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| author | Steven Bosscher <steven@gcc.gnu.org> | 2012-10-16 22:05:17 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2012-10-16 22:05:17 +0000 |
| commit | da4fdf2d3ff45366d9378882ad1646306ceee305 (patch) | |
| tree | eafbca96b0b0771fa77620d1cff5cfc0a8a8b8be /gcc/rtlanal.c | |
| parent | f841b68397bb8b15ea570a7a86c5414f62cc9774 (diff) | |
| download | gcc-da4fdf2d3ff45366d9378882ad1646306ceee305.tar.gz | |
rtl.h (get_call_rtx_from): New prototype.
* rtl.h (get_call_rtx_from): New prototype.
* rtlanal.c (get_call_rtx_from): New function.
* calls.c (emit_call_1): Use it.
* dse.c (scan_insn): Likewise
* dwarf2out.c (dwarf2out_var_location): Likewise.
* sched-deps.c (call_may_noreturn_p): Likewise.
* var-tracking.c (prepare_call_arguments): Likewise.
* config/sh/sh.c (sh_adjust_cost): Likewise.
From-SVN: r192516
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index fb7d45cfb96..a19bdfdc0d1 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -466,6 +466,22 @@ rtx_addr_varies_p (const_rtx x, bool for_alias) return 0; } +/* Return the CALL in X if there is one. */ + +rtx +get_call_rtx_from (rtx x) +{ + if (INSN_P (x)) + x = PATTERN (x); + if (GET_CODE (x) == PARALLEL) + x = XVECEXP (x, 0, 0); + if (GET_CODE (x) == SET) + x = SET_SRC (x); + if (GET_CODE (x) == CALL && MEM_P (XEXP (x, 0))) + return x; + return NULL_RTX; +} + /* Return the value of the integer term in X, if one is apparent; otherwise return 0. Only obvious integer terms are detected. |