Mesa (main): ac/llvm: implement v2f16 fsat

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Module: Mesa
Branch: main
Commit: 0460f01fdc0c13deebf0d9bb8ee2a6ec5a74ffec
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0460f01fdc0c13deebf0d9bb8ee2a6ec5a74ffec

Author: Rhys Perry <pendingchaos02 at gmail.com>
Date:   Fri Jul 30 17:51:53 2021 +0100

ac/llvm: implement v2f16 fsat

Signed-off-by: Rhys Perry <pendingchaos02 at gmail.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12143>

---

 src/amd/llvm/ac_llvm_build.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/llvm/ac_llvm_build.c b/src/amd/llvm/ac_llvm_build.c
index e3276525046..c605772d647 100644
--- a/src/amd/llvm/ac_llvm_build.c
+++ b/src/amd/llvm/ac_llvm_build.c
@@ -2499,7 +2499,7 @@ LLVMValueRef ac_build_fsat(struct ac_llvm_context *ctx, LLVMValueRef src,
    LLVMValueRef one = LLVMConstReal(type, 1.0);
    LLVMValueRef result;
 
-   if (bitsize == 64 || (bitsize == 16 && ctx->chip_class <= GFX8)) {
+   if (bitsize == 64 || (bitsize == 16 && ctx->chip_class <= GFX8) || type == ctx->v2f16) {
       /* Use fmin/fmax for 64-bit fsat or 16-bit on GFX6-GFX8 because LLVM
        * doesn't expose an intrinsic.
        */