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fix for old go compilers

This commit is contained in:
vpachkov 2021-10-28 21:43:55 +03:00
parent 504b1876c2
commit e4ca98b4da
1 changed files with 25 additions and 11 deletions
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36
src/runtime/asm_amd64.s
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@ -95,16 +95,16 @@ GLOBL bad_proc_msg<>(SB), RODATA, $78
// Define a list of AMD64 microarchitecture level features
// https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels
// SSE3 SSSE3 CMPXCHNG16 SSE4.1 SSE4.2 POPCNT
#define V2_FEATURES_CX (1 << 0 | 1 << 9 | 1 << 13 | 1 << 19 | 1 << 20 | 1 << 23)
// LAHF/SAHF
#define V2_EXT_FEATURES_CX (1 << 0)
// FMA MOVBE OSXSAVE AVX F16C
#define V3_FEATURES_CX (V2_FEATURES_CX | 1 << 12 | 1 << 22 | 1 << 27 | 1 << 28 | 1 << 29)
// ABM (FOR LZNCT)
#define V3_EXT_FEATURES_CX (V2_EXT_FEATURES_CX | 1 << 5)
// BMI1 AVX2 BMI2
#define V3_EXT_FEATURES_BX (1 << 3 | 1 << 5 | 1 << 8)
// SSE3 SSSE3 CMPXCHNG16 SSE4.1 SSE4.2 POPCNT
#define V2_FEATURES_CX (1 << 0 | 1 << 9 | 1 << 13 | 1 << 19 | 1 << 20 | 1 << 23)
// LAHF/SAHF
#define V2_EXT_FEATURES_CX (1 << 0)
// FMA MOVBE OSXSAVE AVX F16C
#define V3_FEATURES_CX (V2_FEATURES_CX | 1 << 12 | 1 << 22 | 1 << 27 | 1 << 28 | 1 << 29)
// ABM (FOR LZNCT)
#define V3_EXT_FEATURES_CX (V2_EXT_FEATURES_CX | 1 << 5)
// BMI1 AVX2 BMI2
#define V3_EXT_FEATURES_BX (1 << 3 | 1 << 5 | 1 << 8)
// XMM YMM
#define V3_OS_SUPPORT_AX (1 << 1 | 1 << 2)
// AVX512F AVX512DQ AVX512CD AVX512BW AVX512VL
@ -147,6 +147,20 @@ GLOBL bad_proc_msg<>(SB), RODATA, $78
#endif
#endif
#ifdef GOAMD64_v1
#define SKIP_GOAMD64_CHECK
#endif
#ifndef GOAMD64_v1
#ifndef GOAMD64_v2
#ifndef GOAMD64_v3
#ifndef GOAMD64_v4
#define SKIP_GOAMD64_CHECK
#endif
#endif
#endif
#endif
TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
// copy arguments forward on an even stack
MOVQ DI, AX // argc
@ -170,7 +184,7 @@ TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
CPUID
MOVL AX, SI
CMPL AX, $0
#ifdef GOAMD64_v1
#ifdef SKIP_GOAMD64_CHECK
JE nocpuinfo
#else
JNE has_cpuinfo