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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.target/i386/volatile-2.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/volatile-2.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/i386/volatile-2.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/volatile-2.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/volatile-2.c new file mode 100644 index 000000000..f4e6fb124 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/volatile-2.c @@ -0,0 +1,93 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target nonpic } */ +/* { dg-options "-O2" } */ + +/* Check volatiles are written, read or not re-read consistently */ + + +/* simple assignments */ + +extern int volatile obj_0; +void test_0 (int data) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_0(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_0(\\(%rip\\))?," } } */ + obj_0 = data; +} + +extern int volatile obj_1; +int test_1 (int data) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_1(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_1(\\(%rip\\))?," } } */ + return obj_1 = data; +} + +extern int volatile obj_2; +int test_2 (void) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_2(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_2(\\(%rip\\))?," } } */ + return obj_2 = 0; +} + + +/* Assignments in compound exprs */ + +extern int volatile obj_3; +int test_3 (int data) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_3(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_3(\\(%rip\\))?," } } */ + return (obj_3 = data, 0); +} + +extern int volatile obj_4; +int test_4 (void) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_4(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_4(\\(%rip\\))?," } } */ + return (obj_4 = 0, 0); +} +extern int volatile obj_5; +int test_5 (void) +{ + /* should reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_5(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler "movl\[ \t\]_?obj_5(\\(%rip\\))?," } } */ + return (obj_5 = 0, obj_5); +} + +/* Assignments in conditional exprs */ + +extern int volatile obj_6; +void test_6 (int data, int cond) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_6(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_6(\\(%rip\\))?," } } */ + cond ? obj_6 = data : 0; +} + +extern int volatile obj_7; +int test_7 (int data, int cond) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_7(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_7(\\(%rip\\))?," } } */ + return cond ? obj_7 = data : 0; +} + +extern int volatile obj_8; +int test_8 (int cond) +{ + /* should not reread obj */ + /* { dg-final { scan-assembler "movl\[ \t\]\[^,\]+, _?obj_8(\\(%rip\\))?" } } */ + /* { dg-final { scan-assembler-not "movl\[ \t\]_?obj_8(\\(%rip\\))?," } } */ + return cond ? obj_8 = 0 : 0; +} |