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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.target/i386/funcspec-7.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/funcspec-7.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/funcspec-7.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/funcspec-7.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/funcspec-7.c
new file mode 100644
index 000000000..56b549050
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/funcspec-7.c
@@ -0,0 +1,13 @@
+/* Test whether using target specific options, we can generate the reciprocal
+ square root instruction. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=k8 -mno-recip -mfpmath=sse -ffast-math" } */
+
+float do_recip (float a) __attribute__((__target__("recip")));
+float do_normal (float a);
+
+float do_recip (float a) { return 1.0f / __builtin_sqrtf (a); }
+float do_normal (float a) { return 1.0f / __builtin_sqrtf (a); }
+
+/* { dg-final { scan-assembler "sqrtss" } } */
+/* { dg-final { scan-assembler "rsqrtss" } } */