From ce12a523b0e1a64cea63ba099642d7f3492a3791 Mon Sep 17 00:00:00 2001
From: Jon Chesterfield <jonathanchesterfield@gmail.com>
Date: Tue, 17 Dec 2019 02:22:28 +0000
Subject: [PATCH] [libomptarget][nfc] Move timer functions behind target_impl

Summary: [libomptarget][nfc] Move timer functions behind target_impl

Reviewers: jdoerfert, ABataev, grokos

Reviewed By: jdoerfert

Subscribers: jvesely, openmp-commits

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D71584
---
 openmp/libomptarget/deviceRTLs/amdgcn/src/target_impl.h |  7 +++++++
 openmp/libomptarget/deviceRTLs/nvptx/src/libcall.cu     | 13 +++++--------
 openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h  | 11 +++++++++++
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/openmp/libomptarget/deviceRTLs/amdgcn/src/target_impl.h b/openmp/libomptarget/deviceRTLs/amdgcn/src/target_impl.h
index 858a023..3c4e1f3 100644
--- a/openmp/libomptarget/deviceRTLs/amdgcn/src/target_impl.h
+++ b/openmp/libomptarget/deviceRTLs/amdgcn/src/target_impl.h
@@ -105,6 +105,13 @@ INLINE uint32_t __kmpc_impl_smid() {
   return __smid();
 }
 
+INLINE double __target_impl_get_wtick() { return ((double)1E-9); }
+
+EXTERN int64_t __clock64();
+INLINE double __target_impl_get_wtime() {
+  return ((double)1.0 / 745000000.0) * __clock64();
+}
+
 INLINE uint64_t __kmpc_impl_ffs(uint64_t x) { return __builtin_ffsl(x); }
 
 INLINE uint64_t __kmpc_impl_popc(uint64_t x) { return __builtin_popcountl(x); }
diff --git a/openmp/libomptarget/deviceRTLs/nvptx/src/libcall.cu b/openmp/libomptarget/deviceRTLs/nvptx/src/libcall.cu
index d8656f3..a43f0c6 100644
--- a/openmp/libomptarget/deviceRTLs/nvptx/src/libcall.cu
+++ b/openmp/libomptarget/deviceRTLs/nvptx/src/libcall.cu
@@ -12,19 +12,16 @@
 //===----------------------------------------------------------------------===//
 
 #include "common/omptarget.h"
-
-// Timer precision is 1ns
-#define TIMER_PRECISION ((double)1E-9)
+#include "target_impl.h"
 
 EXTERN double omp_get_wtick(void) {
-  PRINT(LD_IO, "omp_get_wtick() returns %g\n", TIMER_PRECISION);
-  return TIMER_PRECISION;
+  double rc = __target_impl_get_wtick();
+  PRINT(LD_IO, "omp_get_wtick() returns %g\n", rc);
+  return rc;
 }
 
 EXTERN double omp_get_wtime(void) {
-  unsigned long long nsecs;
-  asm("mov.u64  %0, %%globaltimer;" : "=l"(nsecs));
-  double rc = (double)nsecs * TIMER_PRECISION;
+  double rc = __target_impl_get_wtime();
   PRINT(LD_IO, "call omp_get_wtime() returns %g\n", rc);
   return rc;
 }
diff --git a/openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h b/openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h
index 4bb6677..7a85e74 100644
--- a/openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h
+++ b/openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h
@@ -100,6 +100,17 @@ INLINE uint32_t __kmpc_impl_smid() {
   return id;
 }
 
+INLINE double __target_impl_get_wtick() {
+  // Timer precision is 1ns
+  return ((double)1E-9);
+}
+
+INLINE double __target_impl_get_wtime() {
+  unsigned long long nsecs;
+  asm("mov.u64  %0, %%globaltimer;" : "=l"(nsecs));
+  return (double)nsecs * __target_impl_get_wtick();
+}
+
 INLINE uint32_t __kmpc_impl_ffs(uint32_t x) { return __ffs(x); }
 
 INLINE uint32_t __kmpc_impl_popc(uint32_t x) { return __popc(x); }
-- 
2.7.4