https://gcc.gnu.org/g:832ea2521279f8ede47ebd231c75a3e64e2cda06
commit r16-6480-g832ea2521279f8ede47ebd231c75a3e64e2cda06 Author: Andrew Pinski <[email protected]> Date: Sat Jan 3 15:09:40 2026 -0800 testsuite: Add new variant of pr42196-3.c While working on complex lowering, I noticed that the testcase pr42196-3.c had some interesting code in it and most likely a copy and pasto. Since this testcase was added back in 2009, I rather add a new testcase rather than changing the old one. The testcase was doing: ``` if (b) { f1 = __real__ u.cf; f1 = __imag__ u.cf; } else { f1 = __real__ u.ci; f1 = __imag__ u.ci; } r = bar (f1, f2); ``` I suspect the second f1 in both sides of the conditional were supposed to be f2. So the new testcase does that. Tested on x86_64-linux-gnu and pushed as obvious. PR tree-optimization/42196 gcc/testsuite/ChangeLog: * gcc.c-torture/compile/pr42196-4.c: New test. Signed-off-by: Andrew Pinski <[email protected]> Diff: --- gcc/testsuite/gcc.c-torture/compile/pr42196-4.c | 27 +++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/gcc/testsuite/gcc.c-torture/compile/pr42196-4.c b/gcc/testsuite/gcc.c-torture/compile/pr42196-4.c new file mode 100644 index 000000000000..d7e526cef08a --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr42196-4.c @@ -0,0 +1,27 @@ +union U +{ + __complex__ int ci; + __complex__ float cf; +}; + +float gd; +extern float bar (float, float); + +float foo (int b, union U u) +{ + float f1, f2, r; + + if (b) + { + f1 = __real__ u.cf; + f2 = __imag__ u.cf; + } + else + { + f1 = __real__ u.ci; + f2 = __imag__ u.ci; + } + + r = bar (f1, f2); + return r; +}
