT_F_OPT << 9)
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/* Optimizations names for -O. Must match the order above. */
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#define JIT_F_OPT_FIRST JIT_F_OPT_FOLD
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#define JIT_F_OPTSTRING \
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"\4fold\3cse\3dce\3fwd\3dse\6narrow\4loop\3abc\4sink\4fuse"
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@@ -95,6 +99,8 @@
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JIT_F_OPT_FWD|JIT_F_OPT_DSE|JIT_F_OPT_ABC|JIT_F_OPT_SINK|JIT_F_OPT_FUSE)
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#define JIT_F_OPT_DEFAULT JIT_F_OPT_3
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/* -- JIT engine parameters ----------------------------------------------- */
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#if LJ_TARGET_WINDOWS || LJ_64
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/* See: http://blogs.msdn.com/oldnewthing/archive/2003/10/08/55239.aspx */
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#define JIT_P_sizemcode_DEFAULT 64
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@@ -137,6 +143,8 @@ JIT_PARAMDEF(JIT_PARAMENUM)
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#define JIT_PARAMSTR(len, name, value) #len #name
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#define JIT_P_STRING JIT_PARAMDEF(JIT_PARAMSTR)
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/* -- JIT engine data structures ------------------------------------------ */
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/* Trace compiler state. */
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typedef enum {
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LJ_TRACE_IDLE, /* Trace compiler idle. */
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