From 7ec0236fbf55939ef46662a732b00908730f826b Mon Sep 17 00:00:00 2001 From: gingerBill Date: Thu, 26 May 2022 11:14:22 +0100 Subject: Add `simd_reverse` --- src/llvm_backend_proc.cpp | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'src/llvm_backend_proc.cpp') diff --git a/src/llvm_backend_proc.cpp b/src/llvm_backend_proc.cpp index 88129ba5d..42f5a60fa 100644 --- a/src/llvm_backend_proc.cpp +++ b/src/llvm_backend_proc.cpp @@ -1338,6 +1338,22 @@ lbValue lb_build_builtin_simd_proc(lbProcedure *p, Ast *expr, TypeAndValue const return res; } + case BuiltinProc_simd_reverse: + { + i64 count = get_array_type_count(arg0.type); + LLVMValueRef *values = gb_alloc_array(temporary_allocator(), LLVMValueRef, count); + LLVMTypeRef llvm_u32 = lb_type(m, t_u32); + for (i64 i = 0; i < count; i++) { + values[i] = LLVMConstInt(llvm_u32, count-1-i, false); + } + LLVMValueRef mask = LLVMConstVector(values, cast(unsigned)count); + + LLVMValueRef v = arg0.value; + res.value = LLVMBuildShuffleVector(p->builder, v, v, mask, ""); + return res; + } + + } GB_PANIC("Unhandled simd intrinsic: '%.*s'", LIT(builtin_procs[builtin_id].name)); -- cgit v1.2.3