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 c54a50dcd86a2ee79f240831087bd952a292145a..1392ec0f2389629630eecd55b400e614b7939c8c 100644 (file)
--- 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. */