diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/pr35045.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/pr35045.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr35045.c b/gcc/testsuite/gcc.dg/pr35045.c new file mode 100644 index 000000000..0b2b2090a --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr35045.c @@ -0,0 +1,38 @@ +/* { dg-do run } */ +/* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && { ilp32 && { ! nonpic } } } { "*" } { "" } } */ +/* { dg-options "-O2 -fgcse-after-reload" } */ + +extern void abort (void); + +__attribute__((noinline)) __complex__ float +give_neg1 (void) +{ + __complex__ float res; + __real__ res = -1.0; + __imag__ res = 1.0; + return res; +} + +__attribute__((noinline)) __complex__ float +mycacoshf (__complex__ float x) +{ + __complex__ float res; + res = give_neg1 (); + + /* We have to use the positive branch. */ + if (__real__ res < 0.0) + { + unsigned a,b,c,d,e,f; + res = -res; + asm __volatile__ ("" : "=r" (a), "=r" (b), "=r" (c), "=r" (d), "=r" (e), "=r" (f)); + } + return res; +} + +int main() +{ + __complex__ float res = mycacoshf(1.0); + if (__imag__ res >= 0.0) + abort(); + return 0; +} |