From e0d0dc704ce69e079d70ad2e98c3ae21cce56379 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Sun, 9 Jun 2024 13:20:48 +0100 Subject: Make `f32(u8)` etc do an immediate cast to `f32(u32(u8))` in code generation --- src/llvm_backend_expr.cpp | 31 +++++++++++++++++++++++++++++-- 1 file changed, 29 insertions(+), 2 deletions(-) (limited to 'src/llvm_backend_expr.cpp') diff --git a/src/llvm_backend_expr.cpp b/src/llvm_backend_expr.cpp index 36af60e46..98e773ddb 100644 --- a/src/llvm_backend_expr.cpp +++ b/src/llvm_backend_expr.cpp @@ -1873,13 +1873,40 @@ gb_internal lbValue lb_emit_conv(lbProcedure *p, lbValue value, Type *t) { lbValue res_i128 = lb_emit_runtime_call(p, call, args); return lb_emit_conv(p, res_i128, t); } + i64 sz = type_size_of(src); lbValue res = {}; res.type = t; if (is_type_unsigned(dst)) { - res.value = LLVMBuildFPToUI(p->builder, value.value, lb_type(m, t), ""); + switch (sz) { + case 2: + case 4: + res.value = LLVMBuildFPToUI(p->builder, value.value, lb_type(m, t_u32), ""); + res.value = LLVMBuildIntCast2(p->builder, res.value, lb_type(m, t), false, ""); + break; + case 8: + res.value = LLVMBuildFPToUI(p->builder, value.value, lb_type(m, t_u64), ""); + res.value = LLVMBuildIntCast2(p->builder, res.value, lb_type(m, t), false, ""); + break; + default: + GB_PANIC("Unhandled float type"); + break; + } } else { - res.value = LLVMBuildFPToSI(p->builder, value.value, lb_type(m, t), ""); + switch (sz) { + case 2: + case 4: + res.value = LLVMBuildFPToSI(p->builder, value.value, lb_type(m, t_i32), ""); + res.value = LLVMBuildIntCast2(p->builder, res.value, lb_type(m, t), false, ""); + break; + case 8: + res.value = LLVMBuildFPToSI(p->builder, value.value, lb_type(m, t_i64), ""); + res.value = LLVMBuildIntCast2(p->builder, res.value, lb_type(m, t), false, ""); + break; + default: + GB_PANIC("Unhandled float type"); + break; + } } return res; } -- cgit v1.2.3