[clang] [Sparc][clang] Use 64-bit long double on bare-metal targets (PR #222304)

[Daniel Cederman via cfe-commits]

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@@ -1122,19 +1122,29 @@
 // SPARC:#define __INT_LEAST8_MAX__ 127
 // SPARC:#define __INT_LEAST8_TYPE__ signed char
 // SPARC:#define __INT_MAX__ 2147483647
-// SPARC:#define __LDBL_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966L
-// SPARC:#define __LDBL_DIG__ 33
-// SPARC:#define __LDBL_EPSILON__ 1.92592994438723585305597794258492732e-34L
+// SPARC-DEFAULT:#define __LDBL_DENORM_MIN__ 4.9406564584124654e-324L
+// SPARC-NETOPENBSD:#define __LDBL_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966L
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doac wrote:

As I understand it, Solaris always use 128-bit and the Linux target uses 128-bit if used with a modern glibc (2.4+).

https://github.com/llvm/llvm-project/pull/222304