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| author | Tom de Vries <tom@codesourcery.com> | 2014-06-20 08:01:41 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2014-06-20 08:01:41 +0000 |
| commit | 53f2f6c1c4a55c6d700a2eb3ceaf465f7ccd81be (patch) | |
| tree | d3b889b391e7318b93597464ae692d15719f2a1a /gcc/final.c | |
| parent | 569b1784fe1523adf8cbe899834a7cb7f7600bfb (diff) | |
| download | gcc-53f2f6c1c4a55c6d700a2eb3ceaf465f7ccd81be.zip gcc-53f2f6c1c4a55c6d700a2eb3ceaf465f7ccd81be.tar.gz gcc-53f2f6c1c4a55c6d700a2eb3ceaf465f7ccd81be.tar.bz2 | |
Use function_used_regs variable in collect_fn_hard_reg_usage
2014-06-20 Tom de Vries <tom@codesourcery.com>
* final.c (collect_fn_hard_reg_usage): Add and use variable
function_used_regs.
From-SVN: r211839
Diffstat (limited to 'gcc/final.c')
| -rw-r--r-- | gcc/final.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/gcc/final.c b/gcc/final.c index 4f08073..e39930d 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -4760,13 +4760,13 @@ collect_fn_hard_reg_usage (void) int i; #endif struct cgraph_rtl_info *node; + HARD_REG_SET function_used_regs; /* ??? To be removed when all the ports have been fixed. */ if (!targetm.call_fusage_contains_non_callee_clobbers) return; - node = cgraph_rtl_info (current_function_decl); - gcc_assert (node != NULL); + CLEAR_HARD_REG_SET (function_used_regs); for (insn = get_insns (); insn != NULL_RTX; insn = next_insn (insn)) { @@ -4779,25 +4779,26 @@ collect_fn_hard_reg_usage (void) if (CALL_P (insn) && !get_call_reg_set_usage (insn, &insn_used_regs, call_used_reg_set)) - { - CLEAR_HARD_REG_SET (node->function_used_regs); - return; - } + return; - IOR_HARD_REG_SET (node->function_used_regs, insn_used_regs); + IOR_HARD_REG_SET (function_used_regs, insn_used_regs); } /* Be conservative - mark fixed and global registers as used. */ - IOR_HARD_REG_SET (node->function_used_regs, fixed_reg_set); + IOR_HARD_REG_SET (function_used_regs, fixed_reg_set); #ifdef STACK_REGS /* Handle STACK_REGS conservatively, since the df-framework does not provide accurate information for them. */ for (i = FIRST_STACK_REG; i <= LAST_STACK_REG; i++) - SET_HARD_REG_BIT (node->function_used_regs, i); + SET_HARD_REG_BIT (function_used_regs, i); #endif + node = cgraph_rtl_info (current_function_decl); + gcc_assert (node != NULL); + + COPY_HARD_REG_SET (node->function_used_regs, function_used_regs); node->function_used_regs_valid = 1; } |