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| author | David Edelsohn <edelsohn@gnu.org> | 2005-01-07 15:30:13 +0000 |
|---|---|---|
| committer | David Edelsohn <dje@gcc.gnu.org> | 2005-01-07 10:30:13 -0500 |
| commit | 4937d02db27fb2d43e4000bd215d6c16c8a940b5 (patch) | |
| tree | 0d6d15a81fb365fc594bd019a1e0bf8e60568731 /gcc | |
| parent | db39699900a7c8aebe8bb0e29d22786234af7bcf (diff) | |
| download | gcc-4937d02db27fb2d43e4000bd215d6c16c8a940b5.zip gcc-4937d02db27fb2d43e4000bd215d6c16c8a940b5.tar.gz gcc-4937d02db27fb2d43e4000bd215d6c16c8a940b5.tar.bz2 | |
re PR rtl-optimization/13674 (ICE in reload_cse_simplify_operands, at postreload.c:378 on PPC64)
PR target/13674
* config/rs6000/rs6000.c (rs6000_legitimize_reload_address):
Convert non-word aligned offset address using ld/std into
indirect address.
From-SVN: r93052
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 22 |
2 files changed, 29 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0f08d7e..aa0bbff 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2005-01-07 David Edelsohn <edelsohn@gnu.org> + + PR target/13674 + * config/rs6000/rs6000.c (rs6000_legitimize_reload_address): + Convert non-word aligned offset address using ld/std into + indirect address. + 2005-01-07 Richard Henderson <rth@redhat.com> * config/i386/i386.md (sse_loadhps splitter): Fix operand number typo. diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index bf340dc..baf4a8e 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -3809,6 +3809,26 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode, return x; } #endif + + /* Force ld/std non-word aligned offset into base register by wrapping + in offset 0. */ + if (GET_CODE (x) == PLUS + && GET_CODE (XEXP (x, 0)) == REG + && REGNO (XEXP (x, 0)) < 32 + && REG_MODE_OK_FOR_BASE_P (XEXP (x, 0), mode) + && GET_CODE (XEXP (x, 1)) == CONST_INT + && (INTVAL (XEXP (x, 1)) & 3) != 0 + && GET_MODE_SIZE (mode) >= UNITS_PER_WORD + && TARGET_POWERPC64) + { + x = gen_rtx_PLUS (GET_MODE (x), x, GEN_INT (0)); + push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL, + BASE_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0, + opnum, (enum reload_type) type); + *win = 1; + return x; + } + if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && REGNO (XEXP (x, 0)) < FIRST_PSEUDO_REGISTER @@ -3844,6 +3864,7 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode, *win = 1; return x; } + #if TARGET_MACHO if (GET_CODE (x) == SYMBOL_REF && DEFAULT_ABI == ABI_DARWIN @@ -3874,6 +3895,7 @@ rs6000_legitimize_reload_address (rtx x, enum machine_mode mode, return x; } #endif + if (TARGET_TOC && constant_pool_expr_p (x) && ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (get_pool_constant (x), mode)) |