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| author | Jeffrey A Law <law@cygnus.com> | 1999-09-16 00:38:00 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1999-09-15 18:38:00 -0600 |
| commit | dd8c13e38722b002cbc000a73ba539a7eedbc496 (patch) | |
| tree | 7e57ad98468c6001cc2b07f50d6ee76c537b3e43 /gcc | |
| parent | 5019d7a7f06217a19edf434fca2d91590dee5351 (diff) | |
| download | gcc-dd8c13e38722b002cbc000a73ba539a7eedbc496.zip gcc-dd8c13e38722b002cbc000a73ba539a7eedbc496.tar.gz gcc-dd8c13e38722b002cbc000a73ba539a7eedbc496.tar.bz2 | |
pa.c (emit_move_sequence): Properly set the mode of the scratch register when...
* pa.c (emit_move_sequence): Properly set the mode of the scratch
register when performing secondary reloads for the SAR register.
From-SVN: r29446
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/pa/pa.c | 29 |
2 files changed, 27 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a6299be..39930f9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Wed Sep 15 18:35:38 1999 Jeffrey A Law (law@cygnus.com) + + * pa.c (emit_move_sequence): Properly set the mode of the scratch + register when performing secondary reloads for the SAR register. + Wed Sep 15 15:51:52 1999 Mark Mitchell <mark@codesourcery.com> * rtl.h (NOTE_BLOCK_NUMBER): Replace with ... diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c index 40054cf..773c0c7 100644 --- a/gcc/config/pa/pa.c +++ b/gcc/config/pa/pa.c @@ -1288,16 +1288,15 @@ emit_move_sequence (operands, mode, scratch_reg) && FP_REG_CLASS_P (REGNO_REG_CLASS (REGNO (operand1))))) && scratch_reg) { - /* SCRATCH_REG will hold an address and maybe the actual data. We want - it in WORD_MODE regardless of what mode it was originally given - to us. */ - scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg)); - /* D might not fit in 14 bits either; for such cases load D into scratch reg. */ if (GET_CODE (operand1) == MEM && !memory_address_p (Pmode, XEXP (operand1, 0))) { + /* We are reloading the address into the scratch register, so we + want to make sure the scratch register is a full register. */ + scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg)); + emit_move_insn (scratch_reg, XEXP (XEXP (operand1, 0), 1)); emit_move_insn (scratch_reg, gen_rtx_fmt_ee (GET_CODE (XEXP (operand1, 0)), @@ -1305,11 +1304,27 @@ emit_move_sequence (operands, mode, scratch_reg) XEXP (XEXP (operand1, 0), 0), scratch_reg)); - emit_move_insn (scratch_reg, gen_rtx_MEM (GET_MODE (operand1), + + /* Now we are going to load the scratch register from memory, + we want to load it in the same width as the original MEM, + which must be the same as the width of the ultimate destination, + OPERAND0. */ + scratch_reg = gen_rtx_REG (GET_MODE (operand0), REGNO (scratch_reg)); + + emit_move_insn (scratch_reg, gen_rtx_MEM (GET_MODE (operand0), scratch_reg)); } else - emit_move_insn (scratch_reg, operand1); + { + /* We want to load the scratch register using the same mode as + the ultimate destination. */ + scratch_reg = gen_rtx_REG (GET_MODE (operand0), REGNO (scratch_reg)); + emit_move_insn (scratch_reg, operand1); + } + + /* And emit the insn to set the ultimate destination. We know that + the scratch register has the same mode as the destination at this + point. */ emit_move_insn (operand0, scratch_reg); return 1; } |