diff options
| author | matz <matz@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-03-19 12:37:28 +0000 |
|---|---|---|
| committer | matz <matz@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-03-19 12:37:28 +0000 |
| commit | 4e2a2fb45c465c9e0d6e0b010dde4e0678bf915f (patch) | |
| tree | 750b7bfe08e957981b58a98957f22c84fb66776e /gcc/builtins.c | |
| parent | 3ec419bfa38623ba4d1e56f82ec2e78d7c53ac93 (diff) | |
| download | gcc-4e2a2fb45c465c9e0d6e0b010dde4e0678bf915f.tar.gz | |
PR 43305
* builtins.c (expand_builtin_interclass_mathfn,
expand_builtin_signbit): Use maybe_emit_unop_insn, emit libcalls
if that fails.
testsuite/
* gcc.dg/pr43305.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@157567 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 705a25598b0..a68e743b616 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -2312,6 +2312,8 @@ expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget) if (icode != CODE_FOR_nothing) { + rtx last = get_last_insn (); + tree orig_arg = arg; /* Make a suitable register to place result in. */ if (!target || GET_MODE (target) != TYPE_MODE (TREE_TYPE (exp))) @@ -2332,8 +2334,10 @@ expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget) /* Compute into TARGET. Set TARGET to wherever the result comes back. */ - emit_unop_insn (icode, target, op0, UNKNOWN); - return target; + if (maybe_emit_unop_insn (icode, target, op0, UNKNOWN)) + return target; + delete_insns_since (last); + CALL_EXPR_ARG (exp, 0) = orig_arg; } return NULL_RTX; @@ -5197,9 +5201,11 @@ expand_builtin_signbit (tree exp, rtx target) icode = signbit_optab->handlers [(int) fmode].insn_code; if (icode != CODE_FOR_nothing) { + rtx last = get_last_insn (); target = gen_reg_rtx (TYPE_MODE (TREE_TYPE (exp))); - emit_unop_insn (icode, target, temp, UNKNOWN); - return target; + if (maybe_emit_unop_insn (icode, target, temp, UNKNOWN)) + return target; + delete_insns_since (last); } /* For floating point formats without a sign bit, implement signbit |