diff options
| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-12-06 02:44:57 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-12-06 02:44:57 +0000 |
| commit | af6107bfff39f9f35b2d820b1541b99733623ba8 (patch) | |
| tree | 5a614ea9a6af080379f728f06077fca1b8c1d098 /gcc | |
| parent | 67accb92b02c9357c24b0811a05439ecade3e415 (diff) | |
| download | ppe42-gcc-af6107bfff39f9f35b2d820b1541b99733623ba8.tar.gz ppe42-gcc-af6107bfff39f9f35b2d820b1541b99733623ba8.zip | |
* function.c (keep_stack_depressed): Check global_live_at_start
of EXIT_BLOCK for temp register and verify it isn't in equiv_reg_src.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47706 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/function.c | 7 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d47d1db87ca..ec150de028d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Wed Dec 5 19:18:53 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * function.c (keep_stack_depressed): Check global_live_at_start + of EXIT_BLOCK for temp register and verify it isn't in equiv_reg_src. + 2001-12-05 David O'Brien <obrien@FreeBSD.org> * config.gcc (powerpc-*-freebsd*): Use the proper tmake_file files, diff --git a/gcc/function.c b/gcc/function.c index 82a71d3e327..8c26a7ede87 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -7241,7 +7241,12 @@ keep_stack_depressed (seq) if (HARD_REGNO_MODE_OK (regno, Pmode) && !fixed_regs[regno] && TEST_HARD_REG_BIT (regs_invalidated_by_call, regno) - && !FUNCTION_VALUE_REGNO_P (regno)) + && !REGNO_REG_SET_P (EXIT_BLOCK_PTR->global_live_at_start, + regno) + && !refers_to_regno_p (regno, + regno + HARD_REGNO_NREGS (regno, + Pmode), + info.equiv_reg_src, NULL)) break; if (regno == FIRST_PSEUDO_REGISTER) |
