[compiler-rt] [compiler-rt] Add initial ARM64EC builtins support (PR #139279)
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Fri May 9 08:15:07 PDT 2025
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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->
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<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions h,inc,c -- compiler-rt/lib/builtins/clear_cache.c compiler-rt/lib/builtins/cpu_model/aarch64.c compiler-rt/lib/builtins/cpu_model/aarch64.h compiler-rt/lib/builtins/fp_compare_impl.inc compiler-rt/lib/builtins/fp_lib.h compiler-rt/lib/builtins/udivmodti4.c compiler-rt/test/builtins/Unit/enable_execute_stack_test.c compiler-rt/test/builtins/Unit/fixunstfdi_test.c compiler-rt/test/builtins/Unit/multc3_test.c
``````````
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<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/compiler-rt/test/builtins/Unit/fixunstfdi_test.c b/compiler-rt/test/builtins/Unit/fixunstfdi_test.c
index 982f3a462..0a66602fa 100644
--- a/compiler-rt/test/builtins/Unit/fixunstfdi_test.c
+++ b/compiler-rt/test/builtins/Unit/fixunstfdi_test.c
@@ -6,7 +6,7 @@
#if _ARCH_PPC || __aarch64__ || __arm64ec__
-#include "int_lib.h"
+# include "int_lib.h"
// Returns: convert a to a unsigned long long, rounding toward zero.
// Negative values all become zero.
@@ -36,77 +36,77 @@ char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
int main()
{
#if _ARCH_PPC || __aarch64__ || __arm64ec__
- if (test__fixunstfdi(0.0, 0))
- return 1;
-
- if (test__fixunstfdi(0.5, 0))
- return 1;
- if (test__fixunstfdi(0.99, 0))
- return 1;
- if (test__fixunstfdi(1.0, 1))
- return 1;
- if (test__fixunstfdi(1.5, 1))
- return 1;
- if (test__fixunstfdi(1.99, 1))
- return 1;
- if (test__fixunstfdi(2.0, 2))
- return 1;
- if (test__fixunstfdi(2.01, 2))
- return 1;
- if (test__fixunstfdi(-0.5, 0))
- return 1;
- if (test__fixunstfdi(-0.99, 0))
- return 1;
- if (test__fixunstfdi(-1.0, 0))
- return 1;
- if (test__fixunstfdi(-1.5, 0))
- return 1;
- if (test__fixunstfdi(-1.99, 0))
- return 1;
- if (test__fixunstfdi(-2.0, 0))
- return 1;
- if (test__fixunstfdi(-2.01, 0))
- return 1;
-
- if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
- return 1;
- if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
- return 1;
-
- if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
- return 1;
- if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
- return 1;
-
- if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
- return 1;
- if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
- return 1;
-
- if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
- return 1;
- if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
- return 1;
-
- if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
- return 1;
- if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
- return 1;
- if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
- return 1;
- if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
- return 1;
- if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
- return 1;
- if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
- return 1;
-
- if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
- return 1;
- if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
- return 1;
- if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
- return 1;
+ if (test__fixunstfdi(0.0, 0))
+ return 1;
+
+ if (test__fixunstfdi(0.5, 0))
+ return 1;
+ if (test__fixunstfdi(0.99, 0))
+ return 1;
+ if (test__fixunstfdi(1.0, 1))
+ return 1;
+ if (test__fixunstfdi(1.5, 1))
+ return 1;
+ if (test__fixunstfdi(1.99, 1))
+ return 1;
+ if (test__fixunstfdi(2.0, 2))
+ return 1;
+ if (test__fixunstfdi(2.01, 2))
+ return 1;
+ if (test__fixunstfdi(-0.5, 0))
+ return 1;
+ if (test__fixunstfdi(-0.99, 0))
+ return 1;
+ if (test__fixunstfdi(-1.0, 0))
+ return 1;
+ if (test__fixunstfdi(-1.5, 0))
+ return 1;
+ if (test__fixunstfdi(-1.99, 0))
+ return 1;
+ if (test__fixunstfdi(-2.0, 0))
+ return 1;
+ if (test__fixunstfdi(-2.01, 0))
+ return 1;
+
+ if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
+ return 1;
+ if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
+ return 1;
+
+ if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
+ return 1;
+ if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
+ return 1;
+
+ if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
+ return 1;
+ if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
+ return 1;
+
+ if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
+ return 1;
+ if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
+ return 1;
+
+ if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
+ return 1;
+ if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
+ return 1;
+ if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
+ return 1;
+ if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
+ return 1;
+ if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
+ return 1;
+ if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
+ return 1;
+
+ if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
+ return 1;
+ if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
+ return 1;
+ if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
+ return 1;
#else
printf("skipped\n");
diff --git a/compiler-rt/test/builtins/Unit/multc3_test.c b/compiler-rt/test/builtins/Unit/multc3_test.c
index e9c99a72b..44707c75d 100644
--- a/compiler-rt/test/builtins/Unit/multc3_test.c
+++ b/compiler-rt/test/builtins/Unit/multc3_test.c
@@ -6,9 +6,9 @@
#if _ARCH_PPC || __aarch64__ || __arm64ec__
-#include "int_lib.h"
-#include <math.h>
-#include <complex.h>
+# include "int_lib.h"
+# include <math.h>
+# include <complex.h>
// Returns: the product of a + ib and c + id
@@ -349,16 +349,14 @@ long double x[][2] =
int main()
{
#if _ARCH_PPC || __aarch64__ || __arm64ec__
- const unsigned N = sizeof(x) / sizeof(x[0]);
- unsigned i, j;
- for (i = 0; i < N; ++i)
- {
- for (j = 0; j < N; ++j)
- {
- if (test__multc3(x[i][0], x[i][1], x[j][0], x[j][1]))
- return 1;
- }
+ const unsigned N = sizeof(x) / sizeof(x[0]);
+ unsigned i, j;
+ for (i = 0; i < N; ++i) {
+ for (j = 0; j < N; ++j) {
+ if (test__multc3(x[i][0], x[i][1], x[j][0], x[j][1]))
+ return 1;
}
+ }
#else
printf("skipped\n");
#endif
``````````
</details>
https://github.com/llvm/llvm-project/pull/139279
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