tcg/arm/tcg-target.c.inc

428 /* Return true if v32 is a valid 32-bit shifted immediate.  */
429 static bool is_shimm32(uint32_t v32, int *cmode, int *imm8)
431     if (v32 == (v32 & 0xff)) {
433         *imm8 = v32 & 0xff;
435     } else if (v32 == (v32 & 0xff00)) {
437         *imm8 = (v32 >> 8) & 0xff;
439     } else if (v32 == (v32 & 0xff0000)) {
441         *imm8 = (v32 >> 16) & 0xff;
443     } else if (v32 == (v32 & 0xff000000)) {
445         *imm8 = v32 >> 24;
451 /* Return true if v32 is a valid 32-bit shifting ones immediate.  */
452 static bool is_soimm32(uint32_t v32, int *cmode, int *imm8)
454     if ((v32 & 0xffff00ff) == 0xff) {
456         *imm8 = (v32 >> 8) & 0xff;
458     } else if ((v32 & 0xff00ffff) == 0xffff) {
460         *imm8 = (v32 >> 16) & 0xff;
467  * Return non-zero if v32 can be formed by MOVI+ORR.
469  * Return the cmode for ORR; the imm8 can be had via extraction from v32.
471 static int is_shimm32_pair(uint32_t v32, int *cmode, int *imm8)
477         uint32_t tmp = v32 & ~(0xffu << (i * 4));
487 static bool is_shimm1632(uint32_t v32, int *cmode, int *imm8)
489     if (v32 == deposit32(v32, 16, 16, v32)) {
490         return is_shimm16(v32, cmode, imm8);
492         return is_shimm32(v32, cmode, imm8);
2539         uint32_t v32 = v64;
2541         if (is_shimm32(v32, &cmode, &imm8) ||
2542             is_soimm32(v32, &cmode, &imm8)) {
2546         if (is_shimm32(~v32, &cmode, &imm8) ||
2547             is_soimm32(~v32, &cmode, &imm8)) {
2556         i = is_shimm32_pair(v32, &cmode, &imm8);
2559             tcg_out_vmovi(s, rd, q, 0, i | 1, extract32(v32, i * 4, 8));
2562         i = is_shimm32_pair(~v32, &cmode, &imm8);
2565             tcg_out_vmovi(s, rd, q, 1, i | 1, extract32(~v32, i * 4, 8));