https://gcc.gnu.org/g:74e6dfb23163c2dd670d1d60fbf4c782e0b44b94
commit r15-2027-g74e6dfb23163c2dd670d1d60fbf4c782e0b44b94
Author: Roger Sayle <ro...@nextmovesoftware.com>
Date: Sun Jul 14 17:22:27 2024 +0100
i386: Tweak i386-expand.cc to restore bootstrap on RHEL.
This is a minor change to restore bootstrap on systems using gcc 4.8
as a host compiler. The fatal error is:
In file included from gcc/gcc/coretypes.h:471:0,
from gcc/gcc/config/i386/i386-expand.cc:23:
gcc/gcc/config/i386/i386-expand.cc: In function 'void
ix86_expand_fp_absneg_operator(rtx_code, machine_mode, rtx_def**)':
./insn-modes.h:315:75: error: temporary of non-literal type
'scalar_float_mode' in a constant expression
#define HFmode (scalar_float_mode ((scalar_float_mode::from_int) E_HFmode))
^
gcc/gcc/config/i386/i386-expand.cc:2179:8: note: in expansion of macro
'HFmode'
case HFmode:
^
The solution is to use the E_?Fmode enumeration constants as case values
in switch statements.
2024-07-14 Roger Sayle <ro...@nextmovesoftware.com>
* config/i386/i386-expand.cc (ix86_expand_fp_absneg_operator):
Use E_?Fmode enumeration constants in switch statement.
(ix86_expand_copysign): Likewise.
(ix86_expand_xorsign): Likewise.
Diff:
---
gcc/config/i386/i386-expand.cc | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
index cfcfdd94e8f0..9a31e6df2aa2 100644
--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
@@ -2176,19 +2176,19 @@ ix86_expand_fp_absneg_operator (enum rtx_code code,
machine_mode mode,
switch (mode)
{
- case HFmode:
+ case E_HFmode:
use_sse = true;
vmode = V8HFmode;
break;
- case BFmode:
+ case E_BFmode:
use_sse = true;
vmode = V8BFmode;
break;
- case SFmode:
+ case E_SFmode:
use_sse = TARGET_SSE_MATH && TARGET_SSE;
vmode = V4SFmode;
break;
- case DFmode:
+ case E_DFmode:
use_sse = TARGET_SSE_MATH && TARGET_SSE2;
vmode = V2DFmode;
break;
@@ -2330,19 +2330,19 @@ ix86_expand_copysign (rtx operands[])
switch (mode)
{
- case HFmode:
+ case E_HFmode:
vmode = V8HFmode;
break;
- case BFmode:
+ case E_BFmode:
vmode = V8BFmode;
break;
- case SFmode:
+ case E_SFmode:
vmode = V4SFmode;
break;
- case DFmode:
+ case E_DFmode:
vmode = V2DFmode;
break;
- case TFmode:
+ case E_TFmode:
vmode = mode;
break;
default:
@@ -2410,16 +2410,16 @@ ix86_expand_xorsign (rtx operands[])
switch (mode)
{
- case HFmode:
+ case E_HFmode:
vmode = V8HFmode;
break;
- case BFmode:
+ case E_BFmode:
vmode = V8BFmode;
break;
- case SFmode:
+ case E_SFmode:
vmode = V4SFmode;
break;
- case DFmode:
+ case E_DFmode:
vmode = V2DFmode;
break;
default:
