diff options
Diffstat (limited to 'toolchain/gcc/patches/4.8-linaro/951-arm_bug_58595.patch')
| -rw-r--r-- | toolchain/gcc/patches/4.8-linaro/951-arm_bug_58595.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/4.8-linaro/951-arm_bug_58595.patch b/toolchain/gcc/patches/4.8-linaro/951-arm_bug_58595.patch new file mode 100644 index 0000000..f487dbc --- /dev/null +++ b/toolchain/gcc/patches/4.8-linaro/951-arm_bug_58595.patch @@ -0,0 +1,117 @@ +https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58595 + +--- /dev/null ++++ b/gcc/testsuite/gcc.dg/tls/pr58595.c +@@ -0,0 +1,28 @@ ++/* PR target/58595 */ ++/* { dg-do run } */ ++/* { dg-options "-O2" } */ ++/* { dg-additional-options "-fpic" { target fpic } } */ ++/* { dg-require-effective-target tls } */ ++/* { dg-require-effective-target sync_int_long } */ ++ ++struct S { unsigned long a, b; }; ++__thread struct S s; ++void bar (unsigned long *); ++ ++__attribute__((noinline)) void ++foo (void) ++{ ++ int i; ++ for (i = 0; i < 10; i++) ++ __sync_fetch_and_add (&s.b, 1L); ++} ++ ++int ++main () ++{ ++ s.b = 12; ++ foo (); ++ if (s.b != 22) ++ __builtin_abort (); ++ return 0; ++} +--- a/gcc/config/arm/arm.c ++++ b/gcc/config/arm/arm.c +@@ -231,7 +231,6 @@ static tree arm_gimplify_va_arg_expr (tr + static void arm_option_override (void); + static unsigned HOST_WIDE_INT arm_shift_truncation_mask (enum machine_mode); + static bool arm_cannot_copy_insn_p (rtx); +-static bool arm_tls_symbol_p (rtx x); + static int arm_issue_rate (void); + static void arm_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED; + static bool arm_output_addr_const_extra (FILE *, rtx); +@@ -6665,6 +6664,32 @@ legitimize_tls_address (rtx x, rtx reg) + rtx + arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode) + { ++ if (arm_tls_referenced_p (x)) ++ { ++ rtx addend = NULL; ++ ++ if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS) ++ { ++ addend = XEXP (XEXP (x, 0), 1); ++ x = XEXP (XEXP (x, 0), 0); ++ } ++ ++ if (GET_CODE (x) != SYMBOL_REF) ++ return x; ++ ++ gcc_assert (SYMBOL_REF_TLS_MODEL (x) != 0); ++ ++ x = legitimize_tls_address (x, NULL_RTX); ++ ++ if (addend) ++ { ++ x = gen_rtx_PLUS (SImode, x, addend); ++ orig_x = x; ++ } ++ else ++ return x; ++ } ++ + if (!TARGET_ARM) + { + /* TODO: legitimize_address for Thumb2. */ +@@ -6673,9 +6698,6 @@ arm_legitimize_address (rtx x, rtx orig_ + return thumb_legitimize_address (x, orig_x, mode); + } + +- if (arm_tls_symbol_p (x)) +- return legitimize_tls_address (x, NULL_RTX); +- + if (GET_CODE (x) == PLUS) + { + rtx xop0 = XEXP (x, 0); +@@ -6787,9 +6809,6 @@ arm_legitimize_address (rtx x, rtx orig_ + rtx + thumb_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode) + { +- if (arm_tls_symbol_p (x)) +- return legitimize_tls_address (x, NULL_RTX); +- + if (GET_CODE (x) == PLUS + && CONST_INT_P (XEXP (x, 1)) + && (INTVAL (XEXP (x, 1)) >= 32 * GET_MODE_SIZE (mode) +@@ -7080,20 +7099,6 @@ thumb_legitimize_reload_address (rtx *x_ + + /* Test for various thread-local symbols. */ + +-/* Return TRUE if X is a thread-local symbol. */ +- +-static bool +-arm_tls_symbol_p (rtx x) +-{ +- if (! TARGET_HAVE_TLS) +- return false; +- +- if (GET_CODE (x) != SYMBOL_REF) +- return false; +- +- return SYMBOL_REF_TLS_MODEL (x) != 0; +-} +- + /* Helper for arm_tls_referenced_p. */ + + static int |