re PR target/32163 (Compiling with stack protector causes reigster spill failure)
PR target/32163 * config/sh/sh.md (symGOT_load): Don't schedule insns when the symbol is generated with the stack protector. From-SVN: r125292
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@ -1,3 +1,9 @@
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2007-06-03 Kaz Kojima <kkojima@gcc.gnu.org>
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PR target/32163
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* config/sh/sh.md (symGOT_load): Don't schedule insns when
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the symbol is generated with the stack protector.
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2007-06-03 Kazu Hirata <kazu@codesourcery.com>
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2007-06-03 Kazu Hirata <kazu@codesourcery.com>
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* config/m68k/m68k.c (m68k_attribute_table): Add "interrupt".
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* config/m68k/m68k.c (m68k_attribute_table): Add "interrupt".
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@ -8502,6 +8502,20 @@ label:
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operands[2],
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operands[2],
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gen_rtx_REG (Pmode, PIC_REG)));
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gen_rtx_REG (Pmode, PIC_REG)));
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/* When stack protector inserts codes after the result is set to
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R0, @(rX, r12) will cause a spill failure for R0. Don't schedule
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insns to avoid combining (set A (plus rX r12)) and (set op0 (mem A))
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when rX is a GOT address for the guard symbol. Ugly but doesn't
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matter because this is a rare situation. */
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if (!TARGET_SHMEDIA
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&& flag_stack_protect
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&& GET_CODE (operands[1]) == CONST
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&& GET_CODE (XEXP (operands[1], 0)) == UNSPEC
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&& GET_CODE (XVECEXP (XEXP (operands[1], 0), 0, 0)) == SYMBOL_REF
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&& strcmp (XSTR (XVECEXP (XEXP (operands[1], 0), 0, 0), 0),
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\"__stack_chk_guard\") == 0)
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emit_insn (gen_blockage ());
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/* N.B. This is not constant for a GOTPLT relocation. */
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/* N.B. This is not constant for a GOTPLT relocation. */
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mem = gen_rtx_MEM (Pmode, operands[3]);
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mem = gen_rtx_MEM (Pmode, operands[3]);
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MEM_NOTRAP_P (mem) = 1;
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MEM_NOTRAP_P (mem) = 1;
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