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22 lines
910 B
22 lines
910 B
3 years ago
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* config/i386/i386.c (ix86_expand_prologue): Tighten assert
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for int_registers_saved.
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diff -rup a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
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--- a/gcc/config/i386/i386.c 2017-11-03 10:39:24.585633524 -0600
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+++ b/gcc/config/i386/i386.c 2017-11-03 10:41:10.654774032 -0600
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@@ -10686,8 +10686,12 @@ ix86_expand_prologue (void)
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&& (flag_stack_check == STATIC_BUILTIN_STACK_CHECK
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|| flag_stack_clash_protection))
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{
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- /* We expect the registers to be saved when probes are used. */
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- gcc_assert (int_registers_saved);
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+ /* This assert wants to verify that integer registers were saved
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+ prior to probing. This is necessary when probing may be implemented
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+ as a function call (Windows). It is not necessary for stack clash
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+ protection probing. */
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+ if (!flag_stack_clash_protection)
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+ gcc_assert (int_registers_saved);
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if (flag_stack_clash_protection)
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{
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