typedef struct _arm_isa_t arm_isa_t;
+/** The following bitmasks control CPU extensions: */
+enum arm_cpu_extensions {
+ ARM_EXT_V1 = 0x00000001, /**< All processors (core set). */
+ ARM_EXT_V2 = 0x00000002, /**< Multiply instructions. */
+ ARM_EXT_V2S = 0x00000004, /**< SWP instructions. */
+ ARM_EXT_V3 = 0x00000008, /**< MSR MRS. */
+ ARM_EXT_V3M = 0x00000010, /**< Allow long multiplies. */
+ ARM_EXT_V4 = 0x00000020, /**< Allow half word loads. */
+ ARM_EXT_V4T = 0x00000040, /**< Thumb v1. */
+ ARM_EXT_V5 = 0x00000080, /**< Allow CLZ, etc. */
+ ARM_EXT_V5T = 0x00000100, /**< Thumb v2.ยด*/
+ ARM_EXT_V5ExP = 0x00000200, /**< DSP core set. */
+ ARM_EXT_V5E = 0x00000400, /**< DSP Double transfers. */
+ ARM_EXT_V5J = 0x00000800, /**< Jazelle extension. */
+
+ /* Co-processor space extensions. */
+ ARM_CEXT_XSCALE = 0x00800000, /**< Allow MIA etc. */
+ ARM_CEXT_MAVERICK = 0x00400000, /**< Use Cirrus/DSP coprocessor. */
+ ARM_CEXT_IWMMXT = 0x00200000, /**< Intel Wireless MMX technology coprocessor. */
+};
+
+/**
+ * Architectures are the sum of the base and extensions. The ARM ARM (rev E)
+ * defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
+ * ARMv5xM, ARMv5, ARMv5TxM, ARMv5T, ARMv5TExP, ARMv5TE. To these we add
+ * three more to cover cores prior to ARM6. Finally, there are cores which
+ * implement further extensions in the co-processor space.
+ */
+enum arm_architectiures {
+ ARM_ARCH_V1 = ARM_EXT_V1,
+ ARM_ARCH_V2 = ARM_ARCH_V1 | ARM_EXT_V2,
+ ARM_ARCH_V2S = ARM_ARCH_V2 | ARM_EXT_V2S,
+ ARM_ARCH_V3 = ARM_ARCH_V2S | ARM_EXT_V3,
+ ARM_ARCH_V3M = ARM_ARCH_V3 | ARM_EXT_V3M,
+ ARM_ARCH_V4xM = ARM_ARCH_V3 | ARM_EXT_V4,
+ ARM_ARCH_V4 = ARM_ARCH_V3M | ARM_EXT_V4,
+ ARM_ARCH_V4TxM = ARM_ARCH_V4xM | ARM_EXT_V4T,
+ ARM_ARCH_V4T = ARM_ARCH_V4 | ARM_EXT_V4T,
+ ARM_ARCH_V5xM = ARM_ARCH_V4xM| ARM_EXT_V5,
+ ARM_ARCH_V5 = ARM_ARCH_V4 | ARM_EXT_V5,
+ ARM_ARCH_V5TxM = ARM_ARCH_V5xM | ARM_EXT_V4T | ARM_EXT_V5T,
+ ARM_ARCH_V5T = ARM_ARCH_V5 | ARM_EXT_V4T | ARM_EXT_V5T,
+ ARM_ARCH_V5TExP = ARM_ARCH_V5T | ARM_EXT_V5ExP,
+ ARM_ARCH_V5TE = ARM_ARCH_V5TExP | ARM_EXT_V5E,
+ ARM_ARCH_V5TEJ = ARM_ARCH_V5TE | ARM_EXT_V5J,
+
+ /* Processors with specific extensions in the co-processor space. */
+ ARM_ARCH_XSCALE = ARM_ARCH_V5TE | ARM_CEXT_XSCALE,
+ ARM_ARCH_IWMMXT = ARM_ARCH_XSCALE | ARM_CEXT_IWMMXT,
+
+ ARM_ARCH_MASK = 0x00ffffff,
+};
+
+/** Floating point instruction set. */
+enum arm_fp_architectures {
+ ARM_FPU_FPA_EXT_V1 = 0x80000000, /**< Base FPA instruction set. */
+ ARM_FPU_FPA_EXT_V2 = 0x40000000, /**< LFM/SFM. */
+ ARM_FPU_VFP_EXT_NONE = 0x20000000, /**< Use VFP word-ordering. */
+ ARM_FPU_VFP_EXT_V1xD = 0x10000000, /**< Base VFP instruction set. */
+ ARM_FPU_VFP_EXT_V1 = 0x08000000, /**< Double-precision insns. */
+ ARM_FPU_VFP_EXT_V2 = 0x04000000, /**< ARM10E VFPr1. */
+
+ ARM_FPU_SOFTFLOAT = 0x01000000, /**< soft float library */
+ ARM_FPU_NONE = 0,
+
+ ARM_FPU_ARCH_FPE = ARM_FPU_FPA_EXT_V1,
+ ARM_FPU_ARCH_FPA = ARM_FPU_ARCH_FPE | ARM_FPU_FPA_EXT_V2,
+
+ ARM_FPU_ARCH_VFP = ARM_FPU_VFP_EXT_NONE,
+ ARM_FPU_ARCH_VFP_V1xD = ARM_FPU_VFP_EXT_V1xD | ARM_FPU_VFP_EXT_NONE,
+ ARM_FPU_ARCH_VFP_V1 = ARM_FPU_ARCH_VFP_V1xD | ARM_FPU_VFP_EXT_V1,
+ ARM_FPU_ARCH_VFP_V2 = ARM_FPU_ARCH_VFP_V1 | ARM_FPU_VFP_EXT_V2,
+
+ ARM_FPU_ARCH_SOFTFLOAT = ARM_FPU_SOFTFLOAT,
+
+ ARM_FPU_MASK = 0xff000000,
+};
+
+/** Returns non-zero if FPA instructions should be issued. */
+#define USE_FPA(cg) ((cg)->fpu_arch & ARM_FPU_FPA_EXT_V1)
+
+/** Returns non-zero if VFP instructions should be issued. */
+#define USE_VFP(cg) ((cg)->fpu_arch & ARM_FPU_VFP_EXT_V1xD)
+
+/** Types of processor to generate code for. */
+enum arm_processor_types {
+ ARM_1 = ARM_ARCH_V1,
+ ARM_2 = ARM_ARCH_V2,
+ ARM_3 = ARM_ARCH_V2S,
+ ARM_250 = ARM_ARCH_V2S,
+ ARM_6 = ARM_ARCH_V3,
+ ARM_7 = ARM_ARCH_V3,
+ ARM_8 = ARM_ARCH_V4,
+ ARM_9 = ARM_ARCH_V4T,
+ ARM_STRONG = ARM_ARCH_V4,
+};
+
typedef struct _arm_code_gen_t {
const arch_code_generator_if_t *impl; /**< implementation */
ir_graph *irg; /**< current irg */
int gen_reg_names; /**< use generic register names instead of SP, LR, PC */
arm_code_gen_t *cg; /**< current code generator */
FILE *out; /**< output file */
+
+ unsigned fpu_arch; /**< FPU architecture */
};
projects / libfirm / blobdiff