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| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2001-12-06 02:44:57 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 2001-12-05 21:44:57 -0500 |
| commit | b5ed05aac936bf0f5196aeb9bb6995d724b00119 (patch) | |
| tree | 5a614ea9a6af080379f728f06077fca1b8c1d098 /gcc/function.c | |
| parent | f3465a44453eb234979d5ee462a2a7f38401e2d0 (diff) | |
| download | gcc-b5ed05aac936bf0f5196aeb9bb6995d724b00119.zip gcc-b5ed05aac936bf0f5196aeb9bb6995d724b00119.tar.gz gcc-b5ed05aac936bf0f5196aeb9bb6995d724b00119.tar.bz2 | |
function.c (keep_stack_depressed): Check global_live_at_start of EXIT_BLOCK for temp register and verify it isn't...
* 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.
From-SVN: r47706
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/function.c b/gcc/function.c index 82a71d3..8c26a7e 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) |