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re PR target/43309 (amd64 TLS IE code sequence on Solaris 2/x86 violates spec)

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PR target/43309
	* config/i386/i386.c (legitimize_tls_address)
	<TLS_MODEL_INITIAL_EXEC>: Handle TARGET_64BIT && TARGET_SUN_TLS.
	* config/i386/i386.md (UNSPEC_TLS_IE_SUN): Declare.
	(tls_initial_exec_64_sun): New pattern.

From-SVN: r168553
This commit is contained in:
Rainer Orth 2011-01-06 19:44:32 +00:00 • committed by Rainer Orth
parent c73f67c50e
commit e1a973d838
3 changed files with 32 additions and 0 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2011-01-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
PR target/43309
* config/i386/i386.c (legitimize_tls_address)
<TLS_MODEL_INITIAL_EXEC>: Handle TARGET_64BIT && TARGET_SUN_TLS.
* config/i386/i386.md (UNSPEC_TLS_IE_SUN): Declare.
(tls_initial_exec_64_sun): New pattern.
2011-01-06 Gerald Pfeifer <gerald@pfeifer.com>
* doc/invoke.texi (Overall Options): Improve wording and markup

11
gcc/config/i386/i386.c
View file

@ -12505,6 +12505,17 @@ legitimize_tls_address (rtx x, enum tls_model model, int for_mov)
case TLS_MODEL_INITIAL_EXEC:
if (TARGET_64BIT)
{
if (TARGET_SUN_TLS)
{
/* The Sun linker took the AMD64 TLS spec literally
and can only handle %rax as destination of the
initial executable code sequence. */
dest = gen_reg_rtx (Pmode);
emit_insn (gen_tls_initial_exec_64_sun (dest, x));
return dest;
}
pic = NULL;
type = UNSPEC_GOTNTPOFF;
}

13
gcc/config/i386/i386.md
View file

@ -93,6 +93,7 @@
UNSPEC_TLS_GD
UNSPEC_TLS_LD_BASE
UNSPEC_TLSDESC
UNSPEC_TLS_IE_SUN
;; Other random patterns
UNSPEC_SCAS
@ -12688,6 +12689,18 @@
(set_attr "memory" "load")
(set_attr "imm_disp" "false")])
;; The Sun linker took the AMD64 TLS spec literally and can only handle
;; %rax as destination of the initial executable code sequence.
(define_insn "tls_initial_exec_64_sun"
[(set (match_operand:DI 0 "register_operand" "=a")
(unspec:DI
[(match_operand:DI 1 "tls_symbolic_operand" "")]
UNSPEC_TLS_IE_SUN))
(clobber (reg:CC FLAGS_REG))]
"TARGET_64BIT && TARGET_SUN_TLS"
"mov{q}\t{%%fs:0, %0|%0, QWORD PTR fs:0}\n\tadd{q}\t{%a1@gottpoff(%%rip), %0|%0, %a1@gottpoff[rip]}"
[(set_attr "type" "multi")])
;; GNU2 TLS patterns can be split.
(define_expand "tls_dynamic_gnu2_32"