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Diffstat (limited to 'tcg/i386/tcg-target.h')
-rw-r--r--tcg/i386/tcg-target.h28
1 files changed, 18 insertions, 10 deletions
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 0b5a2c68c5..0106946996 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -25,6 +25,8 @@
 #ifndef I386_TCG_TARGET_H
 #define I386_TCG_TARGET_H
 
+#include "host/cpuinfo.h"
+
 #define TCG_TARGET_INSN_UNIT_SIZE  1
 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 31
 
@@ -111,16 +113,22 @@ typedef enum {
 # define TCG_TARGET_CALL_RET_I128    TCG_CALL_RET_BY_REF
 #endif
 
-extern bool have_bmi1;
-extern bool have_popcnt;
-extern bool have_avx1;
-extern bool have_avx2;
-extern bool have_avx512bw;
-extern bool have_avx512dq;
-extern bool have_avx512vbmi2;
-extern bool have_avx512vl;
-extern bool have_movbe;
-extern bool have_atomic16;
+#define have_bmi1         (cpuinfo & CPUINFO_BMI1)
+#define have_popcnt       (cpuinfo & CPUINFO_POPCNT)
+#define have_avx1         (cpuinfo & CPUINFO_AVX1)
+#define have_avx2         (cpuinfo & CPUINFO_AVX2)
+#define have_movbe        (cpuinfo & CPUINFO_MOVBE)
+#define have_atomic16     (cpuinfo & CPUINFO_ATOMIC_VMOVDQA)
+
+/*
+ * There are interesting instructions in AVX512, so long as we have AVX512VL,
+ * which indicates support for EVEX on sizes smaller than 512 bits.
+ */
+#define have_avx512vl     ((cpuinfo & CPUINFO_AVX512VL) && \
+                           (cpuinfo & CPUINFO_AVX512F))
+#define have_avx512bw     ((cpuinfo & CPUINFO_AVX512BW) && have_avx512vl)
+#define have_avx512dq     ((cpuinfo & CPUINFO_AVX512DQ) && have_avx512vl)
+#define have_avx512vbmi2  ((cpuinfo & CPUINFO_AVX512VBMI2) && have_avx512vl)
 
 /* optional instructions */
 #define TCG_TARGET_HAS_div2_i32         1