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i386: Tweak ix86_mode_can_transfer_bits to restore bootstrap on RHEL.

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This minor patch, very similar to one posted and approved previously at
https://gcc.gnu.org/pipermail/gcc-patches/2024-July/657229.html is
required to restore builds on systems using gcc 4.8 as a host compiler.
Using the enumeration constants E_SFmode and E_DFmode avoids issues with
SFmode and DFmode being "non-literal types in constant expressions".

2024-08-08  Roger Sayle  <roger@nextmovesoftware.com>

gcc/ChangeLog
	* config/i386/i386.cc (ix86_mode_can_transfer_bits): Use E_?Fmode
	enumeration constants in switch statement.
This commit is contained in:
Roger Sayle 2024-08-08 11:16:29 +01:00
parent afa3a4a52c
commit 4d44f3fc38
1 changed files with 2 additions and 2 deletions
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4
gcc/config/i386/i386.cc
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@ -26113,8 +26113,8 @@ ix86_mode_can_transfer_bits (machine_mode mode)
|| GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT)
switch (GET_MODE_INNER (mode))
{
case SFmode:
case DFmode:
case E_SFmode:
case E_DFmode:
/* These suffer from normalization upon load when not using SSE. */
return !(ix86_fpmath & FPMATH_387);
default: