[Mesa-dev] [PATCH 1/2] ac/nir: fix nir_op_b2f16

[Samuel Pitoiset]

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/common/ac_nir_to_llvm.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 6739551ca26..8510be5dfe6 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -322,10 +322,16 @@ static LLVMValueRef emit_b2f(struct ac_llvm_context *ctx,
 					   "");
 	result = LLVMBuildBitCast(ctx->builder, result, ctx->f32, "");
 
-	if (bitsize == 32)
+	switch (bitsize) {
+	case 16:
+		return LLVMBuildFPTrunc(ctx->builder, result, ctx->f16, "");
+	case 32:
 		return result;
-
-	return LLVMBuildFPExt(ctx->builder, result, ctx->f64, "");
+	case 64:
+		return LLVMBuildFPExt(ctx->builder, result, ctx->f64, "");
+	default:
+		unreachable("Unsupported bit size.");
+	}
 }
 
 static LLVMValueRef emit_f2b(struct ac_llvm_context *ctx,
-- 
2.21.0