diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-01-05 20:29:06 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-01-05 20:29:06 +0000 |
| commit | f7998397e8b9f476da226d470f98b6ceadbdde19 (patch) | |
| tree | 0afab63e815744564a65ada194bc5bd5d65e5f3f | |
| parent | 9309c9945b3d9044b5f1942beb749290ee5a63f2 (diff) | |
| download | gcc-f7998397e8b9f476da226d470f98b6ceadbdde19.tar.gz | |
PR target/18910
* config/i386/i386.c (ix86_expand_move): Handle tls symbols
with an offset.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@92968 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 31 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tls/opt-8.c | 13 |
3 files changed, 45 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 08b41f583f3..7797ffc5f47 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2005-01-05 Jan Hubicka <jh@suse.cz> + Richard Henderson <rth@redhat.com> + + PR target/18910 + * config/i386/i386.c (ix86_expand_move): Handle tls symbols + with an offset. + 2005-01-05 Richard Henderson <rth@redhat.com> PR target/12902 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 51d36f18626..ca1f1f7f00d 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -7472,13 +7472,32 @@ ix86_expand_move (enum machine_mode mode, rtx operands[]) op0 = operands[0]; op1 = operands[1]; - model = GET_CODE (op1) == SYMBOL_REF ? SYMBOL_REF_TLS_MODEL (op1) : 0; - if (model) + if (GET_CODE (op1) == SYMBOL_REF) { - op1 = legitimize_tls_address (op1, model, true); - op1 = force_operand (op1, op0); - if (op1 == op0) - return; + model = SYMBOL_REF_TLS_MODEL (op1); + if (model) + { + op1 = legitimize_tls_address (op1, model, true); + op1 = force_operand (op1, op0); + if (op1 == op0) + return; + } + } + else if (GET_CODE (op1) == CONST + && GET_CODE (XEXP (op1, 0)) == PLUS + && GET_CODE (XEXP (XEXP (op1, 0), 0)) == SYMBOL_REF) + { + model = SYMBOL_REF_TLS_MODEL (XEXP (XEXP (op1, 0), 0)); + if (model) + { + rtx addend = XEXP (XEXP (op1, 0), 1); + op1 = legitimize_tls_address (XEXP (XEXP (op1, 0), 0), model, true); + op1 = force_operand (op1, NULL); + op1 = expand_simple_binop (Pmode, PLUS, op1, addend, + op0, 1, OPTAB_DIRECT); + if (op1 == op0) + return; + } } if (flag_pic && mode == Pmode && symbolic_operand (op1, Pmode)) diff --git a/gcc/testsuite/gcc.dg/tls/opt-8.c b/gcc/testsuite/gcc.dg/tls/opt-8.c new file mode 100644 index 00000000000..dec0eabcb4c --- /dev/null +++ b/gcc/testsuite/gcc.dg/tls/opt-8.c @@ -0,0 +1,13 @@ +/* PR 18910 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +static __thread void *foo [2]; +void +test1 (void) +{ + unsigned int s; + + for (s = 0; s < 2; ++s) + foo [s] = &foo[s]; +} |