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| author | Kugan Vivekanandarajah <kuganv@linaro.org> | 2015-07-24 01:38:19 +0000 |
|---|---|---|
| committer | Kugan Vivekanandarajah <kugan@gcc.gnu.org> | 2015-07-24 01:38:19 +0000 |
| commit | fa24123b0fbb8baeca2deb7c79b62c58f5c1fe23 (patch) | |
| tree | 8ab460a664f3a41e25cc0d2663e7634a41029e57 /gcc/cse.c | |
| parent | 46e82d43f1868a4dfcc3795bedd2f9e7c1814ad0 (diff) | |
| download | gcc-fa24123b0fbb8baeca2deb7c79b62c58f5c1fe23.zip gcc-fa24123b0fbb8baeca2deb7c79b62c58f5c1fe23.tar.gz gcc-fa24123b0fbb8baeca2deb7c79b62c58f5c1fe23.tar.bz2 | |
cse.c (cse_insn): Fix missing check for STRICT_LOW_PART and minor clean up.
gcc/ChangeLog:
2015-07-23 Kugan Vivekanandarajah <kuganv@linaro.org>
* cse.c (cse_insn): Fix missing check for STRICT_LOW_PART and minor
clean up.
From-SVN: r226134
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 10 |
1 files changed, 5 insertions, 5 deletions
@@ -4529,10 +4529,10 @@ cse_insn (rtx_insn *insn) this case, and if it isn't set, then there will be no equivalence for the destination. */ if (n_sets == 1 && REG_NOTES (insn) != 0 - && (tem = find_reg_note (insn, REG_EQUAL, NULL_RTX)) != 0) + && (tem = find_reg_note (insn, REG_EQUAL, NULL_RTX)) != 0 + && (! rtx_equal_p (XEXP (tem, 0), SET_SRC (sets[0].rtl)))) { - if ((! rtx_equal_p (XEXP (tem, 0), SET_SRC (sets[0].rtl))) - || GET_CODE (SET_DEST (sets[0].rtl)) == STRICT_LOW_PART) + if (GET_CODE (SET_DEST (sets[0].rtl)) == STRICT_LOW_PART) src_eqv = copy_rtx (XEXP (tem, 0)); /* If DEST is of the form ZERO_EXTACT, as in: @@ -4544,14 +4544,14 @@ cse_insn (rtx_insn *insn) point. Note that this is different from SRC_EQV. We can however calculate SRC_EQV with the position and width of ZERO_EXTRACT. */ else if (GET_CODE (SET_DEST (sets[0].rtl)) == ZERO_EXTRACT - && CONST_INT_P (src_eqv) + && CONST_INT_P (XEXP (tem, 0)) && CONST_INT_P (XEXP (SET_DEST (sets[0].rtl), 1)) && CONST_INT_P (XEXP (SET_DEST (sets[0].rtl), 2))) { rtx dest_reg = XEXP (SET_DEST (sets[0].rtl), 0); rtx width = XEXP (SET_DEST (sets[0].rtl), 1); rtx pos = XEXP (SET_DEST (sets[0].rtl), 2); - HOST_WIDE_INT val = INTVAL (src_eqv); + HOST_WIDE_INT val = INTVAL (XEXP (tem, 0)); HOST_WIDE_INT mask; unsigned int shift; if (BITS_BIG_ENDIAN) |