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| author | Richard Kenner <kenner@gcc.gnu.org> | 1992-08-02 21:44:23 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1992-08-02 21:44:23 -0400 |
| commit | 600a5d8863b1800e2dbf85e62baae61d0b4178c3 (patch) | |
| tree | 70e1465f49809808aa2b16e84219bde54be78a88 | |
| parent | 0782cd717f3e48c2f3a5c84a6ad7a7bc6beef1f5 (diff) | |
| download | gcc-600a5d8863b1800e2dbf85e62baae61d0b4178c3.zip gcc-600a5d8863b1800e2dbf85e62baae61d0b4178c3.tar.gz gcc-600a5d8863b1800e2dbf85e62baae61d0b4178c3.tar.bz2 | |
(gen_rtx, case REG): Don't use frame_pointer_rtx or arg_pointer_rtx if
reload is in progress.
From-SVN: r1758
| -rw-r--r-- | gcc/emit-rtl.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index f4d898a..a540ef7 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -271,15 +271,21 @@ gen_rtx (va_alist) If we have eliminated the frame pointer or arg pointer, we will be using it as a normal register, for example as a spill register. In such cases, we might be accessing it in a mode that is not - Pmode and therefore cannot use the pre-allocated rtx. */ + Pmode and therefore cannot use the pre-allocated rtx. - if (frame_pointer_rtx && regno == FRAME_POINTER_REGNUM && mode == Pmode) + Also don't do this when we are making new REGs in reload, + since we don't want to get confused with the real pointers. */ + + if (frame_pointer_rtx && regno == FRAME_POINTER_REGNUM && mode == Pmode + && ! reload_in_progress) return frame_pointer_rtx; #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM - if (arg_pointer_rtx && regno == ARG_POINTER_REGNUM && mode == Pmode) + if (arg_pointer_rtx && regno == ARG_POINTER_REGNUM && mode == Pmode + && ! reload_in_progress) return arg_pointer_rtx; #endif - if (stack_pointer_rtx && regno == STACK_POINTER_REGNUM && mode == Pmode) + if (stack_pointer_rtx && regno == STACK_POINTER_REGNUM && mode == Pmode + && ! reload_in_progress) return stack_pointer_rtx; else { |