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re PR target/48900 (unnecessary duplicate __tls_get_addr calls)

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PR target/48900
	* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use
	const0_rtx as the arg to the dummy __tls_get_addr libcall.

From-SVN: r173488
This commit is contained in:
Alan Modra 2011-05-06 23:51:16 +09:30 committed by Alan Modra
parent e194de64ac
commit 1fc1b66d4a
2 changed files with 12 additions and 4 deletions
gcc
ChangeLog
config/rs6000
rs6000.c

6
gcc/ChangeLog

@ -1,3 +1,9 @@
2011-05-06 Alan Modra <amodra@gmail.com>
PR target/48900
* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Use
const0_rtx as the arg to the dummy __tls_get_addr libcall.
2011-05-06 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (*movdf_internal_nointeger): Apply "*"

10
gcc/config/rs6000/rs6000.c

@ -6407,10 +6407,11 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
if (model == TLS_MODEL_GLOBAL_DYNAMIC)
{
r3 = gen_rtx_REG (Pmode, 3);
tga = rs6000_tls_get_addr ();
emit_library_call_value (tga, dest, LCT_CONST, Pmode, 1, r3, Pmode);
emit_library_call_value (tga, dest, LCT_CONST, Pmode,
1, const0_rtx, Pmode);
r3 = gen_rtx_REG (Pmode, 3);
if (DEFAULT_ABI == ABI_AIX && TARGET_64BIT)
insn = gen_tls_gd_aix64 (r3, got, addr, tga, const0_rtx);
else if (DEFAULT_ABI == ABI_AIX && !TARGET_64BIT)
@ -6427,11 +6428,12 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
}
else if (model == TLS_MODEL_LOCAL_DYNAMIC)
{
r3 = gen_rtx_REG (Pmode, 3);
tga = rs6000_tls_get_addr ();
tmp1 = gen_reg_rtx (Pmode);
emit_library_call_value (tga, tmp1, LCT_CONST, Pmode, 1, r3, Pmode);
emit_library_call_value (tga, tmp1, LCT_CONST, Pmode,
1, const0_rtx, Pmode);
r3 = gen_rtx_REG (Pmode, 3);
if (DEFAULT_ABI == ABI_AIX && TARGET_64BIT)
insn = gen_tls_ld_aix64 (r3, got, tga, const0_rtx);
else if (DEFAULT_ABI == ABI_AIX && !TARGET_64BIT)