35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
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From https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92061#c5
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--- a/gcc/genconditions.c 2019-01-01 12:37:19.064943662 +0100
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+++ b/gcc/genconditions.c 2019-10-11 10:57:11.464595789 +0200
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@@ -57,8 +57,9 @@ write_header (void)
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\n\
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/* It is necessary, but not entirely safe, to include the headers below\n\
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in a generator program. As a defensive measure, don't do so when the\n\
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- table isn't going to have anything in it. */\n\
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-#if GCC_VERSION >= 3001\n\
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+ table isn't going to have anything in it.\n\
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+ Clang 9 is buggy and doesn't handle __builtin_constant_p correctly. */\n\
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+#if GCC_VERSION >= 3001 && __clang_major__ < 9\n\
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\n\
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/* Do not allow checking to confuse the issue. */\n\
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#undef CHECKING_P\n\
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@@ -170,7 +171,7 @@ struct c_test\n\
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vary at run time. It works in 3.0.1 and later; 3.0 only when not\n\
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optimizing. */\n\
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\n\
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-#if GCC_VERSION >= 3001\n\
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+#if GCC_VERSION >= 3001 && __clang_major__ < 9\n\
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static const struct c_test insn_conditions[] = {\n");
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traverse_c_tests (write_one_condition, 0);
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@@ -191,7 +192,7 @@ write_writer (void)
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" unsigned int i;\n"
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" const char *p;\n"
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" puts (\"(define_conditions [\");\n"
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- "#if GCC_VERSION >= 3001\n"
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+ "#if GCC_VERSION >= 3001 && __clang_major__ < 9\n"
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" for (i = 0; i < ARRAY_SIZE (insn_conditions); i++)\n"
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" {\n"
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" printf (\" (%d \\\"\", insn_conditions[i].value);\n"
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