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crt-test: Add a testcase for a case where a broken optimization in LLVM broke the compiler builtin division helpers

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https://reviews.llvm.org/D88783 caused this to break.
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Martin Storsjö committed 2020-10-12 14:20:49 +03:00
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commit 6ae2bfa3ad
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test/crt-test.c
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@@ -1456,6 +1456,7 @@ int main(int argc, char* argv[]) {
TEST_INT(LL(0) / LL(4294967296), 0); // __rt_sdiv64
TEST_INT(LL(4294967296) / LL(4294967296), 1); // __rt_sdiv64
TEST_INT(LL(4294967295) / LL(4294967296), 0); // __rt_sdiv64
TEST_INT(LL(883547321287490176) / LL(128), 6902713447558517LL); // __rt_sdiv64
TEST_INT(ULL(7) / 7, 1); // __rt_udiv64
TEST_INT(ULL(4294967289) / LL(7), 613566755); // __rt_udiv64
@@ -1472,6 +1473,7 @@ int main(int argc, char* argv[]) {
TEST_INT(ULL(0) / ULL(4294967296), 0); // __rt_udiv64
TEST_INT(ULL(4294967296) / ULL(4294967296), 1); // __rt_udiv64
TEST_INT(ULL(4294967297) / ULL(8589934593), 0); // __rt_udiv64
TEST_INT(ULL(883547321287490176) / ULL(128), 6902713447558517ULL); // __rt_udiv64
TEST_INT(L(7) % L(7), 0); // __rt_sdiv