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Diffstat (limited to 'tests/basic_parameter_types.txt')
| -rw-r--r-- | tests/basic_parameter_types.txt | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/tests/basic_parameter_types.txt b/tests/basic_parameter_types.txt new file mode 100644 index 0000000..5bbb483 --- /dev/null +++ b/tests/basic_parameter_types.txt @@ -0,0 +1,158 @@ + +Instructions for reproducing test_kernel vector store error in shamrock: + +1. Clone (new) public Linaro shamrock repo (gpgpu/shamrock.git) and checkout branch: basic_parameter_types. + +2. Build per shamrock readme. + +2. % cp <shamrock-src>/tests/basic_parameter_types.cl <shamrock-build>/tests + +3. Run the following gdb session (see comments lines with #### ): + +tests> gdb --args tests basic_parameter_types nofork +GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu +Copyright (C) 2013 Free Software Foundation, Inc. +License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. Type "show copying" +and "show warranty" for details. +This GDB was configured as "arm-linux-gnueabihf". +For bug reporting instructions, please see: +<http://www.gnu.org/software/gdb/bugs/>... +Reading symbols from /home/user/shamrock_build/tests/tests...done. +(gdb) b main +Breakpoint 1 at 0xb45a: file /home/user/shamrock/tests/tests.c, line 44. +(gdb) run +Starting program: /home/user/shamrock_build/tests/tests basic_parameter_types nofork +[Thread debugging using libthread_db enabled] +Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1". + +Breakpoint 1, main (argc=3, argv=0xbefff704) + at /home/user/shamrock/tests/tests.c:44 +44 Suite *s = NULL; +(gdb) b Coal::CPUKernelWorkGroup::run +Breakpoint 2 at 0xb53e506a: file /home/user/shamrock/src/core/cpu/kernel.cpp, line 649. +(gdb) c +Continuing. +Running suite(s): basic_parameter_types +[New Thread 0xb4de4450 (LWP 9283)] +[New Thread 0xb45e4450 (LWP 9284)] +[Switching to Thread 0xb4de4450 (LWP 9283)] + +Breakpoint 2, Coal::CPUKernelWorkGroup::run (this=0xb3800468) + at /home/user/shamrock/src/core/cpu/kernel.cpp:649 +649 std::vector<void *> locals_to_free; +(gdb) list +644 } +645 +646 bool CPUKernelWorkGroup::run() +647 { +648 // Get the kernel function to call +649 std::vector<void *> locals_to_free; +650 llvm::Function *kernel_func = p_kernel->callFunction(); +651 +652 if (!kernel_func) +653 return false; +(gdb) +654 +655 Program *p = (Program *)p_kernel->kernel()->parent(); +656 CPUProgram *prog = (CPUProgram *)(p->deviceDependentProgram(p_kernel->device())); +657 +658 // Make object usable for execution: (only applies to MCJIT): +659 prog->jit()->finalizeObject(); +660 +661 std::string kname = kernel_func->getName().str(); +662 +663 // original +(gdb) +664 p_kernel_func_addr = +665 (void(*)(void *))prog->jit()->getPointerToFunction(kernel_func); +666 +667 // TAG +668 // llvm::Function *t_func = prog->jit()->FindFunctionNamed(p_kernel->p_kernel->p_name->str()); +669 // llvm::Function *t_func = prog->jit()->FindFunctionNamed(p_kernel->kernel()->p_name.c_str()); +670 // p_kernel_func_addr = (void(*)(void *))prog->jit()->getPointerToFunction(t_func); +671 p_kernel_func_addr =(void(*)(void *)) prog->jit()->getFunctionAddress(kname); +672 +673 // Get the arguments +(gdb) b 661 #### run to after finalizeObject(), test_kernel symbol now exists +Breakpoint 3 at 0xb53e50ca: file /home/user/shamrock/src/core/cpu/kernel.cpp, line 661. +(gdb) c +Continuing. + +Breakpoint 3, Coal::CPUKernelWorkGroup::run (this=0xb3800468) + at /home/user/shamrock/src/core/cpu/kernel.cpp:661 +661 std::string kname = kernel_func->getName().str(); +(gdb) b test_kernel +Breakpoint 4 at 0xb50cf008 +(gdb) c +Continuing. + +Breakpoint 4, 0xb50cf008 in test_kernel () +(gdb) disass +Dump of assembler code for function test_kernel: + 0xb50cf000 <+0>: sub sp, sp, #4 + 0xb50cf004 <+4>: str r0, [sp] +=> 0xb50cf008 <+8>: mov r0, sp + 0xb50cf00c <+12>: vld1.32 {d16[0]}, [r0 :32] + 0xb50cf010 <+16>: vmovl.u8 q8, d16 + 0xb50cf014 <+20>: vmov.u16 r2, d16[2] + 0xb50cf018 <+24>: vmov.u16 r0, d16[0] + 0xb50cf01c <+28>: sxtb r2, r2 + 0xb50cf020 <+32>: sxtb r0, r0 + 0xb50cf024 <+36>: vmov.32 d20[0], r2 + 0xb50cf028 <+40>: vmov.u16 r2, d16[1] + 0xb50cf02c <+44>: vmov.32 d18[0], r0 + 0xb50cf030 <+48>: vmov.u16 r0, d16[3] + 0xb50cf034 <+52>: sxtb r2, r2 + 0xb50cf038 <+56>: sxtb r0, r0 + 0xb50cf03c <+60>: vmov.32 d18[1], r2 + 0xb50cf040 <+64>: vmov.32 d20[1], r0 + 0xb50cf044 <+68>: vcvt.f32.s32 q8, q9 + 0xb50cf048 <+72>: vcvt.f32.s32 q9, q10 + 0xb50cf04c <+76>: vext.8 q8, q8, q8, #8 + 0xb50cf050 <+80>: vext.8 q8, q8, q9, #8 + 0xb50cf054 <+84>: vst1.64 {d16-d17}, [r1 :128] + 0xb50cf058 <+88>: add sp, sp, #4 + 0xb50cf05c <+92>: bx lr +End of assembler dump. +(gdb) stepi 18 +0xb50cf050 in test_kernel () +(gdb) stepi ### step down to vst1.64 instruction. +0xb50cf054 in test_kernel () +(gdb) display/x $r1 ### $r1 register should hold output float4 *result ptr +2: /x $r1 = 0xf94bc8 +(gdb) x/4f $r1 #### hmmm, shouldn't these be all 0's? +0xf94bc8: -4.7186802e-07 2.39711496e-38 2.12743103e-07 7.56701171e-44 +(gdb) display/x $d16 ### show that convert_float4(char4) worked: {0,1,2,3} +3: /x $d16 = {u8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x3f}, u16 = {0x0, + 0x0, 0x0, 0x3f80}, u32 = {0x0, 0x3f800000}, u64 = 0x3f80000000000000, + f32 = {0x0, 0x1}, f64 = 0x0} +(gdb) display/x $d17 +4: /x $d17 = {u8 = {0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x40, 0x40}, u16 = {0x0, + 0x4000, 0x0, 0x4040}, u32 = {0x40000000, 0x40400000}, + u64 = 0x4040000040000000, f32 = {0x2, 0x3}, f64 = 0x20} +(gdb) stepi ### now stepi vst1.64 instruction, should store {0,1,2,3} to [$r1] +0xb50cf058 in test_kernel () +4: /x $d17 = {u8 = {0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x40, 0x40}, u16 = {0x0, + 0x4000, 0x0, 0x4040}, u32 = {0x40000000, 0x40400000}, + u64 = 0x4040000040000000, f32 = {0x2, 0x3}, f64 = 0x20} +3: /x $d16 = {u8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x3f}, u16 = {0x0, + 0x0, 0x0, 0x3f80}, u32 = {0x0, 0x3f800000}, u64 = 0x3f80000000000000, + f32 = {0x0, 0x1}, f64 = 0x0} +2: /x $r1 = 0xf940d9 #### OOPS! $r1 register changed! NOT POSSIBLE? +(gdb) x/4f $r1 +0xf940d9: 1.66694513e-24 -7.21760423e-29 1.77866814e-41 -3.85185989e-34 +(gdb) x/4f 0xf94bc8 #### and memory at old $r1 (result ptr) has garbage. +0xf94bc8: 4.20389539e-45 2.39711496e-38 2.12743103e-07 7.56701171e-44 +(gdb) c +Continuing. +Conversion from char failed: got 4.2039e-45,expected 0 +Conversion from char failed: got 2.39711e-38,expected 1 +Conversion from char failed: got 2.12743e-07,expected 2 +Conversion from char failed: got 7.56701e-44,expected 3 +0%: Checks: 1, Failures: 1, Errors: 0 +/home/user/shamrock/tests/test_basic_parameter_types.cpp:139:F:basic_parameter_types:test_basic_parameter_types:0: the kernel hasn't done its job, the buffer is wrong +[Thread 0xb4de4450 (LWP 9283) exited] +[Thread 0xb45e4450 (LWP 9284) exited] +[Inferior 1 (process 9280) exited with code 01] |