diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386-protos.h | 2 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 48 |
2 files changed, 25 insertions, 25 deletions
diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h index dcae34b..708834a 100644 --- a/gcc/config/i386/i386-protos.h +++ b/gcc/config/i386/i386-protos.h @@ -320,7 +320,7 @@ struct ix86_address addr_space_t seg; }; -extern int ix86_decompose_address (rtx, struct ix86_address *); +extern bool ix86_decompose_address (rtx, struct ix86_address *); extern int memory_address_length (rtx, bool); extern void x86_output_aligned_bss (FILE *, tree, const char *, unsigned HOST_WIDE_INT, unsigned); diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index d7abff0f..337ea29 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -10101,10 +10101,10 @@ ix86_live_on_entry (bitmap regs) } /* Extract the parts of an RTL expression that is a valid memory address - for an instruction. Return 0 if the structure of the address is + for an instruction. Return false if the structure of the address is grossly off. */ -int +bool ix86_decompose_address (rtx addr, struct ix86_address *out) { rtx base = NULL_RTX, index = NULL_RTX, disp = NULL_RTX; @@ -10123,17 +10123,17 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) { addr = XEXP (addr, 0); if (CONST_INT_P (addr)) - return 0; + return false; } else if (GET_CODE (addr) == AND && const_32bit_mask (XEXP (addr, 1), DImode)) { addr = lowpart_subreg (SImode, XEXP (addr, 0), DImode); if (addr == NULL_RTX) - return 0; + return false; if (CONST_INT_P (addr)) - return 0; + return false; } else if (GET_CODE (addr) == AND) { @@ -10167,7 +10167,7 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) { addr = SUBREG_REG (addr); if (CONST_INT_P (addr)) - return 0; + return false; } } @@ -10178,7 +10178,7 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) if (REG_P (SUBREG_REG (addr))) base = addr; else - return 0; + return false; } else if (GET_CODE (addr) == PLUS) { @@ -10189,13 +10189,13 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) do { if (n >= 4) - return 0; + return false; addends[n++] = XEXP (op, 1); op = XEXP (op, 0); } while (GET_CODE (op) == PLUS); if (n >= 4) - return 0; + return false; addends[n] = op; for (i = n; i >= 0; --i) @@ -10205,28 +10205,28 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) { case MULT: if (index) - return 0; + return false; index = XEXP (op, 0); scale_rtx = XEXP (op, 1); break; case ASHIFT: if (index) - return 0; + return false; index = XEXP (op, 0); tmp = XEXP (op, 1); if (!CONST_INT_P (tmp)) - return 0; + return false; scale = INTVAL (tmp); if ((unsigned HOST_WIDE_INT) scale > 3) - return 0; + return false; scale = 1 << scale; break; case ZERO_EXTEND: op = XEXP (op, 0); if (GET_CODE (op) != UNSPEC) - return 0; + return false; /* FALLTHRU */ case UNSPEC: @@ -10235,12 +10235,12 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) && seg == ADDR_SPACE_GENERIC) seg = DEFAULT_TLS_SEG_REG; else - return 0; + return false; break; case SUBREG: if (!REG_P (SUBREG_REG (op))) - return 0; + return false; /* FALLTHRU */ case REG: @@ -10249,7 +10249,7 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) else if (!index) index = op; else - return 0; + return false; break; case CONST: @@ -10257,12 +10257,12 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) case SYMBOL_REF: case LABEL_REF: if (disp) - return 0; + return false; disp = op; break; default: - return 0; + return false; } } } @@ -10277,10 +10277,10 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) index = XEXP (addr, 0); tmp = XEXP (addr, 1); if (!CONST_INT_P (tmp)) - return 0; + return false; scale = INTVAL (tmp); if ((unsigned HOST_WIDE_INT) scale > 3) - return 0; + return false; scale = 1 << scale; } else @@ -10294,14 +10294,14 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) && REG_P (SUBREG_REG (index))) ; else - return 0; + return false; } /* Extract the integral value of scale. */ if (scale_rtx) { if (!CONST_INT_P (scale_rtx)) - return 0; + return false; scale = INTVAL (scale_rtx); } @@ -10354,7 +10354,7 @@ ix86_decompose_address (rtx addr, struct ix86_address *out) out->scale = scale; out->seg = seg; - return 1; + return true; } /* Return cost of the memory address x. |