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| author | Jeff Law <law@gcc.gnu.org> | 2014-06-13 10:40:48 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2014-06-13 10:40:48 -0600 |
| commit | c7ece684cada075bf1d46669794217ccd4bf8b3d (patch) | |
| tree | d09156de34041a750c751b23d0bbc0f8a19489ec /gcc | |
| parent | 8e96d784335afc41a647ccd108dbdc7961b06da9 (diff) | |
| download | gcc-c7ece684cada075bf1d46669794217ccd4bf8b3d.zip gcc-c7ece684cada075bf1d46669794217ccd4bf8b3d.tar.gz gcc-c7ece684cada075bf1d46669794217ccd4bf8b3d.tar.bz2 | |
[multiple changes]
2014-06-13 Jeff Law <law@redhat.com>
PR rtl-optimization/61094
PR rtl-optimization/61446
* ree.c (combine_reaching_defs): Get the mode for the copy from
the extension insn rather than the defining insn.
2014-06-13 Ilya Enkovich <ilya.enkovich@intel.com>
PR rtl-optimization/61094
PR rtl-optimization/61446
* gcc.target/i386/pr61446.c : New.
From-SVN: r211649
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/ree.c | 11 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr61446.c | 14 |
4 files changed, 34 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1999831..5454423 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2014-06-13 Jeff Law <law@redhat.com> + + PR rtl-optimization/61094 + PR rtl-optimization/61446 + * ree.c (combine_reaching_defs): Get the mode for the copy from + the extension insn rather than the defining insn. + 2014-06-13 Dehao Chen <dehao@google.com> * dwarf2out.c (add_linkage_name): Emit more linkage name. @@ -787,13 +787,16 @@ combine_reaching_defs (ext_cand *cand, const_rtx set_pat, ext_state *state) generated more than one insn. This generates garbage since we throw away the insn when we're - done, only to recreate it later if this test was successful. */ + done, only to recreate it later if this test was successful. + + Make sure to get the mode from the extension (cand->insn). This + is different than in the code to emit the copy as we have not + modified the defining insn yet. */ start_sequence (); - rtx sub_rtx = *get_sub_rtx (def_insn); rtx pat = PATTERN (cand->insn); - rtx new_dst = gen_rtx_REG (GET_MODE (SET_DEST (sub_rtx)), + rtx new_dst = gen_rtx_REG (GET_MODE (SET_DEST (pat)), REGNO (XEXP (SET_SRC (pat), 0))); - rtx new_src = gen_rtx_REG (GET_MODE (SET_DEST (sub_rtx)), + rtx new_src = gen_rtx_REG (GET_MODE (SET_DEST (pat)), REGNO (SET_DEST (pat))); emit_move_insn (new_dst, new_src); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 262c682..1b63a2d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2014-06-13 Ilya Enkovich <ilya.enkovich@intel.com> + + PR rtl-optimization/61094 + PR rtl-optimization/61446 + * gcc.target/i386/pr61446.c : New. + 2014-06-13 Dehao Chen <dehao@google.com> * g++.dg/debug/dwarf2/cdtor-1.C: Update test result. diff --git a/gcc/testsuite/gcc.target/i386/pr61446.c b/gcc/testsuite/gcc.target/i386/pr61446.c new file mode 100644 index 0000000..fc32f63 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr61446.c @@ -0,0 +1,14 @@ +/* PR rtl-optimization/61446 */ + +/* { dg-do compile { target { ia32 } } } */ +/* { dg-options "-O2 -march=corei7 -mfpmath=387" } */ + +unsigned long long +foo (float a) +{ + const double dfa = a; + const unsigned int hi = dfa / 0x1p32f; + const unsigned int lo = dfa - (double) hi * 0x1p32f; + + return ((unsigned long long) hi << (4 * (8))) | lo; +} |