[pypy-commit] pypy ppc-jit-backend: Implemented INT_IS_TRUE and INT_NEG.

hager noreply at buildbot.pypy.org
Mon Aug 15 20:07:05 CEST 2011


Author: hager <sven.hager at uni-duesseldorf.de>
Branch: ppc-jit-backend
Changeset: r46525:e291958cc2d1
Date: 2011-08-15 20:10 +0200
http://bitbucket.org/pypy/pypy/changeset/e291958cc2d1/

Log:	Implemented INT_IS_TRUE and INT_NEG.

diff --git a/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py b/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
--- a/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
+++ b/pypy/jit/backend/ppc/ppcgen/ppc_assembler.py
@@ -1347,6 +1347,37 @@
         cpu.reg_map[result] = free_reg
         cpu.next_free_register += 1
 
+    def emit_int_is_true(self, op, cpu):
+        arg0 = op.getarg(0)
+        if isinstance(arg0, BoxInt):
+            reg0 = cpu.reg_map[arg0]
+        else:
+            reg0 = cpu.get_next_register()
+            self.load_word(reg0, arg0.value)
+        
+        free_reg = cpu.next_free_register
+        self.addic(free_reg, reg0, -1)
+        self.subfe(0, free_reg, reg0)
+        self.mr(free_reg, 0)
+        result = op.result
+        cpu.reg_map[result] = free_reg
+        cpu.next_free_register += 1
+
+    def emit_int_neg(self, op, cpu):
+        arg0 = op.getarg(0)
+        if isinstance(arg0, BoxInt):
+            reg0 = cpu.reg_map[arg0]
+        else:
+            reg0 = cpu.get_next_register()
+            self.load_word(reg0, arg0.value)
+
+        free_reg = cpu.next_free_register
+        self.load_word(free_reg, 0)
+        self.sub(free_reg, free_reg, reg0)
+        result = op.result
+        cpu.reg_map[result] = free_reg
+        cpu.next_free_register += 1
+
     def emit_guard_true(self, op, cpu):
         arg0 = op.getarg(0)
         regnum = cpu.reg_map[arg0]


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