if operand is signed 64 bit integer, emit -1 for SExt casting
Signed-off-by: Homer Hsing <[email protected]>
---
backend/src/llvm/llvm_gen_backend.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/backend/src/llvm/llvm_gen_backend.cpp
b/backend/src/llvm/llvm_gen_backend.cpp
index 6f4ed72..b824bf9 100644
--- a/backend/src/llvm/llvm_gen_backend.cpp
+++ b/backend/src/llvm/llvm_gen_backend.cpp
@@ -1694,7 +1694,7 @@ namespace gbe
const ir::ImmediateIndex zero = ctx.newIntegerImmediate(0, dstType);
ir::ImmediateIndex one;
if (I.getOpcode() == Instruction::SExt
- && (dstType == ir::TYPE_S8 || dstType == ir::TYPE_S16 || dstType
== ir::TYPE_S32))
+ && (dstType == ir::TYPE_S8 || dstType == ir::TYPE_S16 || dstType
== ir::TYPE_S32 || dstType == ir::TYPE_S64))
one = ctx.newIntegerImmediate(-1, dstType);
else
one = ctx.newIntegerImmediate(1, dstType);
--
1.8.3.2
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