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ac: add 16-bit support to ac_build_ddxy()

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Rhys Perry
2019-04-08 09:24:57 +02:00
committed by Samuel Pitoiset
parent bc6d486c78
commit fd1fc255d9
1 changed files with 17 additions and 5 deletions
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src/amd/common/ac_llvm_build.c
+17 -5
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@@ -1862,9 +1862,16 @@ ac_build_ddxy(struct ac_llvm_context *ctx,
LLVMValueRef val)
{
unsigned tl_lanes[4], trbl_lanes[4];
char name[32], type[8];
LLVMValueRef tl, trbl;
LLVMTypeRef result_type;
LLVMValueRef result;
result_type = ac_to_float_type(ctx, LLVMTypeOf(val));
if (result_type == ctx->f16)
val = LLVMBuildZExt(ctx->builder, val, ctx->i32, "");
for (unsigned i = 0; i < 4; ++i) {
tl_lanes[i] = i & mask;
trbl_lanes[i] = (i & mask) + idx;
@@ -1877,14 +1884,19 @@ ac_build_ddxy(struct ac_llvm_context *ctx,
trbl_lanes[0], trbl_lanes[1],
trbl_lanes[2], trbl_lanes[3]);
tl = LLVMBuildBitCast(ctx->builder, tl, ctx->f32, "");
trbl = LLVMBuildBitCast(ctx->builder, trbl, ctx->f32, "");
if (result_type == ctx->f16) {
tl = LLVMBuildTrunc(ctx->builder, tl, ctx->i16, "");
trbl = LLVMBuildTrunc(ctx->builder, trbl, ctx->i16, "");
}
tl = LLVMBuildBitCast(ctx->builder, tl, result_type, "");
trbl = LLVMBuildBitCast(ctx->builder, trbl, result_type, "");
result = LLVMBuildFSub(ctx->builder, trbl, tl, "");
result = ac_build_intrinsic(ctx, "llvm.amdgcn.wqm.f32", ctx->f32,
&result, 1, 0);
ac_build_type_name_for_intr(result_type, type, sizeof(type));
snprintf(name, sizeof(name), "llvm.amdgcn.wqm.%s", type);
return result;
return ac_build_intrinsic(ctx, name, result_type, &result, 1, 0);
}
void