From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Mon, 8 Apr 2019 07:24:56 +0000 (+0200)
Subject: ac/nir: fix nir_op_b2f16
X-Git-Tag: upstream/19.3.0~7483
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bc6d486c78a43ab86aecf68e095620d72edc135e;p=platform%2Fupstream%2Fmesa.git

ac/nir: fix nir_op_b2f16

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index f2d5275..3d2f738 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,