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-rw-r--r--gcc-4.9/gcc/config/rs6000/rs6000.opt4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/rs6000/rs6000.opt b/gcc-4.9/gcc/config/rs6000/rs6000.opt
index 4c1a02a52..4d0d5e73d 100644
--- a/gcc-4.9/gcc/config/rs6000/rs6000.opt
+++ b/gcc-4.9/gcc/config/rs6000/rs6000.opt
@@ -588,3 +588,7 @@ Allow double variables in upper registers with -mcpu=power7 or -mvsx
mupper-regs-sf
Target Undocumented Mask(UPPER_REGS_SF) Var(rs6000_isa_flags)
Allow float variables in upper registers with -mcpu=power8 or -mp8-vector
+
+moptimize-swaps
+Target Undocumented Var(rs6000_optimize_swaps) Init(1) Save
+Analyze and remove doubleword swaps from VSX computations.