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ac: add 128-bit bitcount

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Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
This commit is contained in:
Marek Olšák
2019-12-30 14:08:09 -05:00
parent d7b565365e
commit 1c44480538
2 changed files with 12 additions and 0 deletions
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9
src/amd/llvm/ac_llvm_build.c
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@@ -85,6 +85,7 @@ ac_llvm_context_init(struct ac_llvm_context *ctx,
ctx->i16 = LLVMIntTypeInContext(ctx->context, 16);
ctx->i32 = LLVMIntTypeInContext(ctx->context, 32);
ctx->i64 = LLVMIntTypeInContext(ctx->context, 64);
ctx->i128 = LLVMIntTypeInContext(ctx->context, 128);
ctx->intptr = ctx->i32;
ctx->f16 = LLVMHalfTypeInContext(ctx->context);
ctx->f32 = LLVMFloatTypeInContext(ctx->context);
@@ -108,6 +109,8 @@ ac_llvm_context_init(struct ac_llvm_context *ctx,
ctx->i32_1 = LLVMConstInt(ctx->i32, 1, false);
ctx->i64_0 = LLVMConstInt(ctx->i64, 0, false);
ctx->i64_1 = LLVMConstInt(ctx->i64, 1, false);
ctx->i128_0 = LLVMConstInt(ctx->i128, 0, false);
ctx->i128_1 = LLVMConstInt(ctx->i128, 1, false);
ctx->f16_0 = LLVMConstReal(ctx->f16, 0.0);
ctx->f16_1 = LLVMConstReal(ctx->f16, 1.0);
ctx->f32_0 = LLVMConstReal(ctx->f32, 0.0);
@@ -2817,6 +2820,12 @@ LLVMValueRef ac_build_bit_count(struct ac_llvm_context *ctx, LLVMValueRef src0)
bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(src0));
switch (bitsize) {
case 128:
result = ac_build_intrinsic(ctx, "llvm.ctpop.i128", ctx->i128,
(LLVMValueRef []) { src0 }, 1,
AC_FUNC_ATTR_READNONE);
result = LLVMBuildTrunc(ctx->builder, result, ctx->i32, "");
break;
case 64:
result = ac_build_intrinsic(ctx, "llvm.ctpop.i64", ctx->i64,
(LLVMValueRef []) { src0 }, 1,

3
src/amd/llvm/ac_llvm_build.h
View File

@@ -73,6 +73,7 @@ struct ac_llvm_context {
LLVMTypeRef i16;
LLVMTypeRef i32;
LLVMTypeRef i64;
LLVMTypeRef i128;
LLVMTypeRef intptr;
LLVMTypeRef f16;
LLVMTypeRef f32;
@@ -96,6 +97,8 @@ struct ac_llvm_context {
LLVMValueRef i32_1;
LLVMValueRef i64_0;
LLVMValueRef i64_1;
LLVMValueRef i128_0;
LLVMValueRef i128_1;
LLVMValueRef f16_0;
LLVMValueRef f16_1;
LLVMValueRef f32_0;