[x86_64 backend] fix wrong register selection of f32/f64 max/min (#743)

Author: Changqing-JING

RELEASENOTES.md

@@ -1,5 +1,8 @@
 # Wasm Compiler Release Notes
 
+## 3.0.9
+- x86_64 backend: fix wrong register selection of f32/f64 max/min.
+
 ## 3.0.8
 
 - Fixed wrong machine type for type_cast instruction
@@ -72,6 +75,11 @@
 
 - Stop supporting of tc1.6 and only support tc1.8
 
+## Release v2 known issues
+- [Bug fixed by 3.0.9](#309)
+- [Bug fixed by 3.0.4](#304)
+
+
 ## 2.2.3
 
 - Replace `vb_MemUtils` with `vb_libutils` for tricore backend.

src/core/compiler/backend/x86_64/x86_64_backend.cpp

@@ -3540,6 +3540,7 @@ StackElement Backend::emitInstrsFloatMinMax(StackElement *const arg0Ptr, StackEl
   }
 
   RegAllocTracker regAllocTracker{};
+  regAllocTracker.futureLifts = mask(arg1Ptr);
   REG const arg0Reg{common_.liftToRegInPlaceProt(*arg0Ptr, true, targetHint, regAllocTracker).reg};
   REG const arg1Reg{common_.liftToRegInPlaceProt(*arg1Ptr, false, regAllocTracker).reg};
 

tests/testsuite/vb_f32_cmp.wast

@@ -2456,4 +2456,24 @@
 (assert_return (invoke "le" (f32.const nan) (f32.const nan)) (i32.const 0))
 (assert_return (invoke "le" (f32.const nan:0x200000) (f32.const nan)) (i32.const 0))
 (assert_return (invoke "le" (f32.const nan) (f32.const nan:0x200000)) (i32.const 0))
-(assert_return (invoke "le" (f32.const nan:0x200000) (f32.const nan:0x200000)) (i32.const 0))
+(assert_return (invoke "le" (f32.const nan:0x200000) (f32.const nan:0x200000)) (i32.const 0))
+
+(module
+  
+  (func $foo (result f32)
+    (local f32)
+    f32.const 0
+    local.set 0
+    
+    f32.const 100
+    
+    local.get 0
+    f32.min
+    local.tee 0
+    
+    )
+
+  (export "func" (func $foo))
+)
+
+(assert_return (invoke "func") (f32.const 0))