[pkg-d-commits] [ldc] 89/95: Add specific warning for @fmf("contract") when it's not supported by LLVM

[Matthias Klumpp]

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mak pushed a commit to annotated tag v1.3.0-beta1
in repository ldc.

commit bc119d453b667d121082525aeec18722a8eb2560
Author: Johan Engelen <jbc.engelen at gmail.com>
Date:   Wed Apr 12 22:34:20 2017 +0200

    Add specific warning for @fmf("contract") when it's not supported by LLVM
---
 gen/uda.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gen/uda.cpp b/gen/uda.cpp
index b6fee39..7e1711b 100644
--- a/gen/uda.cpp
+++ b/gen/uda.cpp
@@ -215,9 +215,13 @@ void applyAttrLLVMFastMathFlag(StructLiteralExp *sle, IrFunction *irFunc) {
     irFunc->FMF.clear();
   } else if (value == "fast") {
     irFunc->FMF.setUnsafeAlgebra();
-#if LDC_LLVM_VER >= 500
   } else if (value == "contract") {
+#if LDC_LLVM_VER >= 500
     irFunc->FMF.setAllowContract(true);
+#else
+    sle->warning("ignoring parameter \"contract\" for @ldc.attributes.%s: "
+                 "LDC needs to be built against LLVM 5.0+ for support",
+                 sle->sd->ident->toChars());
 #endif
   } else if (value == "nnan") {
     irFunc->FMF.setNoNaNs();

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