[clang] [llvm] [X86][AVX10.2] Support AVX10.2-SATCVT-DS new instructions. (PR #102592)

[Malay Sanghi via cfe-commits]

================
@@ -2122,6 +2122,36 @@ TARGET_BUILTIN(__builtin_ia32_vpdpwuud256, "V8iV8iV8iV8i", "nV:256:", "avxvnniin
 TARGET_BUILTIN(__builtin_ia32_vpdpwuuds128, "V4iV4iV4iV4i", "nV:128:", "avxvnniint16|avx10.2-256")
 TARGET_BUILTIN(__builtin_ia32_vpdpwuuds256, "V8iV8iV8iV8i", "nV:256:", "avxvnniint16|avx10.2-256")
 
+// AVX10.2 SATCVT-DS
+TARGET_BUILTIN(__builtin_ia32_vcvttssd2si32, "iV2dIi", "ncV:128:", "avx10.2-256")
+TARGET_BUILTIN(__builtin_ia32_vcvttssd2usi32, "UiV2dIi", "ncV:128:", "avx10.2-256")
+TARGET_BUILTIN(__builtin_ia32_vcvttsss2si32, "iV4fIi", "ncV:128:", "avx10.2-256")
+TARGET_BUILTIN(__builtin_ia32_vcvttsss2usi32, "UiV4fIi", "ncV:128:", "avx10.2-256")
----------------
MalaySanghi wrote:

I don't mind using sis32. I modelled these after the existing converts, and they don't use it.

TARGET_BUILTIN(__builtin_ia32_vcvtss2si32, "iV4fIi", "ncV:128:", "avx512f")
TARGET_BUILTIN(__builtin_ia32_vcvtss2usi32, "UiV4fIi", "ncV:128:", "avx512f")
TARGET_BUILTIN(__builtin_ia32_vcvttsd2si32, "iV2dIi", "ncV:128:", "avx512f")
TARGET_BUILTIN(__builtin_ia32_vcvttsd2usi32, "UiV2dIi", "ncV:128:", "avx512f")
TARGET_BUILTIN(__builtin_ia32_vcvttss2si32, "iV4fIi", "ncV:128:", "avx512f")
TARGET_BUILTIN(__builtin_ia32_vcvttss2usi32, "UiV4fIi", "ncV:128:", "avx512f")


https://github.com/llvm/llvm-project/pull/102592