From: Pierre-Marie de Rodat <derodat@adacore.com>
To: gcc-patches@gcc.gnu.org
Subject: [Ada] Shutdown codepeer message
Date: Mon, 25 Oct 2021 15:09:03 +0000 [thread overview]
Message-ID: <20211025150903.GA346421@adacore.com> (raw)
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Which is a false positive, caused by a confusion on the expanded code
for pragma Loop_Variant.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* libgnat/s-widthu.adb: Add pragma Annotate.
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diff --git a/gcc/ada/libgnat/s-widthu.adb b/gcc/ada/libgnat/s-widthu.adb
--- a/gcc/ada/libgnat/s-widthu.adb
+++ b/gcc/ada/libgnat/s-widthu.adb
@@ -134,10 +134,13 @@ begin
W := W + 1;
Pow := Pow * 10;
- pragma Loop_Variant (Decreases => T);
pragma Loop_Invariant (W in 3 .. Max_W + 3);
pragma Loop_Invariant (Pow = Big_10 ** (W - 2));
pragma Loop_Invariant (Big (T) = Big (T_Init) / Pow);
+ pragma Loop_Variant (Decreases => T);
+ pragma Annotate
+ (CodePeer, False_Positive,
+ "validity check", "confusion on generated code");
end loop;
declare
reply other threads:[~2021-10-25 15:09 UTC|newest]
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