[X64] trying to implement something for x64 which did not work (const…

… fp loading)
Cr0a3 · Oct 13, 2024 · 70721a3 · 70721a3
1 parent 6171111
commit 70721a3
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Showing 3 changed files with 19 additions and 2 deletions.
diff --git a/src/CodeGen/instr.rs b/src/CodeGen/instr.rs
@@ -82,7 +82,12 @@ impl MachineInstr {
 
                 let constant = module.addConst(&format!(".cimm{}", index));
                 constant.private();
-                constant.data = Vec::from(imm.to_ne_bytes());
+
+                if self.meta == TypeMetadata::f32 {
+                    constant.data = Vec::from((imm as f32).to_bits().to_be_bytes());
+                } else { // f64
+                    constant.data = Vec::from(imm.to_bits().to_le_bytes());
+                }
 
                 let stack_off = helper.alloc.alloc_stack(self.meta);
 
@@ -93,6 +98,14 @@ impl MachineInstr {
 
                 out.push(adrm);
 
+                let mut load = MachineInstr::new(MachineMnemonic::Load);
+                load.set_out(stack_off.into());
+                load.add_operand(stack_off.into());
+
+                load.meta = TypeMetadata::i64;
+
+                out.push(load);
+
                 *operand = stack_off.into();
 
                 index += 1;

diff --git a/src/IR/module.rs b/src/IR/module.rs
@@ -373,7 +373,7 @@ impl Module {
         lines.push_str("section .rodata\n\n");
 
         for (_, consta) in &self.consts {
-            lines.push_str(&format!("{}: {:?} # {}\n", consta.name, consta.data, consta.data.iter()                                      
+            lines.push_str(&format!("{}: {:02X?} # {}\n", consta.name, consta.data, consta.data.iter()                                      
                                                                                                 .filter_map(|&byte| {
                                                                                                     if byte >= 32 && byte <= 126 {
                                                                                                         Some(byte as char)

diff --git a/src/Target/x64/asm/instr.rs b/src/Target/x64/asm/instr.rs
@@ -1556,6 +1556,10 @@ impl Into<MemoryOperand> for MemOp {
             displ_size = 1;
         }
 
+        if self.rip {
+            base = Register::RIP;
+        }
+
         MemoryOperand::new(
             base, 
             index,