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| author | Lulu Cheng <chenglulu@loongson.cn> | 2025-01-22 17:57:21 +0800 |
|---|---|---|
| committer | Lulu Cheng <chenglulu@loongson.cn> | 2025-02-06 19:03:39 +0800 |
| commit | 50d2bde68a097c2e9fb3bdd7e6664c8988889828 (patch) | |
| tree | c158d458059817c0fd29c8a7c9864dd78219c4c8 /gcc | |
| parent | 7eb260c8a472568912c1e0b83fb402d22977281e (diff) | |
| download | gcc-50d2bde68a097c2e9fb3bdd7e6664c8988889828.zip gcc-50d2bde68a097c2e9fb3bdd7e6664c8988889828.tar.gz gcc-50d2bde68a097c2e9fb3bdd7e6664c8988889828.tar.bz2 | |
LoongArch: Fix ICE caused by illegal calls to builtin functions [PR118561].
PR target/118561
gcc/ChangeLog:
* config/loongarch/loongarch-builtins.cc
(loongarch_expand_builtin_lsx_test_branch):
NULL_RTX will not be returned when an error is detected.
(loongarch_expand_builtin): Likewise.
gcc/testsuite/ChangeLog:
* gcc.target/loongarch/pr118561.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/loongarch/loongarch-builtins.cc | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/loongarch/pr118561.c | 9 |
2 files changed, 14 insertions, 2 deletions
diff --git a/gcc/config/loongarch/loongarch-builtins.cc b/gcc/config/loongarch/loongarch-builtins.cc index 92d995a..1849b35 100644 --- a/gcc/config/loongarch/loongarch-builtins.cc +++ b/gcc/config/loongarch/loongarch-builtins.cc @@ -2996,7 +2996,10 @@ loongarch_expand_builtin_lsx_test_branch (enum insn_code icode, tree exp) ops[1].value = force_reg (ops[1].mode, ops[1].value); if ((cbranch = maybe_gen_insn (icode, 3, ops)) == NULL_RTX) - error ("failed to expand built-in function"); + { + error ("failed to expand built-in function"); + return const0_rtx; + } cmp_result = gen_reg_rtx (SImode); @@ -3036,7 +3039,7 @@ loongarch_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, { error_at (EXPR_LOCATION (exp), "built-in function %qD is not enabled", fndecl); - return target; + return target ? target : const0_rtx; } switch (d->builtin_type) diff --git a/gcc/testsuite/gcc.target/loongarch/pr118561.c b/gcc/testsuite/gcc.target/loongarch/pr118561.c new file mode 100644 index 0000000..81a776e --- /dev/null +++ b/gcc/testsuite/gcc.target/loongarch/pr118561.c @@ -0,0 +1,9 @@ +/* PR target/118561: ICE with -mfpu=none */ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=loongarch64 -mfpu=none" } */ + +int +test (void) +{ + return __builtin_loongarch_movfcsr2gr (0); /* { dg-error "built-in function '__builtin_loongarch_movfcsr2gr' is not enabled" } */ +} |