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| author | Richard Stallman <rms@gnu.org> | 1993-10-20 03:43:31 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-10-20 03:43:31 +0000 |
| commit | 14aceb299be2800a56ff2800ff5a8ecd345b8e8d (patch) | |
| tree | b1b0d0642812eb6afafb6ee784cf29c7d063e2c9 | |
| parent | 4d65300e6b4b414751fa23ccc58cee2d6e39ae99 (diff) | |
| download | gcc-14aceb299be2800a56ff2800ff5a8ecd345b8e8d.zip gcc-14aceb299be2800a56ff2800ff5a8ecd345b8e8d.tar.gz gcc-14aceb299be2800a56ff2800ff5a8ecd345b8e8d.tar.bz2 | |
(assign_parms): Properly set parm_reg_stack_loc for args that are a CONCAT.
From-SVN: r5819
| -rw-r--r-- | gcc/function.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/gcc/function.c b/gcc/function.c index 60ab0d4..ed6ac06 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -3339,6 +3339,7 @@ assign_parms (fndecl, second_time) may need to do it in a wider mode. */ register rtx parmreg; + int regno; unsignedp = TREE_UNSIGNED (TREE_TYPE (parm)); if (TREE_CODE (TREE_TYPE (parm)) == INTEGER_TYPE @@ -3461,18 +3462,40 @@ assign_parms (fndecl, second_time) #endif /* FUNCTION_ARG_CALLEE_COPIES */ /* In any case, record the parm's desired stack location - in case we later discover it must live in the stack. */ - if (REGNO (parmreg) >= nparmregs) + in case we later discover it must live in the stack. + + If it is a COMPLEX value, store the stack location for both + halves. */ + + if (GET_CODE (parmreg) == CONCAT) + regno = MAX (REGNO (XEXP (parmreg, 0)), REGNO (XEXP (parmreg, 1))); + else + regno = REGNO (parmreg); + + if (regno >= nparmregs) { rtx *new; int old_nparmregs = nparmregs; - nparmregs = REGNO (parmreg) + 5; + + nparmregs = regno + 5; new = (rtx *) oballoc (nparmregs * sizeof (rtx)); bcopy (parm_reg_stack_loc, new, old_nparmregs * sizeof (rtx)); - bzero (new + old_nparmregs, (nparmregs - old_nparmregs) * sizeof (rtx)); + bzero (new + old_nparmregs, + (nparmregs - old_nparmregs) * sizeof (rtx)); parm_reg_stack_loc = new; } - parm_reg_stack_loc[REGNO (parmreg)] = stack_parm; + + if (GET_CODE (parmreg) == CONCAT) + { + enum machine_mode submode = GET_MODE (XEXP (parmreg, 0)); + + parm_reg_stack_loc[REGNO (gen_lowpart (submode, parmreg))] + = gen_lowpart (submode, stack_parm); + parm_reg_stack_loc[REGNO (gen_highpart (submode, parmreg))] + = gen_highpart (submode, stack_parm); + } + else + parm_reg_stack_loc[REGNO (parmreg)] = stack_parm; /* Mark the register as eliminable if we did no conversion and it was copied from memory at a fixed offset, |