From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/ada/acats/tests/c4/c490003.a | 215 +++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 gcc/testsuite/ada/acats/tests/c4/c490003.a (limited to 'gcc/testsuite/ada/acats/tests/c4/c490003.a') diff --git a/gcc/testsuite/ada/acats/tests/c4/c490003.a b/gcc/testsuite/ada/acats/tests/c4/c490003.a new file mode 100644 index 000000000..a135b5ac3 --- /dev/null +++ b/gcc/testsuite/ada/acats/tests/c4/c490003.a @@ -0,0 +1,215 @@ +-- C490003.A +-- +-- Grant of Unlimited Rights +-- +-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, +-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained +-- unlimited rights in the software and documentation contained herein. +-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making +-- this public release, the Government intends to confer upon all +-- recipients unlimited rights equal to those held by the Government. +-- These rights include rights to use, duplicate, release or disclose the +-- released technical data and computer software in whole or in part, in +-- any manner and for any purpose whatsoever, and to have or permit others +-- to do so. +-- +-- DISCLAIMER +-- +-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR +-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED +-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE +-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE +-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A +-- PARTICULAR PURPOSE OF SAID MATERIAL. +--* +-- +-- OBJECTIVE: +-- Check that a static expression is legal if its evaluation fails +-- no language-defined check other than Overflow_Check. Check that such +-- a static expression is legal if it is part of a larger static +-- expression, even if its value is outside the base range of the +-- expected type. +-- +-- Check that if a static expression is part of the right operand of a +-- short circuit control form whose value is determined by its left +-- operand, it is not evaluated. +-- +-- Check that a static expression in a non-static context is evaluated +-- exactly. +-- +-- TEST DESCRIPTION: +-- The first part of the objective is tested by constructing static +-- expressions which involve predefined operations of integer, floating +-- point, and fixed point subtypes. Intermediate expressions within the +-- static expressions have values outside the base range of the expected +-- type. In one case, the extended-range intermediates are compared as +-- part of a boolean expression. In the remaining two cases, further +-- predefined operations on the intermediates bring the final result +-- within the base range. An implementation which compiles these static +-- expressions satisfies this portion of the objective. A check is +-- performed at run-time to ensure that the static expressions evaluate +-- to values within the base range of their respective expected types. +-- +-- The second part of the objective is tested by constructing +-- short-circuit control forms whose left operands have the values +-- shown below: +-- +-- (TRUE) or else (...) +-- (FALSE) and then (...) +-- +-- In both cases the left operand determines the value of the condition. +-- In the test each right operand involves a division by zero, which will +-- raise Constraint_Error if evaluated. A check is made that no exception +-- is raised when each short-circuit control form is evaluated, and that +-- the value of the condition is that of the left operand. +-- +-- The third part of the objective is tested by evaluating static +-- expressions involving many operations in contexts which do not +-- require a static expression, and verifying that the exact +-- mathematical results are calculated. +-- +-- +-- CHANGE HISTORY: +-- 15 Sep 95 SAIC Initial prerelease version for ACVC 2.1. +-- 20 Oct 96 SAIC Modified expressions in C490003_0 to avoid +-- the use of universal operands. +-- +--! + +with System; +package C490003_0 is + + type My_Flt is digits System.Max_Digits; + + Flt_Range_Diff : My_Flt := (My_Flt'Base'Last - My_Flt'Base'First) - + (My_Flt'Last - My_Flt'First); -- OK. + + + type My_Fix is delta 0.125 range -128.0 .. 128.0; + + Symmetric : Boolean := (My_Fix'Base'Last - My_Fix'Base'First) = + (My_Fix'Base'Last + My_Fix'Base'Last); -- OK. + + + Center : constant Integer := Integer'Base'Last - + (Integer'Base'Last - + Integer'Base'First) / 2; -- OK. + +end C490003_0; + + + --==================================================================-- + + +with Ada.Numerics; +package C490003_1 is + + Zero : constant := 0.0; + Pi : constant := Ada.Numerics.Pi; + + Two_Pi : constant := 2.0 * Pi; + Half_Pi : constant := Pi/2.0; + + Quarter : constant := 90.0; + Half : constant := 180.0; + Full : constant := 360.0; + + Deg_To_Rad : constant := Half_Pi/90; + Rad_To_Deg : constant := 1.0/Deg_To_Rad; + +end C490003_1; + + + --==================================================================-- + + +with C490003_0; +with C490003_1; + +with Report; +procedure C490003 is +begin + Report.Test ("C490003", "Check that static expressions failing " & + "Overflow_Check are legal if part of a larger static " & + "expression. Check that static expressions as right " & + "operands of short-circuit control forms are not " & + "evaluated if value of control form is determined by " & + "left operand. Check that static expressions in non-static " & + "contexts are evaluated exactly"); + + +-- +-- Static expressions within larger static expressions: +-- + + + if C490003_0.Flt_Range_Diff not in C490003_0.My_Flt'Base'Range then + Report.Failed ("Error evaluating static expression: floating point"); + end if; + + if C490003_0.Symmetric not in Boolean'Range then + Report.Failed ("Error evaluating static expression: fixed point"); + end if; + + if C490003_0.Center not in Integer'Base'Range then + Report.Failed ("Error evaluating static expression: integer"); + end if; + + +-- +-- Short-circuit control forms: +-- + + declare + N : constant := 0.0; + begin + + begin + if not ( (N = 0.0) or else (1.0/N > 0.5) ) then + Report.Failed ("Error evaluating OR ELSE"); + end if; + exception + when Constraint_Error => + Report.Failed ("Right side of OR ELSE was evaluated"); + when others => + Report.Failed ("OR ELSE: unexpected exception raised"); + end; + + begin + if (N /= 0.0) and then (1.0/N <= 0.5) then + Report.Failed ("Error evaluating AND THEN"); + end if; + exception + when Constraint_Error => + Report.Failed ("Right side of AND THEN was evaluated"); + when others => + Report.Failed ("AND THEN: unexpected exception raised"); + end; + + end; + + +-- +-- Exact evaluation of static expressions: +-- + + + declare + use C490003_1; + + Left : constant := 6.0 + 0.3125*( (Full*0.375) + (Half/2.4) - + ((Quarter + 36.0)/3.0) )/10.0; -- 11.25 + Right : constant := (Pi/3.0) * 1.2 * (15.0/96.0); -- Pi/16 + begin + if Deg_To_Rad*Left /= Right then + Report.Failed ("Static expressions not evaluated exactly: #1"); + end if; + + if ((Pi*Rad_To_Deg)*2.0 + 4.0*Quarter)/16.0 /= Rad_To_Deg*(Pi/4.0) then + Report.Failed ("Static expressions not evaluated exactly: #2"); + end if; + end; + + + Report.Result; +end C490003; -- cgit v1.2.3