[WebAssembly] Fix fptoui lowering bounds
To fully avoid trapping on wasm, fptoui needs a second check to ensure that
the operand isn't below the supported range.
llvm-svn: 319354
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyLowerBrUnless.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyLowerBrUnless.cpp
index 576b71d..5b867aa 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyLowerBrUnless.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyLowerBrUnless.cpp
@@ -99,6 +99,13 @@
case NE_F32: Def->setDesc(TII.get(EQ_F32)); Inverted = true; break;
case EQ_F64: Def->setDesc(TII.get(NE_F64)); Inverted = true; break;
case NE_F64: Def->setDesc(TII.get(EQ_F64)); Inverted = true; break;
+ case EQZ_I32: {
+ // Invert an eqz by replacing it with its operand.
+ Cond = Def->getOperand(1).getReg();
+ Def->eraseFromParent();
+ Inverted = true;
+ break;
+ }
default: break;
}
}