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rename table_lookup to runtime_swizzle

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This commit is contained in:
Jon Lipstate
2025-07-16 21:54:24 -07:00
parent fc78f6e83b
commit ecd41b155d
5 changed files with 18 additions and 18 deletions
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20
src/llvm_backend_proc.cpp
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@@ -1721,7 +1721,7 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
return res;
}
case BuiltinProc_simd_table_lookup:
case BuiltinProc_simd_runtime_swizzle:
{
LLVMValueRef table = arg0.value;
LLVMValueRef indices = lb_build_expr(p, ce->args[1]).value;
@@ -1734,11 +1734,11 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
// Determine strategy based on element size and target architecture
char const *intrinsic_name = nullptr;
bool use_hardware_table_lookup = false;
bool use_hardware_runtime_swizzle = false;
// 8-bit elements: Use dedicated table lookup instructions
if (elem_size == 1) {
use_hardware_table_lookup = true;
use_hardware_runtime_swizzle = true;
if (build_context.metrics.arch == TargetArch_amd64 || build_context.metrics.arch == TargetArch_i386) {
// x86/x86-64: Use pshufb intrinsics
@@ -1753,7 +1753,7 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
intrinsic_name = "llvm.x86.avx512.pshuf.b.512";
break;
default:
use_hardware_table_lookup = false;
use_hardware_runtime_swizzle = false;
break;
}
} else if (build_context.metrics.arch == TargetArch_arm64) {
@@ -1772,7 +1772,7 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
intrinsic_name = "llvm.aarch64.neon.tbl4";
break;
default:
use_hardware_table_lookup = false;
use_hardware_runtime_swizzle = false;
break;
}
} else if (build_context.metrics.arch == TargetArch_arm32) {
@@ -1791,7 +1791,7 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
intrinsic_name = "llvm.arm.neon.vtbl4";
break;
default:
use_hardware_table_lookup = false;
use_hardware_runtime_swizzle = false;
break;
}
} else if (build_context.metrics.arch == TargetArch_wasm32 || build_context.metrics.arch == TargetArch_wasm64p32) {
@@ -1799,14 +1799,14 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
if (count == 16) {
intrinsic_name = "llvm.wasm.swizzle";
} else {
use_hardware_table_lookup = false;
use_hardware_runtime_swizzle = false;
}
} else {
use_hardware_table_lookup = false;
use_hardware_runtime_swizzle = false;
}
}
if (use_hardware_table_lookup && intrinsic_name != nullptr) {
if (use_hardware_runtime_swizzle && intrinsic_name != nullptr) {
// Use dedicated hardware table lookup instruction
// Check if required target features are enabled
@@ -1932,7 +1932,7 @@ gb_internal lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAn
return res;
} else {
// Features not enabled, fall back to emulation
use_hardware_table_lookup = false;
use_hardware_runtime_swizzle = false;
}
}