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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/pr35045.c
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Diffstat (limited to 'gcc/testsuite/gcc.dg/pr35045.c')
-rw-r--r--gcc/testsuite/gcc.dg/pr35045.c38
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;
+}