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re PR rtl-optimization/57439 (FAIL: gcc.c-torture/execute/920501-6.c execution, -O1)

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PR rtl-optimization/57439
        * postreload.c (move2add_use_add2_insn): Use gen_lowpart_common.

From-SVN: r199387
This commit is contained in:
Joern Rennecke 2013-05-28 18:04:41 +00:00 • committed by Joern Rennecke
parent 9daf6dbb21
commit b49eefa574
2 changed files with 6 additions and 2 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-05-28 Joern Rennecke <joern.rennecke@embecosm.com>
PR rtl-optimization/57439
* postreload.c (move2add_use_add2_insn): Use gen_lowpart_common.
2013-05-28 Easwaran Raman <eraman@google.com>
PR tree-optimization/57337

3
gcc/postreload.c
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@ -1794,8 +1794,7 @@ move2add_use_add2_insn (rtx reg, rtx sym, rtx off, rtx insn)
&& ((reg_offset[regno] & ~GET_MODE_MASK (narrow_mode))
== (INTVAL (off) & ~GET_MODE_MASK (narrow_mode))))
{
rtx narrow_reg = gen_rtx_REG (narrow_mode,
REGNO (reg));
rtx narrow_reg = gen_lowpart_common (narrow_mode, reg);
rtx narrow_src = gen_int_mode (INTVAL (off),
narrow_mode);
rtx new_set