From 016036f247f9538016f4e8cbdb889ac631f4a5c0 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Thu, 15 Aug 2019 23:02:37 +0200 Subject: Add doc for pmgen semioptional statement, Add pmgen changes to CHANGELOG Signed-off-by: Clifford Wolf --- passes/pmgen/README.md | 3 +++ 1 file changed, 3 insertions(+) (limited to 'passes') diff --git a/passes/pmgen/README.md b/passes/pmgen/README.md index 4aa7de162..f92445a86 100644 --- a/passes/pmgen/README.md +++ b/passes/pmgen/README.md @@ -175,6 +175,9 @@ explore the case where `mul` is set to `nullptr`. Without the `optional` statement a match may only be assigned nullptr when one of the `if` expressions evaluates to `false`. +The `semioptional` statement marks matches that must match if at least one +matching cell exists, but if no matching cell exists it is set to `nullptr`. + Additional code --------------- -- cgit v1.2.3