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| author | Doug Evans <dje@gnu.org> | 1997-04-13 21:24:37 +0000 |
|---|---|---|
| committer | Doug Evans <dje@gnu.org> | 1997-04-13 21:24:37 +0000 |
| commit | 3e42d56b4b6fa2d03a6bd52e7135df62e12a3385 (patch) | |
| tree | e33f6ef51c6019d4ed8612e4f38439d3bc2cf6ea /gcc | |
| parent | 53c87bfd9cb9ee6dd7c44daaabdea298913f033f (diff) | |
| download | gcc-3e42d56b4b6fa2d03a6bd52e7135df62e12a3385.zip gcc-3e42d56b4b6fa2d03a6bd52e7135df62e12a3385.tar.gz gcc-3e42d56b4b6fa2d03a6bd52e7135df62e12a3385.tar.bz2 | |
integrate.c (copy_rtx_and_substitute): If FRAME_GROWS_DOWNWARD and regno == VIRTUAL_STACK_VARS_REGNUM...
* integrate.c (copy_rtx_and_substitute): If FRAME_GROWS_DOWNWARD
and regno == VIRTUAL_STACK_VARS_REGNUM, round size of stack slot up
before calling assign_stack_temp.
From-SVN: r13895
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/integrate.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/gcc/integrate.c b/gcc/integrate.c index 831a695..693304a 100644 --- a/gcc/integrate.c +++ b/gcc/integrate.c @@ -2196,18 +2196,22 @@ copy_rtx_and_substitute (orig, map) { rtx loc, seq; int size = DECL_FRAME_SIZE (map->fndecl); - int rounded; +#ifdef FRAME_GROWS_DOWNWARD + /* In this case, virtual_stack_vars_rtx points to one byte + higher than the top of the frame area. So make sure we + allocate a big enough chunk to keep the frame pointer + aligned like a real one. */ + size = CEIL_ROUND (size, BIGGEST_ALIGNMENT / BITS_PER_UNIT); +#endif start_sequence (); loc = assign_stack_temp (BLKmode, size, 1); loc = XEXP (loc, 0); #ifdef FRAME_GROWS_DOWNWARD /* In this case, virtual_stack_vars_rtx points to one byte higher than the top of the frame area. So compute the offset - to one byte higher than our substitute frame. - Keep the fake frame pointer aligned like a real one. */ - rounded = CEIL_ROUND (size, BIGGEST_ALIGNMENT / BITS_PER_UNIT); - loc = plus_constant (loc, rounded); + to one byte higher than our substitute frame. */ + loc = plus_constant (loc, size); #endif map->reg_map[regno] = temp = force_reg (Pmode, force_operand (loc, NULL_RTX)); |