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[Bug target/35135] New: [4.3 regression] unable to find a register to spill in class ‘GENERAL_REGS’
- From: "mueller at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Feb 2008 00:28:39 -0000
- Subject: [Bug target/35135] New: [4.3 regression] unable to find a register to spill in class ‘GENERAL_REGS’
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
gcc -v -O2 -c test.c
=== Cut ===
extension__ typedef unsigned long long int uint64_t;
typedef unsigned target_ulong;
register target_ulong T0 asm ("ebx");
register target_ulong T1 asm ("esi");
register target_ulong T2 asm ("edi");
typedef struct CPUX86State
{
uint64_t xmm_regs[8];
}
CPUX86State;
save_raw_fp_state (CPUX86State * env)
{
int i;
char *addr;
for (i = 0; i < 8; i++)
env->xmm_regs[i] = *(uint64_t *) (addr);
}
=== Cut ===
GNU C (SUSE Linux) version 4.3.0 20080131 (experimental) [trunk revision
131976] (i586-suse-linux)
compiled by GNU C version 4.3.0 20080131 (experimental) [trunk revision
131976], GMP version 4.2.2, MPFR version 2.3.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 86307befc2a0b2e7a5d9beb62be4b74e
test.c: In function ?save_raw_fp_state?:
test.c:18: error: unable to find a register to spill in class ?GENERAL_REGS?
test.c:18: error: this is the insn:
(insn:HI 14 13 15 3 test.c:17 (set (mem/s:DI (plus:SI (mult:SI (reg/v:SI 64 [ i
])
(const_int 8 [0x8]))
(reg/v/f:SI 66 [ env ])) [2 <variable>.xmm_regs S8 A8])
(reg:DI 67)) 63 {*movdi_2} (expr_list:REG_DEAD (reg:DI 67)
(nil)))
test.c:18: confused by earlier errors, bailing out
--
Summary: [4.3 regression] unable to find a register to spill in
class ?GENERAL_REGS?
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mueller at gcc dot gnu dot org
GCC host triplet: i686-suse-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35135