[OpenMP] Only test kmp_atomic_float10_max_min.c on X86

The test `openmp/runtime/test/atomic/kmp_atomic_float10_max_min.c` uses a compiler
flag `-mlong-double-80` that might not be supported by all targets. Currently it
requires `x86-registered-target`, but that requirement can be true when LLVM
supports X86 while the actual `libomp` arch is not X86. For example, when LLVM
is built on AArch64 with all targets enabled, `x86-registered-target` can be met.
If `libomp` is built with native target, aka. AArch64, the test will still be enabled,
causing test failure.

This patch only enables the test if the actual target is X86. The actual target
is determined by `LIBOMP_ARCH`.

Fix #53696.

Reviewed By: jlpeyton

Differential Revision: https://reviews.llvm.org/D142172

diff --git a/openmp/runtime/test/atomic/kmp_atomic_float10_max_min.c b/openmp/runtime/test/atomic/kmp_atomic_float10_max_min.c
index cc54e1a..82d8cbc 100644 (file)
--- a/openmp/runtime/test/atomic/kmp_atomic_float10_max_min.c
+++ b/openmp/runtime/test/atomic/kmp_atomic_float10_max_min.c
@@ -1,6 +1,6 @@
 // RUN: %libomp-compile -mlong-double-80 && %libomp-run
 // UNSUPPORTED: gcc
-// REQUIRES: x86-registered-target
+// REQUIRES: x86-target-arch
 
 #include <stdio.h>
 #include <omp.h>

diff --git a/openmp/runtime/test/lit.cfg b/openmp/runtime/test/lit.cfg
index 5e429d5..d008844 100644 (file)
--- a/openmp/runtime/test/lit.cfg
+++ b/openmp/runtime/test/lit.cfg
@@ -114,6 +114,12 @@ if config.operating_system in ['Linux', 'Windows']:
 if config.operating_system in ['Linux']:
     config.available_features.add('hidden-helper')
 
+target_arch = getattr(config, 'target_arch', None)
+if target_arch:
+  config.available_features.add(target_arch + '-target-arch')
+  if target_arch in ['x86_64', 'i386']:
+    config.available_features.add('x86-target-arch')
+
 # Avoid Windows heuristics which try to detect potential installer programs
 # (which may need to run with elevated privileges) and ask if the user wants
 # to run them in that way. This heuristic may match for executables containing

diff --git a/openmp/runtime/test/lit.site.cfg.in b/openmp/runtime/test/lit.site.cfg.in
index e84a2d3..45a18b4 100644 (file)
--- a/openmp/runtime/test/lit.site.cfg.in
+++ b/openmp/runtime/test/lit.site.cfg.in
@@ -19,6 +19,7 @@ config.has_libm = @LIBOMP_HAVE_LIBM@
 config.has_libatomic = @LIBOMP_HAVE_LIBATOMIC@
 config.is_standalone_build = @OPENMP_STANDALONE_BUILD@
 config.has_omit_frame_pointer_flag = @OPENMP_TEST_COMPILER_HAS_OMIT_FRAME_POINTER_FLAGS@
+config.target_arch = "@LIBOMP_ARCH@"
 
 # Let the main config do the real work.
 lit_config.load_config(config, "@LIBOMP_BASE_DIR@/test/lit.cfg")