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| author | Bernd Schmidt <bernds@cygnus.co.uk> | 1999-11-12 13:38:38 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@gcc.gnu.org> | 1999-11-12 13:38:38 +0000 |
| commit | 15052bd18c2bd63e82aa3d62ae746711226cfb4f (patch) | |
| tree | 6d8b8fea1adac4f57fec99469b26af073b141c5a /gcc | |
| parent | e428d7383b6b19ec2f5a2d445007fda6dbc0da8e (diff) | |
| download | gcc-15052bd18c2bd63e82aa3d62ae746711226cfb4f.zip gcc-15052bd18c2bd63e82aa3d62ae746711226cfb4f.tar.gz gcc-15052bd18c2bd63e82aa3d62ae746711226cfb4f.tar.bz2 | |
Treat QImode addresses the same way GO_IF_LEGITIMATE_INDEX does.
From-SVN: r30500
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/arm/arm.h | 92 |
2 files changed, 51 insertions, 46 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3cb4bb7..faf8e24 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Fri Nov 12 13:31:54 1999 Bernd Schmidt <bernds@cygnus.co.uk> + + * config/arm/arm.h (LEGITIMIZE_RELOAD_ADDRESS): Treat QImode + addresses the same way GO_IF_LEGITIMATE_INDEX does. + Fri Nov 12 12:36:04 1999 Bernd Schmidt <bernds@cygnus.co.uk> * cse.c (hash_arg_in_struct): Delete. diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h index a7ecbb5..14e5293 100644 --- a/gcc/config/arm/arm.h +++ b/gcc/config/arm/arm.h @@ -1015,52 +1015,52 @@ enum reg_class For the ARM, we wish to handle large displacements off a base register by splitting the addend across a MOV and the mem insn. This can cut the number of reloads needed. */ -#define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, IND_LEVELS, WIN) \ - do \ - { \ - if (GET_CODE (X) == PLUS \ - && GET_CODE (XEXP (X, 0)) == REG \ - && REGNO (XEXP (X, 0)) < FIRST_PSEUDO_REGISTER \ - && REG_MODE_OK_FOR_BASE_P (XEXP (X, 0), MODE) \ - && GET_CODE (XEXP (X, 1)) == CONST_INT) \ - { \ - HOST_WIDE_INT val = INTVAL (XEXP (X, 1)); \ - HOST_WIDE_INT low, high; \ - \ - if (MODE == DImode || (TARGET_SOFT_FLOAT && MODE == DFmode)) \ - low = ((val & 0xf) ^ 0x8) - 0x8; \ - else if (MODE == SImode || MODE == QImode \ - || (MODE == SFmode && TARGET_SOFT_FLOAT) \ - || (MODE == HImode && ! arm_arch4)) \ - /* Need to be careful, -4096 is not a valid offset */ \ - low = val >= 0 ? (val & 0xfff) : -((-val) & 0xfff); \ - else if (MODE == HImode && arm_arch4) \ - /* Need to be careful, -256 is not a valid offset */ \ - low = val >= 0 ? (val & 0xff) : -((-val) & 0xff); \ - else if (GET_MODE_CLASS (MODE) == MODE_FLOAT \ - && TARGET_HARD_FLOAT) \ - /* Need to be careful, -1024 is not a valid offset */ \ - low = val >= 0 ? (val & 0x3ff) : -((-val) & 0x3ff); \ - else \ - break; \ - \ - high = ((((val - low) & 0xffffffff) ^ 0x80000000) - 0x80000000); \ - /* Check for overflow or zero */ \ - if (low == 0 || high == 0 || (high + low != val)) \ - break; \ - \ - /* Reload the high part into a base reg; leave the low part \ - in the mem. */ \ - X = gen_rtx_PLUS (GET_MODE (X), \ - gen_rtx_PLUS (GET_MODE (X), XEXP (X, 0), \ - GEN_INT (high)), \ - GEN_INT (low)); \ - push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL_PTR, \ - BASE_REG_CLASS, GET_MODE (X), VOIDmode, 0, 0, \ - OPNUM, TYPE); \ - goto WIN; \ - } \ - } \ +#define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, IND_LEVELS, WIN) \ + do \ + { \ + if (GET_CODE (X) == PLUS \ + && GET_CODE (XEXP (X, 0)) == REG \ + && REGNO (XEXP (X, 0)) < FIRST_PSEUDO_REGISTER \ + && REG_MODE_OK_FOR_BASE_P (XEXP (X, 0), MODE) \ + && GET_CODE (XEXP (X, 1)) == CONST_INT) \ + { \ + HOST_WIDE_INT val = INTVAL (XEXP (X, 1)); \ + HOST_WIDE_INT low, high; \ + \ + if (MODE == DImode || (TARGET_SOFT_FLOAT && MODE == DFmode)) \ + low = ((val & 0xf) ^ 0x8) - 0x8; \ + else if (MODE == SImode \ + || (MODE == SFmode && TARGET_SOFT_FLOAT) \ + || ((MODE == HImode || MODE == QImode) && ! arm_arch4)) \ + /* Need to be careful, -4096 is not a valid offset */ \ + low = val >= 0 ? (val & 0xfff) : -((-val) & 0xfff); \ + else if ((MODE == HImode || MODE == QImode) && arm_arch4) \ + /* Need to be careful, -256 is not a valid offset */ \ + low = val >= 0 ? (val & 0xff) : -((-val) & 0xff); \ + else if (GET_MODE_CLASS (MODE) == MODE_FLOAT \ + && TARGET_HARD_FLOAT) \ + /* Need to be careful, -1024 is not a valid offset */ \ + low = val >= 0 ? (val & 0x3ff) : -((-val) & 0x3ff); \ + else \ + break; \ + \ + high = ((((val - low) & 0xffffffff) ^ 0x80000000) - 0x80000000); \ + /* Check for overflow or zero */ \ + if (low == 0 || high == 0 || (high + low != val)) \ + break; \ + \ + /* Reload the high part into a base reg; leave the low part \ + in the mem. */ \ + X = gen_rtx_PLUS (GET_MODE (X), \ + gen_rtx_PLUS (GET_MODE (X), XEXP (X, 0), \ + GEN_INT (high)), \ + GEN_INT (low)); \ + push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL_PTR, \ + BASE_REG_CLASS, GET_MODE (X), VOIDmode, 0, 0, \ + OPNUM, TYPE); \ + goto WIN; \ + } \ + } \ while (0) /* Return the maximum number of consecutive registers |