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-rw-r--r--toolchain/gcc/3.4.2/601-gcc34-arm-ldm.patch119
1 files changed, 0 insertions, 119 deletions
diff --git a/toolchain/gcc/3.4.2/601-gcc34-arm-ldm.patch b/toolchain/gcc/3.4.2/601-gcc34-arm-ldm.patch
deleted file mode 100644
index 142052fdf..000000000
--- a/toolchain/gcc/3.4.2/601-gcc34-arm-ldm.patch
+++ /dev/null
@@ -1,119 +0,0 @@
---- gcc-3.4.0/gcc/config/arm/arm.c.arm-ldm 2004-02-27 09:51:05.000000000 -0500
-+++ gcc-3.4.0/gcc/config/arm/arm.c 2004-04-24 18:16:25.000000000 -0400
-@@ -8520,6 +8520,26 @@
- return_used_this_function = 0;
- }
-
-+/* Return the number (counting from 0) of
-+ the least significant set bit in MASK. */
-+
-+#ifdef __GNUC__
-+inline
-+#endif
-+static int
-+number_of_first_bit_set (mask)
-+ int mask;
-+{
-+ int bit;
-+
-+ for (bit = 0;
-+ (mask & (1 << bit)) == 0;
-+ ++bit)
-+ continue;
-+
-+ return bit;
-+}
-+
- const char *
- arm_output_epilogue (rtx sibling)
- {
-@@ -8753,27 +8773,47 @@
- saved_regs_mask |= (1 << PC_REGNUM);
- }
-
-- /* Load the registers off the stack. If we only have one register
-- to load use the LDR instruction - it is faster. */
-- if (saved_regs_mask == (1 << LR_REGNUM))
-- {
-- /* The exception handler ignores the LR, so we do
-- not really need to load it off the stack. */
-- if (eh_ofs)
-- asm_fprintf (f, "\tadd\t%r, %r, #4\n", SP_REGNUM, SP_REGNUM);
-- else
-- asm_fprintf (f, "\tldr\t%r, [%r], #4\n", LR_REGNUM, SP_REGNUM);
-- }
-- else if (saved_regs_mask)
-+ if (saved_regs_mask)
- {
-- if (saved_regs_mask & (1 << SP_REGNUM))
-- /* Note - write back to the stack register is not enabled
-- (ie "ldmfd sp!..."). We know that the stack pointer is
-- in the list of registers and if we add writeback the
-- instruction becomes UNPREDICTABLE. */
-- print_multi_reg (f, "ldmfd\t%r", SP_REGNUM, saved_regs_mask);
-+ /* Load the registers off the stack. If we only have one register
-+ to load use the LDR instruction - it is faster. */
-+ if (bit_count (saved_regs_mask) == 1)
-+ {
-+ int reg = number_of_first_bit_set (saved_regs_mask);
-+
-+ switch (reg)
-+ {
-+ case SP_REGNUM:
-+ /* Mustn't use base writeback when loading SP. */
-+ asm_fprintf (f, "\tldr\t%r, [%r]\n", SP_REGNUM, SP_REGNUM);
-+ break;
-+
-+ case LR_REGNUM:
-+ if (eh_ofs)
-+ {
-+ /* The exception handler ignores the LR, so we do
-+ not really need to load it off the stack. */
-+ asm_fprintf (f, "\tadd\t%r, %r, #4\n", SP_REGNUM, SP_REGNUM);
-+ break;
-+ }
-+ /* else fall through */
-+
-+ default:
-+ asm_fprintf (f, "\tldr\t%r, [%r], #4\n", reg, SP_REGNUM);
-+ break;
-+ }
-+ }
- else
-- print_multi_reg (f, "ldmfd\t%r!", SP_REGNUM, saved_regs_mask);
-+ {
-+ if (saved_regs_mask & (1 << SP_REGNUM))
-+ /* Note - write back to the stack register is not enabled
-+ (ie "ldmfd sp!..."). We know that the stack pointer is
-+ in the list of registers and if we add writeback the
-+ instruction becomes UNPREDICTABLE. */
-+ print_multi_reg (f, "ldmfd\t%r", SP_REGNUM, saved_regs_mask);
-+ else
-+ print_multi_reg (f, "ldmfd\t%r!", SP_REGNUM, saved_regs_mask);
-+ }
- }
-
- if (current_function_pretend_args_size)
-@@ -11401,22 +11441,6 @@
- }
- }
-
--/* Return the number (counting from 0) of
-- the least significant set bit in MASK. */
--
--inline static int
--number_of_first_bit_set (int mask)
--{
-- int bit;
--
-- for (bit = 0;
-- (mask & (1 << bit)) == 0;
-- ++bit)
-- continue;
--
-- return bit;
--}
--
- /* Generate code to return from a thumb function.
- If 'reg_containing_return_addr' is -1, then the return address is
- actually on the stack, at the stack pointer. */