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riscv-gcc-1
Commit b7a09135 by Richard Stallman
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*** empty log message *** 

From-SVN: r979
parent 282ea52a
Showing with 14 additions and 2 deletions
gcc/expmed.c
......@@ -972,7 +972,13 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp,
if (GET_MODE (xtarget) != maxmode)
{
if (GET_CODE (xtarget) == REG)
xspec_target_subreg = xtarget = gen_lowpart (maxmode, xtarget);
{
int wider = (GET_MODE_SIZE (maxmode)
> GET_MODE_SIZE (GET_MODE (xtarget)));
xtarget = gen_lowpart (maxmode, xtarget);
if (wider)
xspec_target_subreg = xtarget;
}
else
xtarget = gen_reg_rtx (maxmode);
}
......@@ -1098,7 +1104,13 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp,
if (GET_MODE (xtarget) != maxmode)
{
if (GET_CODE (xtarget) == REG)
xspec_target_subreg = xtarget = gen_lowpart (maxmode, xtarget);
{
int wider = (GET_MODE_SIZE (maxmode)
> GET_MODE_SIZE (GET_MODE (xtarget)));
xtarget = gen_lowpart (maxmode, xtarget);
if (wider)
xspec_target_subreg = xtarget;
}
else
xtarget = gen_reg_rtx (maxmode);
}
......
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