From 5220a1aa8da8f9fc6163f67164d3889effb9621c Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 10 Aug 2016 21:01:08 +0000 Subject: Add tests for fegetexceptflag, fesetexceptflag. I noticed that there was no meaningful test coverage for fegetexceptflag and fesetexceptflag (one test ensures that calls to them compile and link, but nothing to verify they work correctly). This patch adds tests for these functions. fesetexceptflag is meant to set the relevant exception flag bits to the saved state without causing enabled traps to be taken. On some architectures, it is not possible to set exception flag bits without causing enabled traps to occur. Such architectures need to define EXCEPTION_SET_FORCES_TRAP to 1 in their math-tests.h, as is done in this patch for powerpc. x86 avoids needing to define this because the traps resulting from setting exception bits don't occur until the next floating-point operation or fwait instruction. Tested for x86_64, x86 and powerpc. Note that test-fexcept fails for powerpc because of a pre-existing bug in fesetexceptflag for powerpc, which I'll fix separately. * math/test-fexcept-traps.c: New file. * math/test-fexcept.c: Likewise. * math/Makefile (tests): Add test-fexcept and test-fexcept-traps. * sysdeps/generic/math-tests.h (EXCEPTION_SET_FORCES_TRAP): New macro. * sysdeps/powerpc/math-tests.h [!__NO_FPRS__] (EXCEPTION_SET_FORCES_TRAP): Likewise. --- math/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'math/Makefile') diff --git a/math/Makefile b/math/Makefile index 925b8d4525..1da1797198 100644 --- a/math/Makefile +++ b/math/Makefile @@ -146,7 +146,7 @@ tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \ test-nearbyint-except-2 test-signgam-uchar test-signgam-uchar-init \ test-signgam-uint test-signgam-uint-init test-signgam-ullong \ test-signgam-ullong-init test-nan-overflow test-nan-payload \ - $(tests-static) + test-fexcept test-fexcept-traps $(tests-static) tests-static = test-fpucw-static test-fpucw-ieee-static \ test-signgam-uchar-static test-signgam-uchar-init-static \ test-signgam-uint-static test-signgam-uint-init-static \ -- cgit v1.2.3