SPARC NCG: Fix 64 bit addition, carry bit wasn't getting set.

[ghc-hetmet.git] / compiler / nativeGen / SPARC / Instr.hs

diff --git a/compiler/nativeGen/SPARC/Instr.hs b/compiler/nativeGen/SPARC/Instr.hs
index b21f947..3006782 100644 (file)
--- a/compiler/nativeGen/SPARC/Instr.hs
+++ b/compiler/nativeGen/SPARC/Instr.hs
@@ -126,6 +126,11 @@ data Instr
        | ST            Size Reg AddrMode               -- size, src, dst
 
        -- Int Arithmetic.
+       --      x:   add/sub with carry bit. 
+       --              In SPARC V9 addx and friends were renamed addc. 
+       --
+       --      cc:  modify condition codes
+       -- 
        | ADD           Bool Bool Reg RI Reg            -- x?, cc?, src1, src2, dst
        | SUB           Bool Bool Reg RI Reg            -- x?, cc?, src1, src2, dst