Provide slightly more refined error message when trying to lookup a target, and
none are registered.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76181 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/TargetRegistry.cpp b/lib/Support/TargetRegistry.cpp
index bf631fe..b3446e6 100644
--- a/lib/Support/TargetRegistry.cpp
+++ b/lib/Support/TargetRegistry.cpp
@@ -21,6 +21,11 @@
const Target *
TargetRegistry::getClosestStaticTargetForTriple(const std::string &TT,
std::string &Error) {
+ // Provide special warning when no targets are initialized.
+ if (begin() == end()) {
+ Error = "Unable to find target for this triple (no targets are registered)";
+ return 0;
+ }
const Target *Best = 0, *EquallyBest = 0;
unsigned BestQuality = 0;
for (iterator it = begin(), ie = end(); it != ie; ++it) {
@@ -35,7 +40,7 @@
}
if (!Best) {
- Error = "No available targets are compatible with this module";
+ Error = "No available targets are compatible with this triple";
return 0;
}
@@ -53,6 +58,12 @@
const Target *
TargetRegistry::getClosestStaticTargetForModule(const Module &M,
std::string &Error) {
+ // Provide special warning when no targets are initialized.
+ if (begin() == end()) {
+ Error = "Unable to find target for this module (no targets are registered)";
+ return 0;
+ }
+
const Target *Best = 0, *EquallyBest = 0;
unsigned BestQuality = 0;
for (iterator it = begin(), ie = end(); it != ie; ++it) {
@@ -84,6 +95,12 @@
const Target *
TargetRegistry::getClosestTargetForJIT(std::string &Error) {
+ // Provide special warning when no targets are initialized.
+ if (begin() == end()) {
+ Error = "No JIT is available for this host (no targets are registered)";
+ return 0;
+ }
+
const Target *Best = 0, *EquallyBest = 0;
unsigned BestQuality = 0;
for (iterator it = begin(), ie = end(); it != ie; ++it) {