From: Marek Olšák <marek.olsak@amd.com>
Date: Mon, 29 Oct 2018 21:22:03 +0000 (-0400)
Subject: ac: fix ac_build_fdiv for f64
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8676af12c8e8e223f186059705f189ae7d3cae60;p=mesa.git

ac: fix ac_build_fdiv for f64

trivial

Fixes: a5f35aa742c
---

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index c54a50dcd86..1392ec0f238 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -597,7 +597,8 @@ ac_build_fdiv(struct ac_llvm_context *ctx,
 	 * If we do (num * (1 / den)), LLVM does:
 	 *    return num * v_rcp_f32(den);
 	 */
-	LLVMValueRef rcp = LLVMBuildFDiv(ctx->builder, ctx->f32_1, den, "");
+	LLVMValueRef one = LLVMTypeOf(num) == ctx->f64 ? ctx->f64_1 : ctx->f32_1;
+	LLVMValueRef rcp = LLVMBuildFDiv(ctx->builder, one, den, "");
 	LLVMValueRef ret = LLVMBuildFMul(ctx->builder, num, rcp, "");
 
 	/* Use v_rcp_f32 instead of precise division. */