diff options
author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-01-12 00:30:30 +0000 |
---|---|---|
committer | H.J. Lu <hjl.tools@gmail.com> | 2016-02-05 04:51:18 -0800 |
commit | 91a92a568da24dde5fea76ba986ea5f93d8c4cf2 (patch) | |
tree | b178b90f2d32ee0e1d40e2da81959db776639d93 | |
parent | 039d1b9661b6ee5787214a2442955eb81bfc2833 (diff) | |
download | gcc-91a92a568da24dde5fea76ba986ea5f93d8c4cf2.tar.gz |
Set FLT_EVAL_METHOD to 2 only if 387 FPU is used
When 387 FPU isn't used, there is no excess precision. We should set
FLT_EVAL_METHOD to 2 only if 387 FPU is used.
gcc/
PR target/69225
* config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Set to 2 only if
TARGET_80387 is true.
gcc/testsuite
PR target/69225
* gcc.target/i386/pr69225-1.c: New test.
* gcc.target/i386/pr69225-2.c: Likewise.
* gcc.target/i386/pr69225-3.c: Likewise.
* gcc.target/i386/pr69225-4.c: Likewise.
* gcc.target/i386/pr69225-5.c: Likewise.
* gcc.target/i386/pr69225-6.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@232249 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r-- | gcc/config/i386/i386.h | 2 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr69225-1.c | 8 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr69225-2.c | 8 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr69225-3.c | 8 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr69225-4.c | 8 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr69225-5.c | 8 | ||||
-rw-r--r-- | gcc/testsuite/gcc.target/i386/pr69225-6.c | 8 |
7 files changed, 49 insertions, 1 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index bdb1ba3c0dd..982a3b3b25c 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -687,7 +687,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv); the rounding precision is indeterminate, since either may be chosen apparently at random. */ #define TARGET_FLT_EVAL_METHOD \ - (TARGET_MIX_SSE_I387 ? -1 : TARGET_SSE_MATH ? 0 : 2) + (TARGET_MIX_SSE_I387 ? -1 : (TARGET_80387 && !TARGET_SSE_MATH) ? 2 : 0) /* Whether to allow x87 floating-point arithmetic on MODE (one of SFmode, DFmode and XFmode) in the current excess precision diff --git a/gcc/testsuite/gcc.target/i386/pr69225-1.c b/gcc/testsuite/gcc.target/i386/pr69225-1.c new file mode 100644 index 00000000000..cc5b782326c --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr69225-1.c @@ -0,0 +1,8 @@ +/* { dg-do compile} */ +/* { dg-options "-msse2 -mfpmath=sse" } */ + +#include <float.h> + +#if FLT_EVAL_METHOD != 0 +# error FLT_EVAL_METHOD != 0 +#endif diff --git a/gcc/testsuite/gcc.target/i386/pr69225-2.c b/gcc/testsuite/gcc.target/i386/pr69225-2.c new file mode 100644 index 00000000000..cd0a6260cf6 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr69225-2.c @@ -0,0 +1,8 @@ +/* { dg-do compile} */ +/* { dg-options "-mno-sse -mno-80387" } */ + +#include <float.h> + +#if FLT_EVAL_METHOD != 0 +# error FLT_EVAL_METHOD != 0 +#endif diff --git a/gcc/testsuite/gcc.target/i386/pr69225-3.c b/gcc/testsuite/gcc.target/i386/pr69225-3.c new file mode 100644 index 00000000000..1440b7463d9 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr69225-3.c @@ -0,0 +1,8 @@ +/* { dg-do compile} */ +/* { dg-options "-m80387 -mfpmath=387" } */ + +#include <float.h> + +#if FLT_EVAL_METHOD != 2 +# error FLT_EVAL_METHOD != 2 +#endif diff --git a/gcc/testsuite/gcc.target/i386/pr69225-4.c b/gcc/testsuite/gcc.target/i386/pr69225-4.c new file mode 100644 index 00000000000..b032a5f2bdf --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr69225-4.c @@ -0,0 +1,8 @@ +/* { dg-do compile} */ +/* { dg-options "-msse2 -mfancy-math-387 -mfpmath=sse" } */ + +#include <float.h> + +#if FLT_EVAL_METHOD != 0 +# error FLT_EVAL_METHOD != 0 +#endif diff --git a/gcc/testsuite/gcc.target/i386/pr69225-5.c b/gcc/testsuite/gcc.target/i386/pr69225-5.c new file mode 100644 index 00000000000..4162f7790f1 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr69225-5.c @@ -0,0 +1,8 @@ +/* { dg-do compile} */ +/* { dg-options "-msse2 -m80387 -mfpmath=sse,387" } */ + +#include <float.h> + +#if FLT_EVAL_METHOD != -1 +# error FLT_EVAL_METHOD != -1 +#endif diff --git a/gcc/testsuite/gcc.target/i386/pr69225-6.c b/gcc/testsuite/gcc.target/i386/pr69225-6.c new file mode 100644 index 00000000000..cd5f41946d6 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr69225-6.c @@ -0,0 +1,8 @@ +/* { dg-do compile} */ +/* { dg-options "-mno-80387" } */ + +#include <float.h> + +#if FLT_EVAL_METHOD != 0 +# error FLT_EVAL_METHOD != 0 +#endif |