From 50745bf0802f32d796f755b799d6fde688415637 Mon Sep 17 00:00:00 2001 From: Daniel Dunbar Date: Fri, 17 Jul 2009 15:50:49 +0000 Subject: [PATCH] Provide slightly more refined error message when trying to lookup a target, and none are registered. llvm-svn: 76181 --- llvm/lib/Support/TargetRegistry.cpp | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/llvm/lib/Support/TargetRegistry.cpp b/llvm/lib/Support/TargetRegistry.cpp index bf631feb686b..b3446e610922 100644 --- a/llvm/lib/Support/TargetRegistry.cpp +++ b/llvm/lib/Support/TargetRegistry.cpp @@ -21,6 +21,11 @@ TargetRegistry::iterator TargetRegistry::begin() { 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 @@ TargetRegistry::getClosestStaticTargetForTriple(const std::string &TT, } 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 @@ TargetRegistry::getClosestStaticTargetForTriple(const std::string &TT, 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 @@ TargetRegistry::getClosestStaticTargetForModule(const Module &M, 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) {