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[v2,5/8] tcg/tcg-op: Document bswap64_i64() byte pattern

Message ID 20230823145542.79633-6-philmd@linaro.org
State New
Headers show
Series tcg: Document *swap* helper implementations | expand

Commit Message

Philippe Mathieu-Daudé Aug. 23, 2023, 2:55 p.m. UTC 
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/tcg-op.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index e6e62c4278..45290cccad 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -1846,6 +1846,11 @@  void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg, int flags)
     }
 }
 
+/*
+ * bswap64_i64: 64-bit byte swap on a 64-bit value.
+ *
+ * Byte pattern:  bswap64_i64(abcdefgh) -> hgfedcba
+ */
 void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg)
 {
     if (TCG_TARGET_REG_BITS == 32) {