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-rw-r--r--lib/Target/ARM/ARMInstrNEON.td6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td
index 9fb6b41..b9dbd6f 100644
--- a/lib/Target/ARM/ARMInstrNEON.td
+++ b/lib/Target/ARM/ARMInstrNEON.td
@@ -935,6 +935,12 @@ class N2VCvtQ<bit op24, bit op23, bits<6> op21_16, bits<4> op11_8, bit op7,
// Multiclasses
//===----------------------------------------------------------------------===//
+// Abbreviations used in multiclass suffixes:
+// Q = quarter int (8 bit) elements
+// H = half int (16 bit) elements
+// S = single int (32 bit) elements
+// D = double int (64 bit) elements
+
// Neon 3-register vector operations.
// First with only element sizes of 8, 16 and 32 bits: