[SystemZ] Be more careful about inverting CC masks

[oota-llvm.git] / lib / Target / SystemZ / SystemZ.h

diff --git a/lib/Target/SystemZ/SystemZ.h b/lib/Target/SystemZ/SystemZ.h
index 24612bbce83d9952288a413219e443aef30844a6..4c1e81a082cc64c17ce86bbda93e28b99b48cb63 100644 (file)
--- a/lib/Target/SystemZ/SystemZ.h
+++ b/lib/Target/SystemZ/SystemZ.h
@@ -30,16 +30,28 @@ namespace llvm {
     const unsigned CCMASK_3 = 1 << 0;
     const unsigned CCMASK_ANY = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3;
 
-    // Condition-code mask assignments for floating-point comparisons.
+    // Condition-code mask assignments for integer and floating-point
+    // comparisons.
     const unsigned CCMASK_CMP_EQ = CCMASK_0;
     const unsigned CCMASK_CMP_LT = CCMASK_1;
     const unsigned CCMASK_CMP_GT = CCMASK_2;
-    const unsigned CCMASK_CMP_UO = CCMASK_3;
     const unsigned CCMASK_CMP_NE = CCMASK_CMP_LT | CCMASK_CMP_GT;
     const unsigned CCMASK_CMP_LE = CCMASK_CMP_EQ | CCMASK_CMP_LT;
     const unsigned CCMASK_CMP_GE = CCMASK_CMP_EQ | CCMASK_CMP_GT;
+
+    // Condition-code mask assignments for floating-point comparisons only.
+    const unsigned CCMASK_CMP_UO = CCMASK_3;
     const unsigned CCMASK_CMP_O  = CCMASK_ANY ^ CCMASK_CMP_UO;
 
+    // All condition-code values produced by comparisons.
+    const unsigned CCMASK_ICMP = CCMASK_0 | CCMASK_1 | CCMASK_2;
+    const unsigned CCMASK_FCMP = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3;
+
+    // Condition-code mask assignments for CS.
+    const unsigned CCMASK_CS_EQ = CCMASK_0;
+    const unsigned CCMASK_CS_NE = CCMASK_1;
+    const unsigned CCMASK_CS    = CCMASK_0 | CCMASK_1;
+
     // Return true if Val fits an LLILL operand.
     static inline bool isImmLL(uint64_t Val) {
       return (Val & ~0x000000000000ffffULL) == 0;